This unit provides comfort for spaces between 900 to 1400 square feet in size.If you are in a colder climate area, you can add heat strips or a split air conditioning unit to this modular blower unit. The MrCool Modular Blower is designed out of galvanized steel and finished with a protective coat of paint. If you are ever looking for a smaller modular blower, we offer a 5 ton, 4 ton, and 3 ton.