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| What on earth is this? |
A: A gravity furnace
While out looking at new homes, we came across this. A gravity furnace. It is huge. Seriously took up the entire basement of this home. The furnace does not have forced air or any sort of fan. Instead it heats the air with what looks like a large bunsen burner and allows the hot (lighter air) to rise naturally. After talking with our real estate agent and a family who once had one, we learned that these gravity furnaces are silent, but not energy efficient.
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