So I moved in about a week ago. Just in time for it to get cold. I did change from 100 watt incandescent bulbs underneath to 250 watt heat lamps to help keep the tanks from freezing. I put 2 lamps with the 100 watt bulbs in the pass-through because there are pipes that run through there. While the coldest it has gotten so far is the low 20's I have been quite comfortable. It's not going to get a lot colder here until the end of January. Then February is fairly miserable. I don't seem to be tearing through propane too badly at this point. I discovered a feature on my fridge that I was unaware of. It has a warning light when you approach the 30 amp limit. So far by being careful with what is running when, I can run everything as needed. I guess I'll see what February brings.