Save Money - 17.9 SEER efficiency will bring savings to your monthly electricity bill. Installation Ready - 12 feet insulated copper tubing, power and signal cables included. Heat and Cool - Unit is capable of 9000 BTU cooling and 9500 BTU heating. Low Ambient Ready - Can continue to heat in temperatures as low -4° F Warranty - 5 years on Parts, and 7 years on Compressor (registration required).