As my main heat source was gas fired forced hot water I have baseboards that run to every room, 1st floor and second, each on it's own zone. My first year with the Pellet Stove, i ran it only during the days, but all day, and set the 1st floor zone t-stat to about 60,,,just enought to break the frost overnight. My house is 2 story, with basement under one half, and crawlspace under the other.
in about mid January I noticed that there was no heat from the gas furnace to the 1st floor. I ended up changing the circulatr pump, zone valve and replacing 2 shut offs. still no heat. I finally figuredout that the pellet stove, while keeping me oh so toasty on my first floor never allowed the furnace to kick in, thus I had frozen heat pipes under the crawl space
I installed last year a dayton 1 hour trip timer, with 1.5 minute trippers, set to close my first floort-stat for 3 minutes every 20 minutes. In the dead of winter last year that seemed to be enough to keep the water flowing and warm enough to prevent freezing. I also set the whole timer set up on a wall switch in my living room to make it active when I want without having to go downstairs
So i guess if I could run my sotve 24/7,,,,,,,,,i certainly would
!
John