Last night while watching TV I decided to time my furnace run times because I'm in the market for a new furnace that I'm thinking about going down in size.
Results: cycle 1, 5 min 10 sec furnace on 34 min 12 sec off
Cycle 2, 5 min 52 seconds on 33 min 35 sec off
It's fairly cold here now, 5 degrees F at the time I was doing the timing.
Equipment: 92.5% 67k btu furnace, Broan-Nutone HEPA HRV, t stat is set to 70 and it turns heat on at 69 and back off at 70
Im in the market for a new furnace and I'm thinking about going to a 45k but contractors seem hesitant to go that low for my home, but based on my unscientific test on run times I think I'll be just fine! What do you think? Is my furnace too big or is my house just well insulated? Thanks for your input!