a heat exchanger?
The heat exchanger is the metal wall or tubing that is heated up
when the burners are ignited. The inside of the heat exchanger
allows the toxic flue gases produced from the burners to exhaust
out through the furnace flue. The outside of the heat exchanger
is where the cold air passes over, becomes warmed, and is blown
throughout the ductwork of the home. The heat exchanger is the
only wall separating the toxic flue gases from the supply air.
If a crack develops in the heat exchanger, there is a potential
for carbon monoxide gas to leak over to the supply side and be
blown throughout your rooms. Carbon monoxide gas is odorless.
The human senses will not detect its presence. However, there
are signs. Light-headedness, nausea, and flue-like symptoms are
all signs of CO gas leaking into your home. On an extreme case,
if the crack in your furnace is bad enough and the conditions
are right, you and your family may enter into a permanent sleep.
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