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Experience with Whole House HEPA Filters on a Furnace?

Our furnace is dead! The main controller circuit board is shot and the blower motor is on it's last leg. It's 20 years old, so it's had a good run!

As we are looking at a replacement, I'm considering adding a HEPA filter. The one that they use is an extra box that goes on top of the furnace and takes an April Air filter. He didn't put the model number on the estimate, so I'm having trouble figuring out which product it is.

Anyone have experience with HEPA filters on their furnace? We only have forced air heat – no A/C. So, this would only help me in the winter when the heat is running. Trying to figure out if the extra cost bump is worthwhile.

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  • K8sMom2002

    I don't have any experience … but I'm thinking that would be a great add-on. We have a heat pump, so we have both forced air heat and cool. 

  • Jen

    Just asked dh since he's a mechanical engineer.  He said that you should still see benefits from the furnace filter in the summer if you have a whole house fan that circulates air (not the AC).

  • Kathy P

    We don't run the fan at all in the summer. Usually the windows are wideopen all the time! That's one reason I'm also considering just per roomair purifiers.

  • Kathy P

    It's being installed now! I decided to just go ahead with it. The guy cut the price and "threw it in".I'm hiding in the other end of the house to avoid and dust being kicked up while they are working. And when I went to the kitchen, I could smell fumes from epoxy or caulk or something.

  • Kathy P

    It has not….and I'm enjoying the warmth! And it's so much quieter too. Time will tell on whether the filter helps.

  • Jen

    Either way, the warmth is nice.  I tell you, our bedroom at our new place does not get as warm as our bedroom did at the old place.  I'm putting dh to work on trouble shooting that one.  I think he closed some vents to force more air into our room.  I think part of the issue is that our new bedroom is a lot bigger, so it gets a bit drafty in there.  Maybe it will get warmer once we get some more furniture in there.

  • K8sMom2002

     Kathy P on getting heat again! I'm glad it's warmer and working, and do let me know how the HEPA filter works. I'm thinking maybe we should add that in on the next go 'round.

  • Jen

    Any updates on the HEPA filter?  Any feedback after another 2 months with it?

  • Laura Jeanne

    Currently looking into installing a whole house air purification sytem on our HVAC; any updates on this?  What has your experience been?  Thanks.

  • Kathy P

    I think it's been helping. I can tell that there is less dust settling on things. Now, my allergies have still been bad, but it's been more to outdoor stuff. I've been wondering is we should have also had the ducts cleaned – we did not.

  • K8sMom2002

    Laura Jeanne, what sort of purification systems are available in your area?  I'm wondering about this, too — especially if it works to reduce dust like in Kathy P's experience.

    Kathy P, here's a link from the EPA about …

  • K8sMom2002

    Kathy P, how does it work? It's not an ionizing filter, is it? I know those are harder on the lungs. But I'm just wondering how it would be an improvement over my current filter in my HVAC system. I use the Filtrete™ Ultra Allergen Healthy Living 1500 (or the 2200 if I can find it) Filter that's  in my HVAC system.