Talk to a lawyer. They get badmouthed a lot, sometimes deservedly so, but very often a nastygram on a law firm's letterhead gets someone's full and undivided attention.
Forget everything you read online because it's nonsense.Everything I’ve seen online says to multiply heated square footage by 50 in zone 4/5 (northern suburbs of Chicago) which means they should have installed a 70 or 80K BTU furnace.
It should cycle less and less until it reaches its design temp, where it should run constantly.Our western NY 120 year old 1700 square foot farmhouse uses a 60K BTU furnace. At 10 below zero it cycles and heats without breathing hard. We have about double the insulation of a new house, though.
Ditto for my 22 year old house in Southern Ontario, with 60K furnace 1450 sq foot on main floor, plus 1450 sq ft basement. Its likely better insulated than most, however.Our western NY 120 year old 1700 square foot farmhouse uses a 60K BTU furnace. At 10 below zero it cycles and heats without breathing hard.
It's not.but I think it is better to have a long run cycle, a rest period, and another long run period.
“bit more oomph“ means your furnace is sized right for about 0.05% of the operating conditions it’ll see any given season.Short cycling is bad. Normal cycling is not. If cold weather makes it run all the time, in colder weather it will not keep up. It can always get colder or windier, and if you don’t have a little extra capacity you will have a cold night. A huge furnace that short cycles with brief blasts of hot air is bad. A furnace that runs 90% of the time in cold weather is good, it has a little left over for more cold or excessive wind.
We had a cold wave a few years ago and the power went off for a few hours. Neighbors who had “just right” sized furnaces that ran continuously in that cold weather saw their houses being cold for days because their equipment could not catch up. Mine had just a bit more oomph that let it catch up more quickly.
A properly sized unit will have enough capacity to maintain in the most extreme conditions encountered in an area, running continuously.Short cycling is bad. Normal cycling is not. If cold weather makes it run all the time, in colder weather it will not keep up. It can always get colder or windier, and if you don’t have a little extra capacity you will have a cold night. A huge furnace that short cycles with brief blasts of hot air is bad. A furnace that runs 90% of the time in cold weather is good, it has a little left over for more cold or excessive wind.
We had a cold wave a few years ago and the power went off for a few hours. Neighbors who had “just right” sized furnaces that ran continuously in that cold weather saw their houses being cold for days because their equipment could not catch up. Mine had just a bit more oomph that let it catch up more quickly.