I bought a cabin heater as an accessory to the Viking engine. It uses circulating engine coolant for heat and has two electric fans. There is no way to stop the flow of coolant through the heater but it does not produce much heat when the fans are off. Following the instructions from Viking, I fabricated a mount and installed the heater on the firewall. It will blow warm air over the rudder pedals. Should make for warm feet. I’ll wire it to a switch later.
