Normally I have oil sump heater plugged in to smart outlet at the hanger. However there are times when I need a preheat away from home and the FBO charges $90 to plug it in.
I played around with the MSR camping stove and that worked OK but setting up with proper ducting was lees than ideal.
I stumbled across another bush-pilot thread that used a diesel heater common in the boat/camper van world. Original US design was expensive, but the patent ran out and China has taken over. You get these for about $150 at the usually online suspects.
I'm still working out the ducting options but I can tell you that these put out considerable heat...like a little Herman Nelson, but it's clean and dry air as it's has a separate exhaust, so you can duct to the cabin for heat as well.
It runs on 12V so I plug it into an SAE plug I have hooked up to battery for charging/power supply. It pulls about 3 amps. I testing it on a health PC680 for 1 hour and though a little slower, started engine just fine. Heated oil from low 30s to 70 and CHTs to 55-65 in said hour
I'll post some picture when I finalize my ducting.
I played around with the MSR camping stove and that worked OK but setting up with proper ducting was lees than ideal.
I stumbled across another bush-pilot thread that used a diesel heater common in the boat/camper van world. Original US design was expensive, but the patent ran out and China has taken over. You get these for about $150 at the usually online suspects.
I'm still working out the ducting options but I can tell you that these put out considerable heat...like a little Herman Nelson, but it's clean and dry air as it's has a separate exhaust, so you can duct to the cabin for heat as well.
It runs on 12V so I plug it into an SAE plug I have hooked up to battery for charging/power supply. It pulls about 3 amps. I testing it on a health PC680 for 1 hour and though a little slower, started engine just fine. Heated oil from low 30s to 70 and CHTs to 55-65 in said hour
I'll post some picture when I finalize my ducting.