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Why does forced hot air furnace blow cold air before it blows warm?
Wiki User
∙ 14y ago
The reason for this is because the furnace has not warmed up yet. The blower kicks on the same time the burner lights. However the furnace does not go into "high fire" until after a period of about 10 min. After this stage is when you will really begin to feel the warm air.
Wiki User
∙ 14y ago
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