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74 E. K. CAMPBELL COMPANY Manchester at 18th Kansas City 26, Mo. Service Offices in Principal Cities - Heavy Duty Warm Air Furnaces Capacities to 8,000,000 btu * Builders of Custom Heating Equipment Since 1910 "Therm!daire" Design 10 "Tbercnidairc" Design 40 "Thermidaire" Design 41 "THERMIDAIRE" DESIGN 10 HEAVY DUTY FURN ACES--CUSTOM HEAVY DUTY EQUIPMENT FOR ENGINEERED APPLICATIONS Typical Problems for which Design 10 Furnaces Offer an Excellent Solution: Need for constant ventilation--To maintain freshness in any structure, partly larly where high occupancy loads occur, mnrfnlatinp face and by-pass cone arrange ments axe used to obtain constant air circulation with "Thermidaire Design 10 Heavy Furnaces. Need for air conditioning--Since most modem structures have either pretest cooling requirements, or will have' st some future-date, the large air capacity needed and the basic distribution system required ere readily available in the structore using "Thermidaire" Design 10 Heavy Duty Furnaces. Need for very large capacity equipment--Where large loads exist, the high output capacity available from single uuits simplifies the solution- "Thermidaire" Design 10 Heavy Doty Furnaces available in standard sizes with output to 8,000,000 Btnh and 145,000 cfm, larger on special request. Need to meet special design requirements--For Kalanring Btnh vs. cfm component sizing, separate sizing of furnace and blower elements permits "Thermidaire" Design 10 Heavy Duty Furnaces to meet special requirements for very high or low air volumes, or temperature rises, and to handle unusual jobs, process needs, or exceptional buildings. t Need for flexible or special equipment arrangements^Where building dimen sions limit outlet or inlet duct arrangements, location of firing front or position of blower relative to air conditioning or furnace components "Thermidaire" Design 10 Heavy Duty Furnaces are excellent doe to the extreme flexibility possible in arrang ing equipment Need for full convertibility to any fnel--Where dual fuel equipment is required, ` or in event of future changes in fad requirements (including gas, L P., oil--light or heavy, and solid foels), "Thermidaire" Design 10 Heavy Duty Furnaces offer com plete protection since any of these fuels can be efficiently burned. Need for extra quality equipment--"Thennidaire" Design 10 Heavy Doty Fur naces are the highest quality equipment available, designed for continuous duty and long life on tongh jobs and large loads. Only Heavy Duty blower equipment is used. Only highest grade burner and control equipment used. Extra Heavy welded steel construction throughout. Baked enamel exterior finish. Fiberglas insulated Low Internal resistance to fine gates. Operating efficiencies up to 84 percent with resultant fuel economy. Counter-Flow beat transfer. Positive pressure or Drive through principle. Need for special services-- Our half-century of application experience in the specialized field of heavy duty warm air heating is available to assist in arriving at the proper solution to your problem We recognize that satisfactory solution of the users problems is the end objective and we back our equipment with competent field service to accomplish thl. "THERMIDAIRE" DESIGN 40 HEAVY DUTY FURNACES Standard heavy duty equipment for general heating applications--Available from 250,000 to 2,000,000 Btuh output in vertical, horizontal, and inverted models--available for gas, oil or combinations. Provides convenient compactness, high efficiency, simple in*. stallstion. Blower, burner, ID fan and controls, mounted, wired and fire tefted. Normally shipped assembled. "THERMIDAIRE" DESIGN 41 HEAVY DUTY FURNACES Standard heavy duty equipment for engineered applleetlnnf Hedgiwl for 0*c with face and by-pass, constant veotilation, or air conditioning--requires separate blower --has built in by-pass section--available in same models and fuels as Design 40, in (0 from 250,000 to 34300,000 Btuh output. Provides convenient compactness, high efficiency, simple installation. Burner, controls and ID fan, mounted, wired and fire tested. Normally shipped assembled. OTHER DESICNS AND SPECIAL EQUIPMENT AVAILABLE ON REQUEST Jfrnditionine 75 CAMPBELL HEATING CO. 3121 Dean Are., Des Moines 17, Iowa Telephone AMhersi 6-5169 Campbell Heaters make it easy to use warm air heating in large buildings. Compact, easy to install, and easily adjusted for maximum combustion ef ficiency. nr series HORIZONTAL HEATER T" SERIES HJ-BOY HEATER All Campbell Heaters may be used for either direct space heating or with duct systems in multi-room installations. All units are easily adaptable for summer air conditioning. SPECIFICATIONS and DIMENSIONS HEATQ BLOWS! MAX.FUEL RATE DIMENSIONS Unit He. Output torn Capacity BTU/ wcms. p. Motor on Btu Gas IP Gas Shipping Hz. 75* Rise hp qph dh ph B In. L In. W in. Weight "U" Series -- Top Quality Oil & Gas Fired Heavy Duty Heaters Available In Hi-Boy, Down Flow and Horizontal Models U22S UZ75 225.000 275.000 2750 MM 8 20 280 2.8 2.5 3.5 48 U400 325,000 400.000 4900 1 2.9 400 4.0 1*4 3.6 500 5.0 72 54 U500 U600 600.000 600,000 7300 4.6 625 6.3 5.4 750 7.5 84 U700 U800 700.000 800.000 8500 8600 2 2 6.2 875 8.8 7.2 1000 10.0 78 U9S0 850,000 uuoo 1.100,000 13500 3 3 8.5 1200 12.0 9.8 1375 13.8 106 96 U1300- 1,300.000 16000 . 3 U1500 1,500,000 18500 5 11.6 1626 16.3 13.4 1876 18.8 126 114 UI725 1.725.000 U2000 2.000,000 24400 5 6 15.4 2150 21.5 17.9 2500 25.0 180 130 U2600 2,500,000 30500 U3000 3,000,000 jtusixi 7*4 223 3100 31.0 10 26.8 3740 37.5 180 144 23 29 40 48 54 1350 1400 1750 1800 2250 2300 3350 3400 4600 6000 6200 9400 12400 "F*` Series -- Efficient Low Cost Oil & Gas Fired Heaters Available in Hi-Boy, Down Flow and Horizontal Units F200 F300 F6S0 F750 FI000 F2000 200.000 300.000 400.000 550,000 750,000 1.000,000 1X00.000 2,000,000 2450 3680 4900 6800 9200 12200 18300 24400 *4 1.8 250 2.5 62 36 2.7 375 3.8 . 67 42 1*4 36 500 5.0 72 48 2 5.0 690 6.9 80 57 2 6.7 940 9.4 94 72 3 9.0 1250 12.5 114 84 5 1875 7*4 17.9 2500 2S 126 94 138 106 20 22 24 28 34 42 46 48 725 875 1000 1275 1900 2S00 5200 8000 Series -- America's Most Efficient Heaters for Large Buildings OiL Gas, Stoker or Hand Fired 8032 8046 8060 8074 8075 8100 8125 8150 8175 8200 8250 8300 8350 400.000 500.000 600.000 700.000 840.000 960,000 1.060.000 1X20.000 1,440,000 1,800,000 2X50.000 2.700.000 3.150.000 5300 6600 8000 9200 11000 12500 14100 17300 18900 23600 29500. 35400 41300 1.0 3.6 500 5.0 1*4 46 625 6.3 li? 64 760 7.5 1*4 6X 875 6.6 66 66 66 66 134 2 75 66 1200 12.0 9.7 1350 13.5 11.8 1660 16.5 12.9 1800 16.0 80 80 60 198 80 210 5 16.1 2250 22.6 100 20 1 2810 28.0 100 252 24.1 3380 33.8 118 268 7*4 26.1 3940 39.4 118 - 268 51 sr 51 51 76 76 76 76 76 94 94 104 114 2800 3200 3600 4200 7200 8500 9700 11500 15000 18000 21000 MOO SERIES HEATER QUALITY All Campbell Heaters are backed by Camp bell's 80 years of engineering experience and manufacturing craftsmanship. MnRF rriMPiFTF cpFriFirATTONc; AND PERFORMANCE DATA WILL BE SUPPUED PROMPTLY ON REQUEST. IT PAYS TO SPECIFY CAMPBELL There is a Campbell Heater to meet the most exacting re quirements for any installation. Compare cost, quality, effi ciency and performance and you'll agree that Campbell offers top value! ENGINEERING SERVICE Our engineering department will be glad to help the consuiting engineer with any heating, ventilating or air conditioning problem.