Fan Heater: 1, using high-quality cold-rolled steel shell, outside the high-strength plastic powder spray. 2, heating element Model Power (KW) Voltage(V) Quantity of heat(Btu/h) Air intensity(m3/h) G.W (Kg) Packs the size (mm)20'(PCS)40'(PCS) DRF-04-02 2.3/1.15 220-230 7850 300 6.2 315*292*356 816 1712 DRF-04-03 3/1.5 220-230 10250 300 6.2 315*292*356 816 1712 Fan Heater