Document 0qbB4NJJVm97Xw8Gje1k4VyYx

Heating Systems Gai'aSioa1 COLUMBIA Boiler Company of Pottstown Pottstown, Pa. Makers of steel power and heating boilers COLUMBIA'S H.R.T.* OIL OR GAS FIRED BOILER Columbia h.r.t. boilers are fully auto matic, compact, complete steam gener ators. Available in sizes ranging from two to sixty horsepower. Designed for firing with gas, light or heavy oils. A special Columbia unit makes possible the inter-changeable use of gas or oil. Overfiring Permitted: Conservative rat ings plus large combustion volume per mit overfiring. This frequently elimi nates the need for additional boiler capacity, allows for plant expansion. High Steam Output: Columbia's h.r.t. boilers have an unusually large heating surface to produce more steam at higher efficiencies. More heat is converted into steam since it is proportioned to make maximum use of hot gases of combustion for the production of steam. ASME CODE CONSTRUCTED-- Available for pressures of IS to ISO psl. A complete, automatic power plant wherever steam is used for pro cessing Horizontal Design for longer life: The complete submersion of tubes pro tects them from water line corrosion. Dry Steam Assured: Large steam Space and greater liberation area vir tually eliminate waste producing water carryover. Over-All Efficiency: Factory installed, specially designed combustion chamber provides rapid heating refractory sur faces for peak combustion efficiency. In sulation, 7 inches thick in the combus tion chamber proper, and 4 inches thick in the gas passage, keeps heat loss at a minimum. Special refractory brick heats up to great intensity to complete the combustion of previously unignited fuel particles. This complete combustion not only increases efficiency but makes for clean combustion. Soot accumulation on heating . surfaces is minimized. Boiler tubes require less cleaning. Safety Assured: Two pass updraft design lowers direct loss and reduces possibility of furnace pressure, pulsation or exces sive combustion noises. Accessibility and easy Maintenance: Simplified construction provides easy front and back access to the single bank of tubes. Entire unit can be gotten to for inspection of boiler and chamber by removing the covers. COLUMBIA HRT OR DUAL FUEL Horizontal Return Tabular Type Boiler Size 6 8 10 25 35 Hp Rating....................................................... Length O.A.................................................. in. Width O.A.................................................... in. Height O.A...................................................in. Water Heating Surface.................... sq ft Oil Firing Rate........................ gal. per hr Gas Input.................................... But per hr Approximate Output...............Btu per hr 6 58 29 44 30 2.00 250,000 200,000 8 69 33 50 56 3.00 400,ooc 300.000 10 15 30 69 84 100 33 39 45 50 64 64 68H 72 92 120 200 3.5 5.00 7.001 10.001 490,000 1700,000] 900,0001 1,400,000] 350,000 500,00011700,000' 1,000,000! 40' 60 100 102 45 52 68H 80 290 415 12.00 18.00 1,700,000]12,600,000 1,200,000! 1,800,000 Horizontal return tubular type boiler 1546 Heating Systems lifts, off1 COLUMBIA Boiler Company of Pottstown Pottstown, Pa. Makers of steel power and heating boilers STEEL, TUBELESS OIL-FIRED, WATER TUBE GAS-FIRED AND COAL-FIRED HEATING UNITS ASME CODE CONSTRUCTED Available with highly efficient, custom engineered gas or oil burners. Columbia steel boilers, gas or oil fired, have self con. tained large copper instantaneous tank less coils, supplying a continuous flow of year 'round domestic hot water. Maximum operating efficiencies assured by the balanced design of the boiler and burner; by the arrangement of the baffles which force the hot gases to travel four of five times the full length of the boiler. One piece electric welded construction: Columbia offers a heating unit with full electric welded construction of heavy copper bearing steel, to assure lower heating cost and longer operating life. Quiet operation: Ample combustion space, the insulation and heavy steel jacket completely eliminate objectional noise. Dual Firing: Columbia gas heating units may be easily converted for efficient oil firing. Ratings--Oil Fired L-16 L-18 MODEL NO. L-20 L-22 L-24 L-30 L-32 Input--Gals per Hr. .-. Output--Btu per Hr.. Installed Radiation Sq Ft Forced Water... Sq Ft Gravity Water.. Sq Ft Steam........ ............ Btu per hr Forced Water Btu per hr Gravity Water............ 1 Btu per hr Steam . 1.00 105,000 580 * 510 320 86,000 77,000 77,000 1.20 120,000 720 640 400 108,000 96,000 96,000 1.35 150,000 990 880 550 148,000 132,000 132,000 1.75 210,000 1260 1120 700 189,000 168,000 168,000 2.25 270,000 1620 1440 900 243,000 216,000 216,000 3.00 330,000 1980 1760 1100 298,000 264,000 264,000 4.00 450.000 2700 2400 1500 405,000 360,000 360,000 Constructed Water Tube Only Gas Fired Units A.G.A. and SUB Approved for outputs from 72,000 to 172,000 Btu's per hour. Coal Hand Fired Conversion Units available in sizes L-18, L-2`2 and L-30 COLUMBIA BASEBOARD RADIATION Suspended Element--no noise! Tension Fastening--no rattling! Low Angle Heat--no drafts! Pre-Punched Holes--fast installa tion! 1547 &