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jimthemosaicguy · 10-16-2018, 04:41 AM

I have similar air returns and noticed heat coming out even the i was running the a/c. Then i figured out it was happening when I ran the rooftop vent in the kitchen. I didn’t block them off because they are there for a reason. I’ve just tried to minimize use of the roof vent.

Also, you might check the furnace manual cause I think there is a requirement about the size of return air vents needed based on the furnace capacity.

10-16-2018, 04:41 AM	#14
jimthemosaicguy Member Join Date: Oct 2016 Location: Carrollton Posts: 74	Basement vents to interior I have similar air returns and noticed heat coming out even the i was running the a/c. Then i figured out it was happening when I ran the rooftop vent in the kitchen. I didn’t block them off because they are there for a reason. I’ve just tried to minimize use of the roof vent. Also, you might check the furnace manual cause I think there is a requirement about the size of return air vents needed based on the furnace capacity.