Furnace category
Two-Stage Furnaces
Two-stage furnaces run on a gentle low setting most of the time and ramp to full power only on the coldest days. The result is fewer temperature swings, quieter operation, and better efficiency than single-stage units.
Ideal for
- Even room-to-room temperatures
- Quieter operation
- Mixed climates
Highlights
- Fewer hot/cold swings
- Quieter than single-stage
- Better humidity control
Two-Stage Furnaces — 22 models
Infinity 96 (59TN6)
Two Stage · Lifetime heat exchanger
96.7%
AFUE
63
dB
4.4
Rating
Installed
$7,800 – $9,600
Preferred 926T Two-Stage
Two Stage · 20 yr heat exchanger
96.5%
AFUE
65
dB
4.4
Rating
Installed
$6,500 – $8,300
Performance 96 Upflow (59TP6-96)
Two Stage · 20 yr heat exchanger
96.5%
AFUE
65
dB
4.4
Rating
Installed
$6,500 – $8,300
Performance 96 (59TP6)
Two Stage · 20 yr heat exchanger
96%
AFUE
66
dB
4.5
Rating
Installed
$6,700 – $8,500
XL S9X2 Two-Stage
Two Stage · 20 yr heat exchanger
96%
AFUE
65
dB
4.5
Rating
Installed
$6,800 – $8,600
GMVC96
Two Stage · Lifetime heat exchanger
96%
AFUE
64
dB
4.5
Rating
Installed
$6,100 – $7,900
LX TM9V Two-Stage
Two Stage · 20 yr heat exchanger
96%
AFUE
66
dB
4.4
Rating
Installed
$6,000 – $7,800
AMVC96 Two-Stage
Two Stage · Lifetime heat exchanger
96%
AFUE
64
dB
4.4
Rating
Installed
$6,300 – $8,100
Performance N9MSE Two-Stage
Two Stage · 20 yr heat exchanger
96%
AFUE
66
dB
4.4
Rating
Installed
$5,900 – $7,700
Performance N9MSE Two-Stage
Two Stage · 20 yr heat exchanger
96%
AFUE
66
dB
4.4
Rating
Installed
$5,800 – $7,600
Classic Plus R96V Two-Stage
Two Stage · 20 yr heat exchanger
96%
AFUE
66
dB
4.4
Rating
Installed
$5,900 – $7,700
GCS9 Commercial
Two Stage · Lifetime heat exchanger
96%
AFUE
67
dB
4.4
Rating
Installed
$8,200 – $10,000
LX TG9S Two-Stage 96%
Two Stage · 20 yr heat exchanger
96%
AFUE
65
dB
4.4
Rating
Installed
$5,800 – $7,600
Evolution 96 (986T)
Two Stage · Lifetime heat exchanger
96%
AFUE
62
dB
4.4
Rating
Installed
$7,200 – $9,000
Performance 96 Commercial (T9MSE)
Two Stage · 20 yr heat exchanger
96%
AFUE
66
dB
4.4
Rating
Installed
$7,200 – $9,000
SL280V
Two Stage · Lifetime heat exchanger
80%
AFUE
62
dB
4.4
Rating
Installed
$7,300 – $9,100
EL180XPE Two-Stage
Two Stage · 20 yr heat exchanger
80%
AFUE
65
dB
4.4
Rating
Installed
$6,000 – $7,800
Infinity 80 (59MN7-80)
Two Stage · Lifetime heat exchanger
80%
AFUE
64
dB
4.4
Rating
Installed
$7,200 – $9,000
XC80 Comfort Two-Stage
Two Stage · 20 yr heat exchanger
80%
AFUE
66
dB
4.4
Rating
Installed
$5,700 – $7,500
Affinity YP8C Two-Stage 80%
Two Stage · Lifetime heat exchanger
80%
AFUE
65
dB
4.4
Rating
Installed
$6,200 – $8,000
Preferred 80 (816T)
Two Stage · 20 yr heat exchanger
80%
AFUE
66
dB
4.4
Rating
Installed
$5,700 – $7,500
Classic Plus R80V 80% Two-Stage
Two Stage · 20 yr heat exchanger
80%
AFUE
67
dB
4.4
Rating
Installed
$5,600 – $7,400