Also known as an NTC temperature sensor, they monitor the temperature of the central heating water and also the domestic hot water, by sending a signal to the main printed circuit board which in turn reduces the amount of gas that is being delivered to the burner hence reducing the amount of gas being used and making the boiler more efficient.

Thermostats are safety devices which are fitted to all boilers, they are also referred to as limit stats, control stats and overheat stats. The control thermostat normally sits behind the control knob at the front of the boiler The thermostat is a control on the boiler that enables you to change or set the temperature of your central heating system most of the other thermostats are located inside the boiler and monitor temperature. If excessive temperatures are detected the thermostats turn off the boiler and normally have to be re-set to allow the boiler to work again.

Potterton Pump Overrun Thermostat 404496

Part: 404496

Price: £54.89
Main Boiler Stat 404505

Part: 404505

Price: £25.39
Potterton Sensor 5130291

Part: 5130291

Price: £39.62
Potterton Room Thermostat 5100583

Part: 5100583

Price: £17.00
Baxi 102027 Bermuda WM Thermostat

Part: 102027

Price: £19.20
Vaillant 101384 Temperature Limiter

Part: 101384

Price: £29.81
Glowworm 2000800632 Energy Overheat Thermostat

Part: 2000800632

Price: £31.93
Ideal 075435 Henrad Wickes Thermostat

Part: 075435

Price: £36.53
Chaffoteaux 990405 Contact Ntc Probe

Part: 990405

Price: £16.26
Glowworm 2000800014 Economy Overheat Thermostat

Part: 2000800014

Price: £35.02
Potterton Sensor 248497

Part: 248497

Price: £11.18
Saunier Duval S202518 Thermostat

Part: S202518

Price: £57.96
Potterton 720747101 Thermistors (Thermodisc)

Part: 720747101

Price: £16.93
Saunier Duval Over heat stat 2000800745

Part: 2000800745

Price: £14.82
Saunier Duval Thermistor (Ch) 2000801005

Part: 2000801005

Price: £13.40
Worcester Temperature Sensor 87145000780

Part: 87145000780

Price: £46.22
Main Solo Wm Thermostat CL6P0151

Part: CL6P0151

Price: £25.41
Ideal T/Stat Pocket Ass Classic 137663

Part: 137663

Price: £23.36
Ferroli 39800180 Combi Optima Thermostat

Part: 39800180

Price: £7.49
Alpha 1.023071 CD Flue Overheat Thermostat

Part: 1.023071

Price: £22.42
Potterton Promax Thermostat 240670

Part: 7671970

Price: £12.35
Baxi CL6P0151 Solo Wm Thermostat

Part: CL6P0151

Price: £23.10
Ideal Sensor 172924

Part: 172924

Price: £40.14
Ideal Limit Thermostat 155791

Part: 155791

Price: £45.35
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