Electric Heaters Back P1500 P300 P600 P900 P1800-1 P1800-3 P1800D P4000 P6000 P1500 5,100 BTU/hr 150 CFM KW/h – 1.5 P300 10,200 BTU/hr 205 CFM KW/h – 3 P600 20,500 BTU/hr 250 CFM KW/h – 6 P900 30,700 BTU/hr 350 CFM KW/h – 9 P1800-1 65,000/41,000 BTU/hr 590 CFM KW/h – 18/12 P1800-3 65,000/41,000 BTU/hr 590 CFM KW/h – 18/12 P1800D 65,000/41,000 BTU/hr 940 CFM KW/h – 18/12 P4000 up to 136,500 BTU/hr 1,800 CFM KW/h – max 40 P6000 up to 204,700 BTU/hr 1,800 CFM KW/h – max 60
