The Coleman 2022 heat pump is ducted throughout the trailer. Setting the rear thermostat on electric heat, auto fan should start the unit and heat the rig. The front won't be as warm due to the distance the air has to travel. I'm not sure what vents you're referring to. Combined with your fireplace and ceiling fan you should have plenty of warm air flow.
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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