I am preparing to replace my existing oil furnace with a new gas furnace and had a question on the difference between a 2-stage and 3-stage gas furnace.
I have been told by two contractors that I should go with a 2-stage gas furnace instead of a 3-stage because the 3-stage cost more and usually goes from low-fire to high-fire and skips the middle stage anyway.
Is this true? Any recommendations?
My info is this:
approx 1700 sq ft
just updated attic insulation and air sealing last fall