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1. how do i know what type of furnace air filter i have? 2. how do i replace the one that i have?
QUESTION:1. how do i know what type of furnace air filter i have? 2. how do i replace the one that i have?
ANSWER: first-the filter will be at the area of the inlet-that will be a large grill (usually) or where the a/c is. it will be in the front of the a/c or under it. they are placed differently but ALWAYS at the a/c unit in the house. when you find the a/c unit and the filter you determine what filter you need by measuring the old filter. you measure the length and the width. that's the size you need. as for type-that's up to you they should all fit. they go from cheap ($1-2) to units you clean and reuse that can cost up to $100.
how often it's changed/cleaned depends on your particular circumstances. if you have pets-then you will need to clean/change more frequently. general rule-if you have a long haired pet then every one to two weeks. if not then every month. when in doubt compare to a new one. hold the old one up to the light and then compare it to the new one held up to the light.
you can clean the cleanable ones with a hose or in the shower(if you have a hand held sprayer). if you live in an apartment then find out who is responsible for changing the filter. the primary purpose for changing the filter is to reduce the load/strain on the compressor and, thereby, reduce the electric bill. I haven't lived in an apartment for 35 years or so so I,m sorta behind the curve on that.
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