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slackeribew's avatar
slackeribew
Explorer
Dec 07, 2015

return air on fifth wheel

My 2006 keystone montana has slots cut out under the bottom steps which i assume is for return air it goes into the compartments. When running the furnace say it's in the 30's. I believe i get a fair amount of cool air from the slots as i do with floor ducts say 70//30. Should i put a light bulb in the compartment, close a few of the slots, and i don't think i should close them up. Any ideas? Thanks
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Dec 07, 2015
    RV furnace recirculates inside air.

    Furnace sucks air from interior back thru the 'return' then warms it by passing it thru the furnace heat exchanger and discharging it thru the floor registers

    Cold air return becomes warm air return as interior of rv warms up until t-stat set point is met.


    DO not obstruct/restrict return air flow....that will cause furnace to overheat from lack of proper air flow and it will trip

    Light bulb....never heard of that, don't see need as interior air being recirculated it will warm.
    Course it won't hurt anything. Just don't see the real benefit.

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