Where is my filter located in my Furnace?
In general the furnace filter is located inside
the blower compartment.
This will vary with the installation of the
Furnace. The HVAC (Heating Ventilating and Air Conditioning)
contractor can install an Air clean Box, or cut a slot in the
return air duct. There is a possibility that you're Furnace or
Air Handle with have filters in the central return Grill. You do
not want to install in both places. When changing the filters in
the furnace compartment, ALWAYS turn the power
off at the main circuit breaker.
Up flow Furnace (air moving upward) Filter is
located in the blower compartment (bottom door) adjacent to the
cold air return. You have to remove both the top door and then
the bottom door. Make sure that when you re-install the bottom
door, it goes over the furnace frame so that it engages the
safety switch. If not the furnace will not run.
Down flow Furnace. (air moving in downward
direction) Filter is located in the upper blower compartment.
Most furnaces will have a V shape filter system; the system will
take 2 filters. The filters go up into the plenum in a V shape.
Make sure that when you re-install the top door, it goes over
the furnace frame so it engages the safety switch. If not the
furnace will not run.
Horizontal Furnace. Most Horizontal Furnaces
will have a slide in Furnace rack, built into the furnace.
Air Handlers. Most Air Handlers will have a
built in furnace filter rack in the unit. Note
most Air Handles will have central returns, which have built in
filter grills to accommodate a filter. Check to see that you DO
NOT HAVE a filter in the Air Handle and the filter grill. This
will cause reduced air flow and higher utility bills.
Note: Many customers us plastic deflectors to
keep their drapes away from the floor vent and keep the warm air
going across the floor. (Remember) warm air raises and cold air
fall. REMOVE in the cooling season to have better cooling and
lower utility bills.
