You actually went from good to bad by using the piece of junk electrostatic filter. They restrict the air to much and can and do cause major damage to the compressor. With the electrostatic you have cut your total BTU output of your system down to around 60% with the very restrictive electrostatic filter. You should have a real contractor come out who is fully knowledgeable in air flow and design. They could install a 4 inch media filter for you and evaluate your whole duct system to make sure it is sized correctly for your application.Originally posted by jedholmes1
I am not well educated on HVAC systems and always used the cheap blue fiber filters until recently. I had know idea they were that bad. I am now using the electricstatically charged filter. None of the service people that I had out to do a routine check on the system in the last 4 years ever explained to me the importance of good filters and now I'm paying the price. The ducts were said to be good and sealed, but then again I'm taking the word of the same people that never told me about the filters either.