Furnace Filter Slot Cover: Easy Fix to HVAC Air Leak

furnace filter slot   Dan furnace filter slot

The 1 filter slot in a typical furnace return has a pretty poor seal around the filter, which will let a certain amount of air just leak past

I have a house where the furnace has a 25 x 1 wide slot in the air intake where I slide the 16x25x1 filter in from the top  It's important to consider both the nominal and actual size when selecting an air filter for your HVAC system You should measure the filter slot in your system

2 kings of africa slot furnace filter The problem is you might think you are doing everything correctly but if you have Furnace Filter Slot Cover [Easy fix to HVAC Air Leak with One Hour Heating and Air