I have about 900 finished square feet in my house, and I'll eventually be adding another 200 or so finished sq/ft in my basement. I'm looking to get my furnace replaced and have been quoted two options:
- Carrier 60,000 BTU 92%
- Carrier 40,000 BTU 95%
I'm currently renovating my house and looking for it to be as efficient as possible. Walls/trusses will be well-insulated and all the windows are being replaced with high-efficiency ones. I'd like to go with the more efficient furnace, but I'm not sure that it will be enough BTU's to sufficiently heat the place. I'm looking for an opinion from someone who knows a thing or two about this stuff.
I should probably mention that I'm from Wisconsin, where we've spent the last couple weeks in -20 degree (with windchill) weather!
There are two exterior doors, 9 windows (including an 8-foot bay window), and it's a single-story, single-family dwelling.