Goodman · Essential (GMSS/GC9S)
Goodman GMS80 Single-Stage 80%
80% AFUE Single Stage gas furnace with a PSC blower.
Specifications
AFUE Efficiency
80%
Heating Stage
Single Stage
Blower Motor
PSC
Sound Level
72 dB
ENERGY STAR
No
BTU Range
40,000–120,000
Heat Exchanger Warranty
Lifetime
Parts Warranty
10 years
Key features
- Single-stage gas valve
- Reliable steady output
- Durable steel cabinet
- Compatible with most thermostats
Pros & cons
Pros
- Lowest upfront cost
- Simple to service
- Proven reliability
Cons
- Larger temperature swings
- Louder on startup
Categories
GMS80 Single-Stage 80% reviews
No more cold spots
"The installer walked us through the financing and rebates, handled all the paperwork, and had us up and running in a day. Couldn't be happier with the comfort."
— Mike R., Calgary · 2025-08-02
Reliable through a brutal winter
"We went with a two-stage model on the recommendation here and it holds temperature perfectly. No more big swings between the thermostat cycling on and off."
— Priya G., Mississauga · 2025-09-09
Worth the upgrade
"Got three quotes through the marketplace and picked the mid-tier option. Install was clean, the crew was respectful of our home, and everything works great."
— James M., Winnipeg · 2025-10-16
More Goodman models
GMVM97
Modulating · Lifetime heat exchanger
98%
AFUE
59
dB
4.8
Rating
Installed
$7,300 – $9,100
GMVC96
Two Stage · Lifetime heat exchanger
96%
AFUE
64
dB
4.5
Rating
Installed
$6,100 – $7,900
GMSS96
Single Stage · Lifetime heat exchanger
96%
AFUE
69
dB
4.2
Rating
Installed
$5,100 – $6,900