Reliable AC with Supplemental Heat: Our powerful 12.000 BTU cooling capacity / 10.600 BTU supplemental heating capacity wall ac can efficiently provide comfort all year long for any small to medium room in your home up to 550 Sq.Ft. AC Heater Unit: Enjoy cooling. supplemental heating. dehumidification. and fan circulation; Supplemental Heating mode is meant to be operated when temperatures outside are between 23 and 76 degrees; Mode is supplemental and NOT meant as primary heat source Space Saving Design: Keep your window view and floor space with this wall heater ac; Easy installation with interior trim kit; This unit requires a special 230-volt/20-amp electrical outlet Smart Remote Control: The remote takes the temperature of the room you are in. displays it on the LCD screen and sends a signal to your heating ac every 3 minutes for accurate cooling Energy Saving Comfort: Our air conditioning and heater unit will give your electric bill a break by using the 'Energy Saver' or Sleep' mode -