So a couple of weeks ago I go to a house that had no heat for several days when it was brutally cold and windy and the living room looked like an ice rink. Their baseboard heating elements froze and split open in 4 locations ruining a pretty large section of the wood flooring while they were vacationing in Puerto Rico for 2 weeks. I fix all the breaks and then get to figuring out why the heat went off and it turned out that both thermostats stopped working because the 2 AA batteries in them were dead. I'm not sure what the odds are of it being the coldest weather we've had in decades, combined with they're away for 2 weeks, and not 1, but both thermostats stopped working due to dead batteries are, but I bet it's pretty high. Just a friendly reminder to make sure your stuff is up to snuff.