I have problems with cold pockets -- primarily in the rooms furthest from the furnace (usually 3 degrees C lower than thermostat), and in the basement (usually 4-5 degrees C lower than thermostat) -- with my present single-stage, AC motor furnace. The furnace and AC are also past their service life and I have decide to replace given available government rebates.
I have settled on Brand and sizing -- but just can't decide on whether to go for the 2-stage or modulating model:
- Will a modulating furnace significantly increase comfort?
- Will it be as reliable as a 2-stage furnace?
- Both the dealers I'm looking to work with are guiding me away from the modulating version .... why?
Here is the American Standard based system I'm considering:
- 80,000 BTU Comfort-R Variable Speed 2-Stage Furnace OR Comfort-R Variable Speed Modulating Furnace
- 800 OR 900 Series Family Comfort Control Thermostat
- 3.0 TON Allegiance 15 A/C and Coil
- Generalaire MAC 2000 20x25x5 Media filter cabinet (I intend to use Lennox HC16 Filters)
- Aprilaire 600 Series Humidifer with Automatic Control
My home is approximately 3000 square feet in size, built 25 years ago.
What would you do?