Viessmann Thermistors
The thermistor decreases the circuit resistance as the temperature increases. The electronic control board sends a current to the thermistor and can tell whether an increase or decrease in heat is needed by the resistance provided by the thermistor.
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£82.80 inc VAT
In stock - Next day delivery available
Free UK Delivery £143.74 inc VAT
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Free UK Delivery £140.40 inc VAT
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