12-25-2017, 07:48 PM
So I have two appliances in the cargo box behind my rig that can't get below freezing- an Eccotemp propane water heater and a Shurflo water pump. I bought two 12v heater fans and put each in front of each appliance and it worked alright for most of last weekend, but it started reading 90 degrees in the cargo box and the wires were getting hot. Of course they eventually died halfway through the night. It got down to 25. Thankfully the appliances somehow survived. They're hard to access so I can't really wrap pipe heater coil around them, which I presume is the 'right' way to winterize, so does anyone have any ideas of something more reliable than heater fans? Maybe a 12v cushion seat heater that I could just squish up against them?