This Portable Air Conditioner with Heater quickly cools, dehumidifies and heats up to 525 square feet of living space for total comfort in any season. With 14,000 BTUs (8,500 BTU with the new DOE guidelines) of power and a fan with up to 250 CFMs of airflow, this A/C and space heater easily keeps your room the temperature you want. The included venting kit makes it a snap to set up air conditioning or roll it into place for heating on the easy-glide casters.