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The 18.0 SEER rating makes this air conditioner energy-efficient while providing home comfort.

Variable-capacity air conditioner, providing up to 22 SEER efficiency and true variable capacity.

The 18.0 SEER rating makes this air conditioner energy-efficient while providing home comfort.

Truly variable. Truly digital. Provides up to 18 SEER efficiency.

The XR18i’s 18 SEER and 9.5 HSPF ratings make this unit a great choice for saving energy and lowering your monthly energy use.

Variable-capacity heat pump, providing up to 20 SEER efficiency and true variable capacity.

The XR17’s 17.25 SEER rating makes this unit a great choice for saving energy and lowering your monthly energy use.

Digitally-enabled, variable-capacity heat pump producing up to 20 SEER efficiency.

The S8X2 carries an 80% AFUE rating — a clear sign that this furnace uses most of its fuel for heating.

Variable-Speed, Two-Stage Gas Furnace offering an efficiency rating of up to 96% AFUE.