The Koldfront 8,000 BTU Through the Wall Heat/Cool Air Conditioner (WTC8001W) can service a space up to 350 square feet with cool air during the warm summer months and heat during the winter. Its through the wall design is safe and secure and helps eliminate the issue of outdoor air seeping indoors as is sometimes the case with a window unit. The air conditioner has 8,000 BTUs of cooling power and 4,200 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. 4-way air directional louvers; Three (3) fan speeds; Four (4) operation modes. Dimensions: 14.5" H x 24.2" W x 20.3" D