Lennox | SL18XP1 Heat Pump

The most precise and efficient heat pump you can buy. The XP25 delivers energy-smart, year-round comfort.


Lennox SL18XP1 High Efficiency Heat Pump

The quietest and most efficient single-stage heat pump you can buy

With industry-leading efficiencies of up to 23.50 SEER and up to 10.20 HSPF, the XP25 can save you hundreds of dollars in utility costs every year.

So How Does a Heat Pump Work?

Additional information

Energy Efficiency

ENERGY STAR® Qualified,
Up to 18.5 SEER / 10.20 HSPF

Stages of Heating

Single Stage

Sound Rating

As low as 67 dB