Hi Maeve,
Hope I haven't missed you - didn't mean to offend about your level of coldness, sorry. We're -5C for about two weeks of the year, so we have to outdo somebody when it happens.
All the best to your propane heater, your straw bales, and, of course, you and yours.
I think I'll go and kick some snow while it's still there, then back to the liquid central heating.
Good luck, Dave.