We live in an old farmhouse and have done a lit of airsealing and insulating this year. We have relied on our heat pumps all winter, and it's been much more comfortable than when we relied on pellets and propane. Temps stay mid- to lower- 60s in the areas furthest from the air handlers, and we've got the thermostat at 67.

Yesterday was the first time we put on the pellet stove and that's cuz we were sitting around hungover and wanted the ambiance.