I have a very frustrating problem that I hope someone here can help me resolve. I have a split system HVAC that requires a filter in the air handler. The filter size is 16X20X1. I noticed that the filter is a bit too small and, when the fan is running, the filter flops up toward the coil. It seems like the metal flaps that hold the filter in place are a little too large for my current size but too small for the next size up. As a result the coil gets very dirty and I’m told that this can shorten the life of the unit.
I purchased one of those permanent, washable filters that was custom made for my unit and it fits perfectly. The problem is that I own two pets that shed a lot and it is nearly impossible to wash out the fur from this filter. I’d like to go back to the disposable filters but am not sure how to solve this problem. One HVAC company told me they could place filter holders on all my intakes at a cost of around $300, plus I will need to change 3 filters instead of just one.
Does anyone know how to solve this problem? Am I better off with a dirty washable filter than a disposable filter that doesn’t stay in place? Is there a way to buy customized disposable filters? Is there a way to keep the filter in place even if it is a little small? Any suggestions are appreciated.