We're doing ok for lows the next two days but then Fri night we hit 38 then 35 and 42 for Sun night then we're back up in the upper 50s for a few days then back into the 40s. I went out today and cleaned out my heaters and tested them. The one I've had the longest worked great but my smaller one would light but not stay lit. Waiting to hear back from Mr. Heater on that one. Of course I just have to wait until the very last minute to check things out it never fails. And I tell myself every year that I'm going to get a jump on things.