• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Which fiberglass filter for HVAC?

Blain said:
What does that mean? I wouldn't use the fiberglass filters, due to their low filtration capabilities.
Click to expand...

My motor went bad after a couple of years, the HVAC guy said it's because I was using a pleated filter. Me being stubborn refused to use the fiberglass ones they suggested. So earlier this week, my unit wasn't able to keep the house cool. Thermostat set to 73 but the house was hovering around 77. The next day I inserted the fiberglass ones I had laying around and the unit was able to keep my house cool at 73-74.

We had a heatwave over the weekend when this all happened.
 
You might consider buying two custom washable filters (one in and the other cleaned, ready for use).
I've used two BoAir filters for several years, and really like them. They are easy to clean and built to the exact size I need (no sloppy filters anymore).
If you are locked into the idea of standard fiberglass filters, at least charge them before installation with something like WEB Filter Charger.
 
I question the value of trying to use the HVAC system for any kind of air filtration. Open the windows on a nice day, which you'd do 24/7 if it was always 67-77 degrees outside. How much air filtration do you get then? None.
 
Blain said:
Better to trap dust & dirt in a disposable filter rather than your HVAC A-coil.
Click to expand...

Yep, in a residential system its main function is to protect the coil and ductwork from dust and debris. You can help keep dust down in your home by using a higher filtration level media, but most residential units don't have enough static pressure in the fan to run anything beyond a MERV 5 or so without restricting the airflow and possibly damaging the fan motor.
 
Unless you use thicker media. I've been using 5" pleated filters, Merv 11 for two decades now. The blower was still working fine when I replaced my furnace this year after 23 years of use.

Of course it will require adding the filter box, that any decent installer would have offered when is was installed.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top