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S.J. Kowalski Carries High-Efficiency Heating, A/C & Water Heating Systems

SL18XP1 Single Stage Split Heat Pump

Since it’s part of the Dave Lennox Signature® Collection' the SL18XP1 can be easily combined with solar roof modules in a SunSource® Home Energy System. This means it can drastically cut your utility bills and make you eligible for a federal tax credit.

  • Up to 18.5 SEER Cooling Efficiency
  • Up to 10.2 HSPF Heating Efficiency
  • Single Stage Operation
  • SilentComfort Technology
  • Solar Ready Design
  • PermaGuard™ Cabinet and SmartHinge™ Louver Design
  • iComfort®-enabled technology
MODELCooling Cap. MBtuHSEERHeating Cap.MBtuHHSPFRefrigerant Charge Oz.Line SizeDimensions HxWxDWeight Lbs.
SL18XP1-02424.0 18.0 22.2 9.6 134 3/8-3/4 37x35.5x39.5 253
SL18XP1-03029.8 18.0 27.2 9.6 138 3/8-3/4 37x35.5x39.5 257
SL18XP1-03636.0 16.0 34.0 9.0 158 3/8-7/8 41x35.5x39.5 271
SL18XP1-04240.5 15.1 35.6 8.5 155 3/8-7/8 41x35.5x39.5 294
SL18XP1-04848.0 15.0 46.0 9.5 176 3/8-7/8 47x35.5x39.5 319
SL18XP1-06057.0 15.0 52.5 9.0 165 3/8-1-1/8 47x35.5x39.5 321

Warranty Information

  • All Parts for 120 months -

Available Documents