If you have the 4" media filter then changing once a year is fine (unless you have some unusual situation in your home). Remember that the filters actually filter better as they become loaded (up to a point, obviously) and the ECM motors in the air handlers are programmed to deliver the same CFM as the filter becomes more loaded. In a previous home, the system monitored the 4" media filter loading via changes in the status pressure (you can do that with ECM motors) and reported back when it needed to be changed. The frequency was typically over a year for a larger home than we have here (in the southeast so the same usage pattern). Mine is still pretty clean after a year.
Quote:
Originally Posted by suesiegel
RE: lasted only 9.5 years
Remember you run your AC or for most of us it is a heat pump all year long. Expected life is about ten years. You will see posts I had a ...... and it lasted 15 years. It is a slow death.
It no longer works as well as it did and it uses more and more electricity
We have a carrier, now four years old. They try to SELL you a biannual service. Once a year is all you need for the warranty. IF, you have the same system as we do, you are supposed to change the filters twice a year. The filters are fairly expensive but you can buy the originals on line for 1/2 to 1/3 less than from the service company.
RE: LENNOX
My friend in boynton beach bought a Lennox about two years ago and he was thrilled at his electric savings. ??? I think he said it was 18 s.e.e r. Not confirmed guesses. At the time his home was built the minimum the builders could put in was 6 seer so I assume that is what he had. If, you look on the unit you have you will see the seer rating is marked. Our carrier is 15 seer.
To his LENNOX. His unit died two days before erma hit.
His repair tec did a diagnosis and said he needed a part.
The nearest one was in Atlanta. I took them 10 days to get the part and have it installed. TEN DAYS WITH NO AC
AND IT IS HOTTER IN BOYNTON BEACH THEN HERE.
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