The Koldfront 25,000 BTU Heat/Cool Window Air Conditioner (WAC25001W) can service a space up to 1,500 sq. ft. with cool air during the warm summer months and heat during the winter. This air conditioner has 25,000 BTUs of cooling power and 16,000 BTUs of electric heating power. Using the electronic thermostat and digital display, you can set your desired temperature as well as control other convenient features like the energy saver mode, fan speed and 24-hour timer. Dual Function: The WAC25001W is able to provide supplemental cooling for a space up to 1,500 sq. ft. and supplemental heating for a space up to 700 sq. ft. 2-Year In-home Warranty: Full 2-year in-home warranty so you can rest comfortably Remote Control: Operate the temperature setting and fan speed from anywhere in the room with the convenient remote control Sleep Function: To save energy, sleep mode will adjust the temperature periodically before returning to the set temperature after 6-hours Energy Saver Mode: This function cycles the fan on for 2-minutes at 10-minute intervals and will turn the compressor back on if the room temperature exceeds the set temperature.