This Garrison portable heat pump uses R-410A refrigerant to cool and heat rooms measuring 450 to 550 sq. ft. It also includes a remote control for more convenient cooling and heating, as well as hardware for easier installation .^^Specifications|Cooling Performance (BTU/HR): 12,000|Heating Performance (BTU/HR): 11,000|EER: 8.9|Voltage: 115 VAC|NEMA Plug Configuration: 5-15P|Height: 30-1/8"|Width: 18-3/8”|Depth: 15-5/8"|Weight: 72lbs.|Dehumidification Rate (PT/HR): 2.5^^Eco-Friendly^Using this heat pump is better for the environment. It meets UL-US and cUL certification standards.^^Warranty Information^Included with this heat pump are 2 limited warranties. There is a 1-year limited warranty on the entire unit and a 5-year limited warranty on the unit's sealed system.