Dometic DFMDH35121 RV Essential Medium Propane Furnace – 35K – DoorlessThis is the Essential Doorless version of Dometics DFMDH35 Series Furnace, designed so you can install the heater without needing an exterior access door. While this setup does mean the furnace is serviced from inside the RV rather than outside, it also eliminates the need to cut a large opening in the side of your campermaking installation cleaner and simpler. With an upgraded Hall Effect Sensor and integrated Soft Start, it delivers reliable ignition and noticeably quieter operation with an 80% reduction in In-Rush Current. It also produces 1822% more airflow, helping distribute heat more evenly and keeping your space comfortably warm.Innovative Heat ExchangerThe one-piece tubular design eliminates seams and welding for a more robust heat exchanger that maximizes air distribution. The radius tubing allows the air to move more freely through and around the heat exchanger. Redu