When changing furnace filters many people wonder where the arrow of the filter should point towards.
Air flow gas furnace.
So air flows from your ducts through the filter and into the furnace.
Air is sucked in through the return vents.
Forced air furnaces recirculate air through a home.
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When your furnace s air.
But sometimes you may not know which way the air is flowing.
When your thermostat senses that the surrounding air has gotten too cool it sends a signal to your furnace to turn on and begin pulling in that cool air to be heated up.
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Air starts in your home s rooms.
Which way does furnace air flow.
Your furnace doesn t create air it simply cycles air from one place to another throughout your home.
Temperature rise calculating cfm in a gas furnace jim johnson february 14 2019 jim s blog in previous segments we ve discussed the idea that there are four areas of operation to consider when evaluating the performance of fuel burning equipment and number one on our list was proper air flow through the duct system.
The two stage high efficiency furnaces in this series have afue ratings of up to 95 percent and feature a variable speed blower aluminum steel heat exchanger and fused low voltage circuit protective elements.
The most common terms used to describe the air flow configuration are.
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If you inspect your new air filter you may see an arrow that says air flow.
Pushing air cool or heated in and pulling spent air back in for another cycle.
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Upflow downflow and horizontal.
The term air flow configuration describes the physical orientation of a furnace relative to the direction in which heated air leaves the furnace and enters the ductwork.
So the air that your furnace heats up actually originates in your home s rooms.
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