A thermocouple is a device that is made of two different metals that produce a small charge when heated on one side. This charge activates an electromagnet which opens a valve and stops restricting the flow of gas or water ..
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Technical Specifications
Toilet Cistern CapacityFTW--Supplier Part Number81366700Brand NameCannon
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Stoves, Belling And New World 81366700 Thermocouple Oven 1300Mm