How Does a Furnace Work?
If you have ever been cold, you know the value your furnace brings. When it fails to produce the heat you expect, you begin paying attention to how it works and what might be wrong. The process a furnace uses to heat your space is quite simple. Taking the time to gain a basic understanding helps you keep it working well and find issues when a problem occurs. 4-Step Furnace Process Most modern furnaces use a process called forced air. They operate on the following four basic principles. Step 1: Produce the heat. A furnace produces heat by burning a...
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