On this Friday evening I went to the airport and turned on my permanently mounted heat pads (From Vans aircraft, 2x100w heater pads) that I have glued onto the oil pan, in preparation for the expected flight on Saturday.
I turned on the heater at 18:00, it was then 10F/-12C in the hangar. At 11:00 the following day, the temperature in the hangar was 12F/-11C and the engine oil temperature was at 60F/15.5C and CHTs was also up to about 56F/13C.
I then flew to a great little fly-in on a lake about 40 minutes of flight away. 21 aircraft visited, got a great cup of coffee and a typical Swedish cinnamon bun, life was great :D
Many pictures taken of my RV :D