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upsidedown_Char's avatar
upsidedown_Char
Explorer
Nov 15, 2016

hot floors

Our new MH has two AC units. Both work with ceiling ducts and I see ducts on the floor which I suspect are returns. The first cold night, I smelled something like hot plastic. I ignored it believing that the new system will do that for a while.

When I went to bed, I noticed the floors were warm which made me wonder if the vents in the floor were indeed returns. The only way I can figure how the floors get warm is from the ceiling vents which blow sweet warm air. Does this sound like normal operation? Everything was fine the next day so I'm just curious.
  • DrewE's avatar
    DrewE
    Explorer II
    Nov 15, 2016
    korbe wrote:
    My floor vents are for the heating system. My AC return is at the unit.


    x2 on this. Floor vents would usually be furnace vents and blow your sweet warm air. What you're smelling is probably dust or oil residue or similar on the furnace heat exchanger burning off. It can take a bit for it to all clear up, particularly if the furnace is brand new.

    My motorhome is set up with wall vents next to the floor for the furnace, but it's otherwise the same as korbe's.
  • korbe's avatar
    korbe
    Explorer
    Nov 15, 2016
    My floor vents are for the heating system. My AC return is at the unit.

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