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  1. #1
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    No filter for heater

    Does anyone find it odd that there is no filtration on the heating system in RV's?
    2021 Grand Design Solitude S Class 3540 GK-R
    2021 Ford Super Duty Crew Cab 4X4 DRW 6.7 LWB F350
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  2. #2
    Site Sponsor JCR GD's Avatar
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    Yes, but it would be a PIA to get to it due to the way the return air routing/system is designed and the location of the furnace.
    Jim (& Sharon)
    2015 GD Momentum 385TH w/ Joy Rider shocks, Sailun 637s & 3" Garage extension, LifeBlue Lithium.
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  3. #3
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    Quote Originally Posted by FreddieD View Post
    Does anyone find it odd that there is no filtration on the heating system in RV's?
    Agreed, My 3540GK-R had 2 open returns, I had to "box" them out and put filtered return grills in, I made sure to have more filter space than the size restriction 2 12"X12" so as not to have flow issues.
    2021 Grand Design Solitude S Class 3540 GK-R
    2021 Ford Super Duty Crew Cab 4X4 DRW 6.7 LWB F350
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  4. #4
    Site Team Second Chance's Avatar
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    RV furnaces are not designed to operate with filters. Home HVAC units usually include AC coils in the air pathway which are much more susceptible to dust accumulation and clogging. RV furnaces only have the heat exchanger which is pretty large-bore.

    Rob
    U.S. Army Retired
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    (Previously in a Reflection 337RLS)
    Full time since 08/2015

  5. #5
    Site Sponsor JCR GD's Avatar
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    Unless they started actually ducting the return air, the return is wide open to the utility space in the basement and draws from everywhere. The only way to filter all the return air is to put a filter on the furnace itself.
    Jim (& Sharon)
    2015 GD Momentum 385TH w/ Joy Rider shocks, Sailun 637s & 3" Garage extension, LifeBlue Lithium.
    2015 Ford F-350 DRW 4x4 Lariat w/ AirLift bags, Titan 65 gal. OEM replacement fuel tank.
    The toys:
    2017 RZR XP 1000 EPS SE
    2018 Fiat Abarth Cabrio

  6. #6
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    Quote Originally Posted by Second Chance View Post
    RV furnaces are not designed to operate with filters. Home HVAC units usually include AC coils in the air pathway which are much more susceptible to dust accumulation and clogging. RV furnaces only have the heat exchanger which is pretty large-bore.

    Rob
    Makes sense, I just don't like circulating the dust and dirt. Did the same thing on a Heritage Glenn, it stayed a lot cleaner...
    2021 Grand Design Solitude S Class 3540 GK-R
    2021 Ford Super Duty Crew Cab 4X4 DRW 6.7 LWB F350
    Curt A 20 Hitch

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