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pbx2_gw

Remove air return filters? & new construction when to replace?

pbx2_gw
10 years ago

We just moved into a new house back in April & really didn't get any training from the HVAC contractor on the Trane Heat Pump they put in.

The HVAC air handler is installed under the conditioned crawl space - which I am ashamed to say I haven't gotten under to look at - but supposedly has a 5" media filter.

Also noticed yesterday that I have 2 air returns on the main level that have 1" filters in them. I suspect there is another one upstairs somewhere...so maybe 3 altogether.

Now it's been 3.5 months since we moved in & so we are at the worry wart stage - QUESTIONS:

1) Trane HVAC contractor said I can remove all three air return filters (or get cheapies) since these are limiting the overall handler's effectiveness & the 5" Media filter already in place - true?

2) If #1 is true - Can I remove just a couple & leave the 3rd?

3) How often do I need to change the 5" Media filter on the air handler? I suspect it depends but rule of thumb would be every 6 months?

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