Diesel Heater Comparison Been wondering and contemplating over these Swelter diesel heaters? So did I. For a long time I have been struggling with my 2 Eberspacher heaters. Eventually I had the fan bearings and brushes replaced. It helped but for READ MORE
I found the wire from the controller to the battery getting very hot when output amps exceeded 30A. On a good sunny day, I saw moments of charge exceeding 50A. The wire got so hot you couldn’t touch it.