air filter
#1
04-05-14, 07:42 PM
air filter
Is this slot where my air filter goes?
imgur: the simple image sharer
I haven't had a filter on for well over a year. Is it possible to see if this has caused any excessive dirt/dust accumulation? I have a 80% Goodman gas furnace.
There's also an 18x18 air return grille on the furnace utility closet. Does that need a filter too? Or would that just filter the air twice?
imgur: the simple image sharer
I haven't had a filter on for well over a year. Is it possible to see if this has caused any excessive dirt/dust accumulation? I have a 80% Goodman gas furnace.
There's also an 18x18 air return grille on the furnace utility closet. Does that need a filter too? Or would that just filter the air twice?
#2
04-05-14, 08:26 PM
Member
You only need one filter, preferably at the furnace.
The blower wheel and a/c coil are probably plugged with dust.
It might be possible to get the coil cleaned in place, but if it has to be pulled, you're looking at a few hundred dollars.
The blower wheel and a/c coil are probably plugged with dust.
It might be possible to get the coil cleaned in place, but if it has to be pulled, you're looking at a few hundred dollars.
#3
04-06-14, 04:08 PM
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The slot shown in the picture would only be a filter rack if the furnace were a downflow model. If the blower is in the top of the furnace it would be a downflow model. My guess is the one in the closet is for combustion air.
#4
04-06-14, 04:42 PM
Member
When the fan is running, does air blow out of the slot? If not, it's for a filter.
Either way, there has to be a filter in the system.
Either way, there has to be a filter in the system.
#7
04-06-14, 05:58 PM
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Botbot,
Turn the furnace on & once the blower comes on, hold a tissue in front of that slot. If the tissue is drawn in, the furnace is a downflow & the slot is probably where the filter should go. On the other hand, if the tissue is blown away from the slot, the furnace is an upflow & the slot is NOT where you should install the filter.
Turn the furnace on & once the blower comes on, hold a tissue in front of that slot. If the tissue is drawn in, the furnace is a downflow & the slot is probably where the filter should go. On the other hand, if the tissue is blown away from the slot, the furnace is an upflow & the slot is NOT where you should install the filter.
#8
04-08-14, 02:21 PM
Member
With registers in the slab I have no doubt that your furnace is a downflow.
It'll definitely need to be serviced after running without a filter - don't just throw a filter in there and call it done.
It'll definitely need to be serviced after running without a filter - don't just throw a filter in there and call it done.
