I am going to replace my 20 year old lennox and have gotten several quotes. I live in Minnesota, some nights (most of January) can get down to -20 to -30 before wind chill.
I decided to go with the Carrier infinity system
Now the load calc (wrightsoft) came out to 63k BTU. Problem is Carrier only make a 60k and 80k. The installer wants to use the 80k. Sound right?
Please help, I dont want to be oversized.