Gas and Oil Home Heating Furnaces - Humidifier - Furnace gap

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vkaura
12-21-08, 05:24 AM
The humidifier in our house does not appear to be properly attached to the furnace. There is a gap (1/2 inch going to zero) on one side between the humidifier and the furnace/ductwork wall. When the furnace is running hot air blows out of this gap.

My question is this: how to close this gap if reinstalling is not an option. Is it ok to use foil duct tape and cover the gap good or should I use mastic?

Thanks
Vik

Grady
12-21-08, 08:07 AM
As long as the mounting is good & solid, you can use whatever will work to close the gap. Mastic over mesh is probably going to be your best bet.