Dura Heat, 240 Volt Electric Workspace Heater. 240 Volt, 20 Amps, 3750 Watts. Nearly 12,800 BTU’s in an instant! The tubular cabinet design of the Electric Forced Air Heater maximizes heat distribution, making it perfect for jobsites, workshops, warehouses, agricultural buildings, and many other heavy duty heating needs. The Electric Forced Air Heater is portable, or it can be mounted to the wall or ceiling with included mounting kit! The heavy duty construction includes stainless steel heating element, heavy gauge cabinet, built in turbo fan.