All orders accepted by 3pm Monday to Thursday are dispatched the same day and are normally delivered within 24 hours.

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Ideal 170917 Thermister Boiler Control Kit

£12.72 ex. VAT

The thermistor decreases the circuit resistance as it gets hotter. The electronic control sends a current to the thermistor and can tell whether a decrease or increase in heat is needed by the relative resistance in the thermistor.

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