Lennox · Premium series
Lennox Signature Collection
The Signature Collection houses Lennox's most efficient and quietest furnaces, including variable-speed modulating models that reach up to 99% AFUE.
Models in the Signature Collection
Lennox ENERGY STAR
SLP99V
Modulating · Lifetime heat exchanger
99%
AFUE
58
dB
4.8
Rating
Installed
$9,300 – $11,100
Lennox
SL280V
Two Stage · Lifetime heat exchanger
80%
AFUE
62
dB
4.4
Rating
Installed
$7,300 – $9,100
Lennox ENERGY STAR
SLP98V Variable-Speed
Variable Speed · Lifetime heat exchanger
98%
AFUE
59
dB
4.6
Rating
Installed
$8,200 – $10,000
Lennox ENERGY STAR
SLP99V XC Dual-Fuel Package
Modulating · Lifetime heat exchanger
99%
AFUE
57
dB
4.8
Rating
Installed
$10,900 – $12,700