Block Combustion Air Intake for Summer?

Old 06-27-19, 07:25 PM
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Block Combustion Air Intake for Summer?

Would it be ok to seal the outside air intake pipe leading into the furnace? Our wet spring weather has created allot of bugs so far this summer and I would like to keep the air intake pipe clean as possissible. I noticed a very slight amount of air being pulled into the pipe while the air condidtioning is running but I not sure if this is by design.
Old 06-27-19, 08:40 PM
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I would not seal it, but you could put screen over it, just be sure it doesn't get covered with lint or cotton or spider webs, etc that could block air flow.

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