[Hoopi]

Hi, we installed a William direct vent heater, 15000 BTU. We warm our 12 x 24 cabin each time we go out from the current outside temp. It takes about 4 hours to get up to 16 C in the cabin. If we also run the burners on the propane stove for an hour, it helps it get over 10 C fairly quickly. It can keep the cabin warm at -30C easily after that. We run the BBQ, the inside propane stove and the heater on 2 alternating 100 lb tanks. Each tank lasts about 6 months for weekend use all season long. The tanks have an automatic switch-over valve to prevent running out of heat. The cabin is on skids. The walls are 2x4 insulated, and the floor is insulated with 2 inches of hard styrofoam held in place with latts.

Our neighbours have this, plus a wood stove and propane fridge. They use their vented heater to keep the cabin warm and fridge running when they are not there to keep it at 10C. They went with a 250-lb propane bottle that Co-op fuel monitors and fills up for them. They get 2 fills per year done. When they are there, they burn wood to heat the cabin.

I hope this helps,

Hoopi