This Garrison through-the-wall air conditioner uses R-410A refrigerant to cool and heat rooms measuring 400 to 450 sq. ft. It includes a remote control for more convenient cooling and heating.^^Specifications|Cooling Performance (BTU/HR): 10,000/9,800|Heating Performance (BTU/HR): 10,600/8,600|EER: 9.0|Voltage: 230/208 VAC|NEMA Plug Configuration: 6-20P|Height: 14-1/2"|Width: 24-1/4"|Depth: 20-3/8"|Weight: 72lbs.|Dehumidification Rate (PT/HR): 2.3^^Eco-Friendly^Using this air conditioner is better for the environment. It meets UL-US and cUL certification standards.^^Warranty Information^Included with this air conditioner 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.