2019 Idaho Real Estate Blog

Think the filter in your HVAC system is there for filtering the air your breath? think again...

how can a filter be part of durability of the home? the filters main purpose is to filter the air before it blows over the coil. when the coil of your HVAC system become dirty it will not perform correctly or to the correct efficiency. this can drastically reduce air flow and therefore lead to early furnace failure. for long life of your HVAC system you need to maintain clean filters and a clean coil. did you know the service tech should actually wash the coil off when he comes out? neither did I, till recently working with some experts in HVAC design and operation. And what about filter bypass ( air blowing around the filter) this is a huge mistake for HVAC techs to make. if your filter is not in a tight fitting box to reduce filter bypass, you can bet the coil is dirty and the system is in-efficient. My favorite is the barn door some contractors make in the return and then throw the filters in a v shape from the street! What rocket science professor came up with this? or was it a installer trying to quit early and had a huge metal sheer in his truck? the door does not even fit tight enough to not allow your cat to crawl in. demand a proper filter box and a proper filter (8 Merv or better -higher)

what about filtering air? my favorite is the Venmar system www.venmar.ca with heat recovery. this is a ideal system for filtering whole houses with a HEPA filter that filters out 99.97% dust and airborne particles as small as .3 microns ( one human hair is 150 microns). this will reduce allergy symptoms and Asthma, recurring colds, and persistent coughs.

good luck out there!

 
Posted by Tad Duby at 11/2/2007 11:27:00 PM
Comments (2)
Re:filter bypass
Tad, I know someone who has the filters in a V shape. What would be the best way to go about getting this resolved? The company that did the V also services the unit. Does the housing unit need to be re-built?
Posted by on 11/3/2007 4:04 PM
Re:filter bypass
No, the filter would be best in a manafactured box that fits tight on all sides with locking door. Trane, Bryant, etc all make these or some HVAC subs manafacturer their own. I would also suggest a thick media filter (i think they are 5 inches thereabouts) this will be a much better filter, longer lasting, and has better air flow (less restriction-more surface area) than the cheap 1 inch filters you normally see.
Posted by on 11/4/2007 1:34 PM
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Michelle Penick, Build Idaho Client Real Estate Services

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