In response to
"Our furnace is making a sound on occation that's very similar to a belt on a car. We'll call them in the morning, but otherwise, I hope we don't die. -- nm"
by
Qale
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there's belt to the fan's motor, so yeah it could be the same thing. Of course the repair guy will explain to you that your 20 yo heater is a waste..
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ful gas burning ineffecient converter of energy from the burn chamber to the exchanger and if you spend 2 or 3k for a new high efficency unit you'll save enough in the first year to pay for it. of course after paying for a new heater our bills were the same.
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