How Gas Furnace Thermocouples Work | HVAC Heating

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How Gas Furnace Thermocouples Work Boilers and FurnacesHow Gas Furnace Thermocouples Work | Boilers and Furnaces. Furnaces, water heaters, and boilers, especially older gas systems use the standing pilot gas system as an integral part of the furnace’s operation. These systems are best recognized as having a standing flame burning continuously.

It is a basic and time-tested system that provides a reliable way of proving a flame. It employs a thermocouple (some systems can use a thermophile which is a lot of thermocouples embedded in one piece) and a gas valve that has two separate valves inside of it.
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Standing Pilot Gas Furnaces & Heating Safety

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Standing Pilot Gas Furnaces & Heating SafetyStanding Pilot Gas Furnaces & Heating Safety. The picture to the right is the main reason carbon monoxide detectors are needed. CO Detectors are important to have for people who own gas or oil-fired furnaces. The customer had been suffering from severe headaches, nausea, and sinus problems.

I condemned the gas pack furnace and the next day returned to replace all the heat exchanger cells in the furnace. This was the fourth one that winter (2001) that I had found in different furnaces.

How many more are out there in furnaces that no one knows anything about except a slight headache and nausea? This is an excellent reason to have your furnace/heater and heat exchanger inspected immediately. Don’t take any chances, get your carbon monoxide detector and call your local heating and air company for a furnace/heater inspection today. (more…)