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Its because the fan starts immediately and the burners kick in second later. When the heat exchanger engages then the system warms and the fan system starts to pick up on the hot air
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∙ 9y ago
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Why is my furnace blowing cold air?
What type of furnace do you have?electric
Ruud furnace only blows cold air no heat?
ruud furnace only blows cold air, no heat
Why is my furnace only blowing cold air?
What type of furnace do you have?electric
Why a cold air return is needed in a furnace?
A cold air return is similar to a return air grille, which is needed for air to travel to the furnace to be filtered, heated OR cooled and then recirculated.
What is wrong if a Ruud furnace has cold air coming out of the furnace filter area?
Is there a flame in the furnace. Precisely where is this air coming from and how strong is it?
Do you need a cold air return on your furnace?
YES! If you do not have a cold air return on your furnace, you will have much higher heating bills as you will not be circulating the cold air from your home back to the furmace to be heated again.
Why does the blower take 2 minutes to start on forced air furnace?
There is a delay on the fan to allow the furnace to get hot so as not to blow cold air into the home at start up. There is also an `OFF` delay, where the fan runs for a minute or so after the flame shuts off. This is to cool down the furnace.
Where is air filter located on central ac?
it's the same as the furnace filter. the air conditioner runs through the furnace to push he cold air. change your furnace filter and you are changing the air filter on the air conditioner
What is the purpose of cold air return in a house?
The air moving away from the furnace has to be replaced.
Should you open cold air returns?
Yes. They are there to draw the air back into the furnace that blows out of your heat/cooling vents. They help create air circulation and clean the air that is "returned" to the furnace and passes thru the furnace filter.
Does not having a cold air return in your home cause health issues?
Probably not. The issue is that your furnace needs several cold air returns thru the house to work efficiently and avoid damage to the furnace.
Why does a gas furnace only blow cold air?
Because you set it that way
