Offering an impressive 15kW (15,000BTU) of heat output the Turbofan 15000 is a free standing lightweight electric fan heater, the fan gives 4 distinct outputs settings, during summer months the fan can be used on setting 1 which is Fan mode, setting 2 will switch the heating element on and the fan will deliver 5000w of heat output, setting 3 gives 10000w and then lastly setting 3 will give you 15000w. Key Fatures: Turbo Fan Design. Lightweight & Portable. 4 Output Settings. 15,000 BTU Heat Output 15kW. Thermostatically-ontroled unit. Traditional heating element. Heavy-duty powder coated finish. Intergrated legs & carry handle. Can be used as convensional fan. Requiring 400v three phase supply.