Forced-air Furnaces: The What, Why, and How

Let's not get too heated, this is after an inflammable subject. Frankly it's exhausting, but we gotta do it. We gotta explain how furnaces work! And soon, we'll talk about what will replace them. I'll try to remember to put a link here when that time comes!

Links!
Technology Connextras (the second channel that stuff goes on sometimes):
https://www.youtube.com/channel/UClRwC5Vc8HrB6vGx6Ti-lhA

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