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Thermistors for Gas Boilers

Thermistor

What is a Thermistor / NTC Sensor ?

The Thermistor is an electrical component whose internal resistance changes with temperature variation with one end exposed to the heat source, and the other is the electrical connection. The Thermistor can be used in several places around the boiler but are generally located on the flow or return pipes in the lower part of the boiler, inside the combustion chamber or attached to the heat exchanger outlet pipes. Some boilers have a flow and return thermistor, some also have a thermistor on the domestic hot water outlet pipe. The Thermistor can also be found checking the flue gas temperature on modern condensing boilers. Other names for the Thermistor are Temperature sensor or Negative Temperature Coefficient (NTC) Sensor. They can come as either a clip on sensor, push fit sensor or a screw fit sensor.

397 results
1117662 Baxi 5108265 Temperature Sensor 5108265, 247394, 248068, 248655 5107843
This part fits...
£14.23(inc VAT)
1531738 Vokera 10027352 Thermistor 7352 8484 7022 7099003 H40335 H77940
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£11.38(inc VAT)
1118068 Baxi 5114725 Ntc Sensor Dhw 5114725 H29101
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£8.65(inc VAT)
1250324 Alpha 1.021762 Temperature Sensor (Ntc) 1.021762 798413
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£14.35(inc VAT)
1177991 Ideal 170996 Dhw Thermistor Kit Isar 170996 E69403
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£31.45(inc VAT)
1530769 Vokera 20003819 Ntc Sensor 10026273 H40269
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£12.89(inc VAT)
1337421 Glowworm 0020079644 Ch Pressure Sensor Was 0020014190 0020014190 0020079644 0020038275 H42772
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£23.00(inc VAT)
1331457 Glowworm 2000801911 System Pressure Sensor E83997
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£36.44(inc VAT)
1531737 Vokera 10027351 Thermistor 10027351 10025061 H40261
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£6.12(inc VAT)
1018037 Worcester 87161423020 Ntc/Thermister Dhw 87161423020, E82400
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£10.44(inc VAT)
1013033 Worcester 87145000810 Dhw Temp Sensor 87145000810, H02538
This part fits...
£7.57(inc VAT)
1374434 Vaillant 252805 Ntc-Sensor 252805 263931
This part fits...
£22.33(inc VAT)
397 results

 

What can Direct Heating Spares do for me?

At Direct Heating Spares, as a leading supplier of boiler spares and plumbing supplies in the UK, we strive to help you restore your central heating, boiler or system to full working order by providing high quality parts, produced by the manufacturers, along with fantastic customer services and prompt delivery of spares across the UK. If this is the part your boiler requires, please take your time and locate your exact boiler using the table and filters provided. Our UK based offices contain collectively over 200 years of spares distribution and boiler spares experience. Please feel free to contact us either by phone or e-mail using the details provided at the bottom of this web page. We have a large selection of boiler spares and materials and can help you find part numbers, availability and prices for delivery across the UK. Our distribution warehouse holds over twenty thousand different boiler spares in stock and we have a dedicated purchasing team that ensures our stock levels are maintained to cut down on lead times from ordering direct to any location in the UK. We offer various delivery options and can also provide a next day, pre 12 delivery to most parts of the UK. If the thermistor you require is not listed on our website or it is showing as out of stock, please feel free to give our UK based sales team a call and we can advise the total price and how soon we can obtain the thermistor you require.