pianotuna wrote:
Hi,
Replace the return air grill for the furnace with a twin window fan. I have mine on a thermostat at the water pump. It draw a scant 27 watts so is easily run on an inverter.
... Or block the stock furnace return air grill opening into the coach interior and make an opening somewhere else down near the floor for the furnace's return ... thus forcing the return air to travel throughout the backsides of the coach cabinetry where a bunch of water pipes and the tank are located in interior voids behind the cabinets!
For instance, our small motorhome is perfectly setup to do this if we ever want to drycamp in the winter months up North or up high. The entire fresh water system tank and pipes are in the interior and in voids where furnace incoming air could be drawn past them if I change the furnace's incoming air draw-point.
Both our grey water tank and black water tank have 12 volt heating pads on their bottoms for possible use drycamping in cold weather. I'd just have to run one of our two generators a lot each day to keep the batteries up.
