Document EdYRYnJDZ8v6JnovvYYgdJOaj

Air Conditioning DhlS^'u^#j National Heater Company, Inc. DIRICT 2475 Doswell Avenue St. Paul 4, Minnesota NATIONAL CHAMPION HEATERS' 400,000 to 3,000,000 Btu Direct fired for oil, gas or combination fuels Engineered for industry--space heating, tempering make-up air and drying jj] Approved by American Gas Association--UL Listed SAVE ON INSTALLATION! National Champion Direct Fired Heaters save you from 30 percent-70 percent over systems that require expensive ductwork, piping, condensate lines, traps and pumps. National Champion Direct Fired Heaters are factory flame-tested and shipped completely assembled and wiredl,*- National Champion Direct Fired|| Heaters require only sheet metal staclflp fuel line and electric power! SAVE ON MAINTENANCE! M Simplified burner and . controls, sg| well as readily accessible clean-outpl plates, make maintenance easy and.*- economical. '' V; Spare parts are normally available^ locally. jf LicensecToperators are not required. SAVE ON FUEL I ||| MODEL H Available in ceiling sus pended, inverted and portable units National Champion Heaters are.S guaranteed at 80 percent operatingg efficiency with light or heavy oil, gas or, combination fuels. 55 National Champion Heaters buitflp' fuel only when zone thermostats call for heat. Burner shuts off when temperatui||| TESTED CONSTRUCTION--Features high chrome nickel stainless steel combus tion chamber, in efficient teardrop design. Structure welded into rugged, one-piece steel frnit with baked enamel exterior finish. Engineered for dependable, en during service. is attained. No fuel wasted to overcome transmis||| sion losses^ No wasteful recycling b?|| maintain steam pressure or water perature. . Approved by American Gas Association Underwriter's Laboratories Listed. :C 102 A* ir Lo,,naitioning * industrial Heating Direct Fired Units National Heater Company, Inc. 2475 Doswell Avenue St. Paul 4, Minnesota Efficient heat exchange, high velocity discharge develop truly economical space heating 400,000 to 3,000,000 Btu 1. When heat is called for by the auto matic thermostat, the induced draft blower first starts to purge the combus tion chamber. Draft is established before burner is energized! 2. Main blowers start only after proper bonnet temperature is reached. Notice that main blowers are separate from in duced draft blowers. 3. For most efficient re-circulation, air is drawn from floor level through louv ered panels. *1. For full uniform heating and maxi mum heat exchange, air passes first over National's lifetime stainless steel "tear drop design" combustion chamber and then around multiple banks of econo mizer tubes. 5. Adjustable heads, atop the heater, discharge heated air at high velocity. 6. For maximum combustion efficiency, the separate blower integral with tne burner and the separate induced draft blower are each independently adjustable. Cutaway view oj the National Champion Model H shows air jlow intake to adjustable discharge heads. RESULT: No "cold blasts" on start-up! Proper, uniform heating of air! High velocity discharge that keeps warmed air at working levels! Minimum floor-to-roof temperature differentials! Underwriters Laboratories Listed Avvroved by American Gas Association HEATER NUM BER BTU OUTPUT CFM AT H* SP SQ FT HEAT ING SURFACE MOTOR HP 1800 RPM EXHAUS TER DIS CHARGE SUPPLY FAN RPM PLENUM OPENING APPROX SHIP PING WEIGHT TD-40 TD-50 TD-65 TD-75 TD-85 TD-100 TD-125 TD-150 TD-175 TD-200 TD-250 TD-300 400.000 500.000 650.000 750.000 850.000 1,000,000 1.250.000 1.500.000 1.750.000 2,000,000 2.500.000 3,000,000 5.400 6,600 7,600 8,800 10,200 12,500 15,300 19.400 22,000 26,000 32.000 38.000 137 137 178 178 255 255 436 436 585 585 862 862 1 ltt 2 2 3 5 5 77HH 10 10 15 7x7 7x7 7x7 7x7 7x7 7x7 10 x 10 10 x 10 10 x 10 10 x 10 10 x 10 10 x 10 720 18 x 60 760 18 x 60 680 18 x 80 700 18 x 80 750 18 x 80 880 18 x 80 660 24 x 100 7-JO 24 x 100 720 30 x 120 790 30 x 120 850 30 x 160 890 30 x 160 1550 1650 1750 1900 2400 2600 3200 3450 4150 4300 5200 5500 Larger sizes availsble oii special ord er. T^ted and rated in accordance with the code adopted in 1955 by ASHAK for Heavy Duty Furnaces and Direct Fired Unit Heaters. ADDITIONAL MODELS_TO 3,000.000 BTU 103