Furnace Intake Vent

furnace fresh air intake high efficiency exhaust vent filter reduce noise

furnace fresh air intake high efficiency exhaust vent filter reduce noise.

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the connection should be 2 with a rubber coupling then short piece of to i am not sure have picture but this is furnace intake vent loud just installed.
the furnace will then shut down until temperatures in living space cool to a point where t stat calls for heat once again intake vent reduce noise forced air.

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