Heat-On makes your chemistry safer, cleaner and fasterReplace messy oil baths, heating mantles and avoid spills. Heat-On accepts vials, tubes and flasks from 10 ml to 5 litres. Fits on all leading hotplate brands with a 145 mm Ø top plate; optional adapter plate for 135 mm Ø top platesUnique well design eliminates cracking of flasks.Blocks feature two probe holes for added convenience. Optional and detachable lifting handles. Optional PTFE Safety Covers reduce risk of user touching hot blocks. Solid aluminium blocks provide even heatingLightweight design allows rapid heating. Use up to 260˚C. For vials, tubes and flasks from 10 ml to 5 litres, plus option for Florentine (pear-shaped) flasks.Choice of block finishesFluoropolymer coating gives superb chemical resistance. Anodised finish is durable, lower cost option.Heat-On heats hotter, fasterHeat-up tests have shown Heat-On can boil a 250 ml flask of water in under 11 minutes, faster than an oil bath and faster than other blocks.SaferThe risk of oil fires and injury from hot oil spills, plus the mess and cost associated with the use of oil means that oil baths no longer represent safe working practice in labs. CleanerHeating mantles are expensive, difficult to clean, do not respond well to spills and often create hot spots when heating. GreenerScientists are increasingly turning to specially designed aluminium blocks located on stirring hotplates to heat standard round bottom flasks. Oil baths are messy, dangerous and costly Oil will discolour and degrade with repeated heating and contamination from chemicals, water and general debris. Degradation results in a dangerous lowering of the oil’s flashpoint as well as increased smoking and fumes. Oil should be regularly replaced to maintain a safe working environment. Disposal of oil waste must be done in an environmentally and safe way, with associated costs. For a comparison of the cost of using a Heat-On Blocks and Oil Baths over a 1 and 3 year period please see “Downloadable Resources” below to download the Heat-On V Oil Bath Comparison. Key features Technical information Videos The range Downloadable resources Case studies Blog Lightweight design enables rapid safe heating Up to 260 °C. Uses 30% less energy. Heats water 66% faster Unique well design prevents flask cracking Unlike many other inferior blocks, Heat-On will not crack your flask when cooling Over 50 styles and sizes to choose from including Florentine flasks Accepts tubes and flasks. 1 ml to 5 litres Heat-On Multi-well Block Accepts two 50 ml or 100 ml flasks, or one 150 ml flask Fits all leading hotplate brands Suitable for a 145 mm ø top plates. Optional adapter for 135 mm ø top plates PTFE safety covers reduce the risk of burns Reduces surface temp. by up to 50%. Reduces energy consumption by 15%. Available for the most popular Heat-On sizes Fluoropolymer coating Superb chemical resistance. Easy to clean. Speeds up heating times Two temperature probe holes Accept 3 mm ø probe Anodised finish Heat-On blocks are also available with a lower cost anodised finish if preferred Square hotplate adapter Allows Heat-On to sit on a square top plate up to 200 x 200 mm Data: Heat-On Heat-up Summary The following data is a summary of time taken for Heat-On to boil various volumes of water. The data was compiled using a Carousel Stirring Hotplate set at its maximum operating temperature. Flask Volume (ml) Water Volume (ml) Hotplate Temperature ゚C Contents time to reach boiling 10 6 310 4 min 48 sec 25 15 310 5 min 54 sec 50 30 310 7 min 12 sec 100 60 310 7 min 54 sec 150 100 310 10 min 36 sec 250 150 310 9 min 48 sec 500 300 310 13 min 30 sec 1000 600 310 17 min 06 sec 2000 1200 310 26 min 18 sec 3000 2000 310 39 min 36 sec 5000 3000 310 51 min 00 sec Fluoropolymer range RR61031 Heat-On 100ml Block with Flask Sidearm Cutouts RR61032 Heat-On 200ml Florentine Block RR61040 Heat-On 250ml Block RR61041 Heat-On 250ml Block with Flask Sidearm Cutouts RR61042 Heat-On 300ml Florentine Block RR61045 Heat-On 500ml Block RR61046 Heat-On 500ml Florentine Block RR61050 Heat-On 1 Litre Block RR61051 Heat-On 1 Litre Florentine Block RR61055 Heat-On 2 Litre Block RR61056 Heat-On 2 Litre Florentine Block RR61060 Heat-On 3 Litre Block RR61061 Heat-On 4 Litre Block RR61063 Heat-On 5 Litre Block Anodised range RR62031 Heat-On 100ml Block with Flask Sidearm Cutouts RR62032 Heat-On 200ml Florentine Block RR62040 Heat-On 250ml Block RR62041 Heat-On 250ml Block with Flask Sidearm Cutouts RR62042 Heat-On 300ml Florentine Block RR62045 Heat-On 500ml Block RR62046 Heat-On 500ml Florentine Block RR62050 Heat-On 1 Litre Block RR62051 Heat-On 1 Litre Florentine Block RR62055 Heat-On 2 Litre Block RR62056 Heat-On 2 Litre Florentine Block RR62060 Heat-On 3 Litre Block RR62061 Heat-On 4 Litre Block RR62063 Heat-On 5 Litre Block Heat-On Accessories RR61080 Heat-On Safety Lifting Handles (one pair) RR61085 Heat-On Adapter for 135mm Hotplates (IKA etc.) RR61087 Heat-On Adapter Plate for Square Hotplates Multi-well Fluoropolymer Range RR61005 Heat-On Multi-well Holder RR63005 PTFE Safety Cover for Multi-well Holder RR61010 Heat-On 10ml Insert RR61015 Heat-On 25ml Insert RR61020 Heat-On 50ml Insert RR61025 Heat-On 100ml Insert RR61030 Heat-On 150ml Insert RR61065 Heat-On Insert for 8 x 16mm Tubes RR61066 Heat-On Insert for 6 x 17mm Biotage Microwave Tubes RR61070 Heat-On Insert for 4 x 20mm Tubes RR61075 Heat-On Insert for 4 x 24mm Tubes RR61076 Heat-On Insert for 2 x 1inch Tubes RR61077 Heat-On Insert for 3 x 28mm Biotage Microwave Tubes Multi-well Fluoropolymer Systems RR61000 Heat-On Multi-well Block System Consisting of the following: 1 x RR61005 Heat-On Multi-well Holder 2 x RR61015 Heat-On 25ml Insert 2 x RR61020 Heat-On 50ml Insert 2 x RR61025 Heat-On 100ml Insert 1 x RR61085 Heat-On Adapter for 135mm Hotplates (IKA etc) RR61001 Heat-On Basic Multi-well Block System Consisting of the following: 1 x RR61005 Heat-On Multi-well Holder 1 x RR61015 Heat-On 25ml Insert 1 x RR61020 Heat-On 50ml Insert 1 x RR61025 Heat-On 100ml Insert 1 x RR61085 Heat-On Adapter for 135mm Hotplates (IKA etc) Multi-well Anodised Range RR62005 Heat-On Multi-well Holder RR63005 PTFE Safety Cover for Multi-well Holder RR62010 Heat-On 10ml Insert RR62015 Heat-On 25ml Insert RR62020 Heat-On 50ml Insert RR62025 Heat-On 100ml Insert RR62030 Heat-On 150ml Insert RR62065 Heat-On Insert for 8 x 16mm Tubes RR62070 Heat-On Insert for 4 x 20mm Tubes RR62075 Heat-On Insert for 4 x 24mm Tubes Multi-well Anodised Systems RR62000 Heat-On Multi-well Block System Consisting of the following: 1 x RR62005 Heat-On Multi-well Holder 2 x RR62015 Heat-On 25ml Insert 2 x RR62020 Heat-On 50ml Insert 2 x RR62025 Heat-On 100ml Insert 1 x RR61085 Heat-On Adapter for 135mm Hotplates (IKA etc) RR62001 Heat-On Basic Multi-well Block System Consisting of the following: 1 x RR62005 Heat-On Multi-well Holder 1 x RR62015 Heat-On 25ml Insert 1 x RR62020 Heat-On 50ml Insert 1 x RR62025 Heat-On 100ml Insert 1 x RR61085 Heat-On Adapter for 135mm Hotplates (IKA etc) Heat-On Multi-well Accessories RR61080 Heat-On Safety Lifting Handles (one pair) RR61085 Heat-On Adapter for 135mm Hotplates (IKA etc.) RR61087 Heat-On Adapter Plate for Square Hotplates Florentine Fluoropolymer Blocks RR61032 Heat-On 200ml Florentine Block RR61042 Heat-On 300ml Florentine Block RR61046 Heat-On 500ml Florentine Block RR61051 Heat-On 1 Litre Florentine Block RR61056 Heat-On 2 Litre Florentine Block Florentine Anodised Blocks RR62032 Heat-On 200ml Florentine Block RR62042 Heat-On 300ml Florentine Block RR62046 Heat-On 500ml Florentine Block RR62051 Heat-On 1 Litre Florentine Block RR62056 Heat-On 2 Litre Florentine Block Heat-On PTFE Safety Covers RR63005 PTFE Safety Cover for Heat-On Multi-Well Holder RR63035 PTFE Safety Cover for Heat-On 100ml Block RR63040 PTFE Safety Cover for Heat-On 200-300ml Block RR63045 PTFE Safety Cover for Heat-On 500ml Block RR63050 PTFE Safety Cover for Heat-On 1 Litre Block Click to download these resources Heat-On Block System Brochure Find Out More Heat-On Block Instructions Find Out More Heat-On Vacuum Desiccator Instructions Find Out More Heat-On vs. Oil Bath comparison document Find Out More Multi-Scale Synthesis Workstation Application Bulletin Find Out More Heat-On Application Bulletin Find Out More Oxford Uni trial – oil bath vs. Heat-On Data Find Out More Improving safety with Heat-On and Findenser Find Out More Heat-On replaces unsafe oil baths at a leading Australian University Find Out More Radleys Heat-On saves the planet! Find Out More Safer working practices in OLED factory using Heat-On Blocks Find Out More Sustainability in Academic Labs: Simple Tools for Green Benchtop Chemistry Find Out More Heat-On heats hotter, fasterHeat-up tests have shown Heat-On can boil a 250 ml flask of water in under 11 minutes, faster than an oil bath and faster than other blocks. Not all block designs are the sameAnother controlled test showed that a 2000 ml Heat-On block and flask, containing 1000 ml flask of water boiled 66% faster than the leading competitor. Save energy and moneyHeat-On is energy-efficient – using 30% less energy than the leading competitor, when boiling water over a 7 hour period Heat-On Fluoropolymer BlocksFluoropolymer coating gives superb chemical resistance These popular Heat-On blocks have an innovative fluoropolymer coating that: Offers outstanding chemical resistance to most solvents, acids and alkalis Extends the product life Is easy-to-clean Reduces heat-up time Heat-On Anodised BlocksAnodised Blocks Heat-On blocks are available with a lower cost anodised finish if preferred. Offers good resistance to most common lab solvents durable hard anodised surface resists impact damage and is easy to clea Heat-On Multi-well Fluoropolymer and Anodised BlocksThe Multi-well holder is designed to hold one or two inserts for flasks or tubes 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 Multi-tube inserts are available for 16 mm, 17 mm, 20 mm and 24 mm, 28 mm and 1 inch tubes or vials Multi-well holder suitable for 145 mm Ø top plates, with optional adapter plate for 135 mm Ø top plates Holder and inserts available with fluoropolymer coating or anodised finish Heat-On Florentine Fluoropolymer BlocksA range of blocks for Florentine (pear-shaped) flasks are available with a choice of a fluoropolymer coating or anodised finish. Heat-On PTFE Safety CoversReduce the risk of users touching the ‘hot’ Heat-On block and lower energy consumption PTFE Safety Covers slide over the top of your existing Heat-On block, acting as a second skin, the temperature probes and handles can be used as normal. The non-stick PTFE surfaces can be wiped clean with ease. Benefits Reduces the temperature of exposed surfaces by up to 50% PTFE insulation reduces energy consumption by 15% Chemically-resistant PTFE withstands temperatures up to 260 ˚C Prevent accidental spills of solvents on to hot surfaces Fits easily over existing Heat-On Blocks PTFE Covers for all popular Heat-On sizes Improved safetyManufactured from solid PTFE, these Safety Covers provide an insulating barrier between the user and the ‘hot’ Heat-On blocks. Tests show that the temperature difference between the outside surface of the PTFE cover and the Heat-On block can be as much as 100 °C reducing the temperature of exposed surfaces by as much as 50%. Improved efficiencyThe insulating properties of the PTFE Safety Covers mean that up to 15% less energy is required to maintain temperatures for extended periods. For chemical synthesis, process development, evaporation and work-up Browse the range Webinar: Unleash your humble hotplate – it can do so much more than you thinkAre you making the most of your hotplate? Louisa Quegan and Keren Abecassis share their chemistry lab hacks: showing you a range of tools you might not know about. From 1 position to 45 on a single hotplate – with working volumes between 0.5 ml and 2.5 L. Lou and Keren discuss their personal experience in the lab using traditional methods vs. this range of tools. Watch webinar on demand Webinar: Why you might be doing your small-scale process development wrongAre you using round bottom flasks with heating only equipment for your small-scale process development chemistry? Do you find these experiments don’t scale up as well as you would like? Let’s talk about what’s wrong with this traditional set up and what you can do to improve it. Watch webinar on demand Related products Cool-It Bowl – Insulated Bowls Find Out More Carousel Stirring Hotplates Find Out More Findenser Super Air Condenser Find Out More View all products