Heidolph MR Hei-Tec magnetic stirrer with Temperature Sensor

1-l Heating Bath PTFE coated, for water

2-l Heating Bath PTFE coated, for water

4-l Heating Bath PTFE coated, for water

1-l Heating Bath for Oil

Maximum temperature of 250 °C

2-l Heating Bath for Oil

Maximum temperature of 250 °C

4-l Heating Bath for Oil

Maximum temperature of 250 °C

Concave Block Adapter for 1-l round flasks

Heating Bath Fluid 5 l

up to 220 °C, not mixable with water

Temperature Sensor Pt 1000 - stainless steel

For MR Hei-End and MR Hei-Tec

Silicone Protective Cover for MR Hei-Standard

Replaceable cover against splashes and dripping water

Stirring Bar - cylindrical shape, PTFE coated

1 pcs. of 25, 40, 50 mm each

Stirring Bar - oval shape 15 x 6 mm

• pack of 3 pcs.
• for 10-ml flasks

Stirring Bar - oval shape 25 x 10 mm

• Pack of 3 pcs.
• for 25 to 50-ml

Stirring Bar - oval shape 30 x 10 mm

• Pack of 3 pcs.
• for 100 to 250-ml

Stirring Bar - cross shape 16,5 mm

• Pack of 20 pcs.
• for 25 to 50-ml flasks

Stirring Bar Evaluation Kit

• Pack of 10 pcs.
• for 100 to 400-ml flasks

2 x Cross Shape Stirrer Bars 10 mm
2 x Cross Shape Stirrer Bars 16.5 mm
2 x Elliptical Shape Stirrer Bars 25 mm
2 x Oval Stirrer Bars 40 mm
2 x Oval Stirrer Bars 50 mm

Heat-On 250-ml Block

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.

Each Heat-On Block is a stand-alone product that can be placed directly onto the stirring hotplate.

Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 250-ml Block with flask sidearm cutouts

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.

Each Heat-On Block is a stand-alone product that can be placed directly onto the stirring hotplate.

Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 500-ml Block

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.

Each Heat-On Block is a stand-alone product that can be placed directly onto the stirring hotplate.

Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 1-Liter Block

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.

Each Heat-On Block is a stand-alone product that can be placed directly onto the stirring hotplate.

Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 2-Liter Block

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.

Each Heat-On Block is a stand-alone product that can be placed directly onto the stirring hotplate.

Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 3-Liter Block

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.

Each Heat-On Block is a stand-alone product that can be placed directly onto the stirring hotplate.

Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 5-Liter Block

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.

Each Heat-On Block is a stand-alone product that can be placed directly onto the stirring hotplate.

Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

This unique Multi-Well Holder is designed to hold either one or two inserts for flasks (only accepts one 150-ml insert). The inserts are available for 10-ml, 25-ml, 50-ml, 100-ml and 150-ml flasks. Flask inserts also feature cut-away sides for use with two or three neck flasks and accept the optional safety lifting handles.


The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 10-ml Insert

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 25-ml Insert

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 50-ml Insert

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 100-ml Insert

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Heat-On 150-ml Insert

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Package Heat-On Multi-Well Basic including

• 1 x Multi-Well holder
• 3 inserts for 25-ml, 50-ml and 100-ml flasks

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Package Heat-On Multi-Well including

• 1 x Multi-Well holder
• 6 inserts, 2 each for 25-ml, 50-ml and 100-ml flasks

The Heat-On attachments are suitable to replace oil baths and heating mantles in your lab and reduces the risk of fire hazards. Moreover the attachments minimize the messy oil clear-ups that result from changing oil or removing flasks from an oil bath!
Our attachments are by far the safest, fastest and most efficient method for heating and mixing solutions in round-bottom flasks from 10 ml to 5 liter.
Heat-On fits precisely to every flask, thus ensuring maximum surface contact and fast heat transfer. Eliminates the mess from cleaning flasks after removal from an oil bath or hazardous spills when an oil bath slips off a stirring plate. As a result, oil as a heat transfer media is made redundant and your lab is a safer place with the Heat-On block system.

For best results we recommend round-bottom flasks that comply with DIN EN ISO 4797 and DIN EN ISO 24450.


Premium Safety Standards

• Prevents accidents, fires and contamination by completely banning all oil baths from your laboratory.
• This unique design prevents glass breakage and protects you from spilled chemicals or solvents.
• The high temperature range provides unlimited safety for applications up to 260 °C.

Superior Ease of Use

• A unique PTFE -coating on the aluminum Heat-On body allows for superior chemical resistance and many years of service life.
• Precise temperature control inside the vessel or on the heating block with a thermocouple port that provides actual block temperature back to your MR Series hotplate.

Reduced Cost of Ownership

• Increase your daily work throughput significantly and reduce your over all process times by quick changing of Heat-On blocks.
• Save energy costs - 1,000 ml of water heats up 66 % faster than conventional oil baths.
• 150 ml flask of water boils in less than 11 minutes.

Retort Clamp - Heat-On accessories

Retort Clamp for SilentCrusher M / Heat-On

Flask Stand and Clamp Kit (including Support Rod for Heating Bath 4-l, Retort Clamp, Boss Head)

Heat-On Safety Handles, 2 pcs.

PTFE Safety Covers for Heat-On Multi-Well Holder

PTFE Safety Covers for Heat-On 200/300-ml Block

PTFE Safety Covers for Heat-On 500-ml Block

PTFE Safety Covers for Heat-On 1-Liter Block

StarFish Base plate (145 mm) with optional handles fits securely on to the top plate, maintaining good thermal contact with the heated surface.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

StarFish safety handles for base plate, 2 pcs.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

MonoBlock for 5 x 250-ml Flasks

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

Insert for MonoBlocks for 150 ml Flask

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

Insert for MonoBlocks for 100 ml Flask

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

Insert for MonoBlocks for 50 ml Flask

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

Insert for MonoBlocks for 25 ml Flask

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

Insert for MonoBlocks for 10 ml Flask

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

Insert for MonoBlocks for 5 ml Flask

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

MonoBlock for 16 x 24 mm Tubes

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

MonoBlock for 40 x 12 mm Tubes

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

MonoBlock for 20 x 21 mm Vials

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

MonoBlock for 40 x 17 mm Vials

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

MonoBlock for 40 x 15 mm Vials

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

MonoBlock for 40 x 12 mm Vials

MonoBlocks are single blocks with multiple wells all of the same size and are ideal for experiments using the same vessel

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 1 x 250 ml Flask

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 3 x 25 mm Tubes

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 3 x 24 mm Tubes

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 9 x 16 mm Tubes

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 9 x 12 mm Tubes

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 3 x 28 mm Vials

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 3 x 21 mm Vials

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 7 x 17 mm Vials

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 9 x 15 mm Vials

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

PolyBlock for 9 x 12 mm Vials

PolyBlocks are smaller segments (5 per StarFish) which can be mixed to accommodate any combination of vessel; allowing the use of different vessel types and sizes at the same time.

With StarFish attachments you can turn your magnetic stirrer into an efficiency-increasing reaction station for up to 45 samples simultaneously. Upgrade your magnetic stirrer to a product with multiple capabilities; starting from simple heating and mixing tasks including chemical reactions, concentrations, extractions under vacuum and by providing protective gas. No special glassware purchase required - use your own glassware and cherry-pick the appropriate attachments for your applications. StarFish workstations are ideal for soxhlet applications.

5-way clamp Velcro

The StarFish clamp allows you to hold glassware of virtually any size and comes with a choice of Silicone rubber or Velcro support straps. Each clamp features 5 telescopic arms which can be extended and locked in place to suit your needs.

5-way clamp Silicone strap and handle

The StarFish clamp allows you to hold glassware of virtually any size and comes with a choice of Silicone rubber or Velcro support straps. Each clamp features 5 telescopic arms which can be extended and locked in place to suit your needs.

Water Distribution Manifold

Allows coolant from a single source to be evenly distributed to up to five condensers and then recombines the flow to one outlet pipe. Two manifolds are used in each set-up, one to distribute water to the condensers and one to collect coolant for recirculation or to drain. Connectors feature leak-proof shut-off valves in place to suit your needs.

Gas/Vacuum Distribution Manifold

Allows gas or vacuum from a single source to be evenly distributed to up to five positions or vessels (does not control or regulate gas/vacuum flow). Connectors feature leak-proof shut-off valves.

Support Rod, 650 mm

Support Split Rod 650 mm

Silicone Protective Cover for MR Hei-Standard

Replaceable cover against splashes and dripping water