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  1. #1
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    Question Momentum 350M Furnace issues

    I just bought a 2016 Momentum 350M and just turned on furnace for the first time. I feel heat in the bedroom and bath but not in the kitchen or living room. Should the vent in the ceiling move air? And also how do I get the Dometic heater to work in the bedroom?

  2. #2
    Site Team WhittleBurner's Avatar
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    I don't have a Momentum but heat does not come out of the ceiling vents in GD 5th wheels unless it's coming from a heat pump on the AC.
    The furnace is ducted and comes out the bottom of kitchen island, a vent in the bathroom comes out of the sink cabinet on ours and the only floor vent in the bedroom.

    You might have to remove the basement wall panel to check if any of the full vents have fallen off or are crushed
    Marcy & Gary
    2014 Grand Design - Reflection 303RLS
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    2015 GMC Denali 3500 - Retired
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  3. #3
    Rolling Along
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    Quote Originally Posted by Rob Hall View Post
    I just bought a 2016 Momentum 350M and just turned on furnace for the first time. I feel heat in the bedroom and bath but not in the kitchen or living room. Should the vent in the ceiling move air? And also how do I get the Dometic heater to work in the bedroom?
    Furnace is ducted alone for gas heat. You should have 4 vents. Bedroom, bathroom, kitchen, and garage (5 if storage is heated). It only registers off main climate zone. Not the best of designs.

    Sent from my SM-N986U using Tapatalk

  4. #4
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    Hi Rob I have a 395ms and discovered the metal duct under the kitchen island to be installed backwards and blocking off the heat duct coming up through the floor. When the heater was on the hot air was coming out under the sink. Pull the black vent covers and inspect the metal duct to see if it was installed backwards.

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