Document OEa1rn7oQBLZEnj99deeMEDYe

United States Radiator Corporation Boilers and Radiators forced to thoroughly mix and1-complete combustion is secured. ' Twice more, three times in all, the gases are forced to travel through dues the full length of the boiler in constant contact with the largest possible heating surface, raving up to the water the maximum cumber of neat units Before passing out of the boiler. _ - When the fire is banked at night, tb(e deep fuel bed slowly cokes the coal forming an incandescent bed that ignites RADIATOR LOADS AND DIMENSIONS Boiler No. Height of Water Line, Inches Grate Area Sq. Ft. Coal Ca pacity, Cu. Ft. Outlets and Inlets Direct Cast Iron Radiator Loads, Sq. Ft. Steam Water 750 850 950 1050 1150 1250 1350 4700 5350 5850 6500 7000 7650 8150 7755 8825 9655 10725 11550 12620 13450 66 66 66 66 66 66 66 Min. Chimney Sizes mM -- V ". x 18.29 29.67 VS' 55 24x24 21.33 34.68 4-5' 60 24x24 21.33 34.68 4-5' 65 24x28 24.37 39.69 5-5' 70 24x28 24.37 39.69 6-5' 80 28x28 27.41 44.71 6-5' 90 28x32 27.41 44.71 6-5' 95 32x32 *See Guaranteed Heating. Height including trimmings 92 indies; width 82 inches Specify if back or top outlet smoke hood is required. the fresh charge in the morning and enables the boiler to reach its full capacity, easily and quickly. The efficiency of the SO-inch series of Capitol Smokeless Boilers is shown strikingly by the typical performance curve below. The chart is based on many individual tests and the ratings are fixed conservatively. Notice the high volatile coal used for these tests. PERFORMANCE CURVE No. IISO CAPITOL BOILER Capitol Smokeless Boilers--40" Series The Capitol Testing Laboratory has gone even farther than designing the most efficient smokeless boilers known. The 40-inch series has a 49-inch water line. No lower water line is necessary for any room with a ceiling high enough to allow men to work. Not only fuel is saved; building costs are cut. No pit is needed. Construction savings alone, particularly where water in the basement must be guarded against and where foundations must be cut in rock, frequently pay for the entire heating plant. For large installations in such locations a tandem of 40-inch Capitol Boilers is often used in pref erence to a single boiler of larger site. Important as this exclusive advantage is, however, it is secondary to the remarkable economy that results from the efficient operation of the Capitol 40-inch series. ' With no pit required and no base section on/this boiler, installation is simplified. Any bituminous coal or lignite may. be used successfully; burned economically and'smokelesray by any ordinary fireman.` Auxiliary air is admitted just above the fuel bed through passageways cast across the entire width' of the front boiler section. The sise of the air. passages are correctly proportioned by the Capitol. Testing Laboratory and need ho adjusting. The greater portion of the air is taken from the ashpit The remainder, enters the passageways through openings in the clinker door. The amount of air drawn No. 1140 Capitol Smokeless Boiler in is automatically regulated to the rate of combustion in the exact amounts required. This pre-heated air with its original oxygen sweeps across the fuel bed until it reaches a water-containing Curtain cast in a section near the back, which forces it to mingle with the gases as they pass beneath it. Then they hit the lower, solid portion of a water-filled bridgewall (which requires no fire-brick), mix completely. RADIATOR LOADS AND DIMENSIONS Boiler No. : Height of Water Line. Inches 1Crate Area Sq. F t | Outlets Height Feet Dimen sions Inches Direct Cast Iron Radiator Loads. Sq. Ft. Steam Water 740 840 940 1040 1140 1240 1340 2500 3000 3500 4050 4500 4900 5400 4125 4950 5775 6680 7425 8085 6910 49 49 49 49 49 49 49 3 O* Si-S-S Min. Chim ney Sizes 8.15 10.40 2-5' 50 I8x 18 10.31 13.30 2-5* 55 18x20 10.31 13.30 2-5* 60 20x20 12.47 16.30 3-5' 65 20x24 14.63 19.25 3-5' 70 24x24 14.63 19.25 VS* 70 24x28 16.79 22.20 V5' 75 24x28 See Guaranteed Heating. Height including trimmings 71 inches; width 75 inches. Equipped with combination top and back outlet smoke- hood. and every smoke-producing particle is turned into heat before the gases pass through two openings in the upper portion of the bridgewall Back to the front of the boiler they must go. through two bottom flues and then return through two top flues, heating water every inch of the way, before they pass out of the boiler. Without the foregoing facts the performance chart shown below might be bard to believe. Any fair test will substantiate this curve of efficiency that has no equal in the smokeless boiler field. PERFORMANCE CURVE No. 1140 CAPITOL BOILER United States Radiator Corporation Boilers and Radiators Capitol Smokeless Boilers--27" Series Smokeless boilers are as desirable for large residences and small apartments as they are for largo1 commercial buildings, since smoke is a particular nuisance around homes. In addition, smokeless operation means greatest fuel economy in small installations as well as large. To meet this large and growing demand; the Capitol 27-inch series Smokeless Boiler has been designed. Capitol ease of operation and mechanical certainty of proper auxiliary air supply, important in the larger sixes, become a necessity in a small installation which has not an attendant who devotes as much time to its care. Any fireman can shovel soft coal into .a 27-inch scries Boiler and operate it smokelessly. No special skill or atten tion is required. Auxiliary air is admitted through fixed openings in the fire door which never need adjusting. Together with the volatile gases it sweeps toward the back. They meet an inverted bridgewall or curtain. Are deflected downward. As they pass under, they receive an additional supply of oxygen from a slot in the curtain. Then, hitting the rear wall, the oxygen mixes thoroughly with the gases and com bustion is completed in the back of the fire box. All the smoke is burned before the gases enter the flues. Twice more they travel the full length of the boiler, getting the utmost heating value out of every pound of coal Boiler No. Height of Water Line, Inches Grate Area i Sq. Ft. Coal Ca pacity, Cu. Ft. Height Feet Dimen sions Inches RADIATOR LOADS AND DIMENSIONS Direct Cast Iron Radiator Loads, Sq. Ft. Min.Chim ney Sizes Steam Water 3 o 627 727 827 927 1027 1127 1227 1000 1225 1450 1675 1900 2125 2350 1650 45'/, 5.32 7.93 2-4' 40 12x12 2020 45'X 6.55 9.75 2-4' 40 12 x 12 2390 45'4 7.78 11.37 3-4' 45 12x12 2760 45'h 9.01 13.09 3-4' 45 12x16 3135 45'/, 10.24 14.81 3-4' 45 12 x 16 3505 45V? 11.47 16.53 3-4' 50 12x16 3875 4% 12.70 18.25 4-4' 50 12 x 16 See Guaranteed Heating. Height including trimmings 68% hi.; width 50% in. Specify if back or top outlet smoke hood is required. Banking the fire is as simple as stoking it When the main drafts are closed, the green coal cokes slowly in the deep fire box. An incandescent bed is formed that quickly ignites the fresh fuel shoveled in the next morning and swiftly floods the house or apartment with grateful warmth. Every detail in the Capitol 27-inch series Smokeless Boiler is likewise designed for easy and reliable operation. Even the flue doors are extra large, a convenience in keeping the flues clean, although Capitol smokeless combustion minimises the soot, the heat losses it causes, and the task of cleaning it out. The high heating efficiency of Capitol 27-inch series Smokeless Boilers over a remarkably wide range of operating capacities, is clearly shown in the authoritative performance curve given below. PERFORMANCE CURVE No. 1127 CAPITOL BOILER No. 827 Capitol Smokeless Boiler CAPITOL FIVE COLUMN RADIATORS Surface Hj 37' 32' 26' 23' 20* c-fj Height Height Height Height Height 5 sq. ft. 4.3 sq. ft. 2.9 sq.ft, 2.5 sq.ft, per Sec. per Sec. per Sec. per Sec. per Sec. 25 3 7'/, 4 10 5 12'/, 6 15 ft7 17V, 20 9 22V, 10 25 11 271/* 17 30 13 32/j 14 35 15 57V, 16 40 17 42Vi 18 45 19 47'/2 20 50 21 52V2 72 55 23 57V, 24 60 25 62>/2 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 8.6 12.9 17.2 21.5 25.8 30.1 34.4 38.7 43.0 47.3 51.6 55.9 60.2 64.5 68.8 73.1 77.4 81.7 86.0 90.3 94.6 98.9 103.2 107.5 6.6 10.2 13.6 17.0 20.4 23.8 27.2 30.6 34.0 37.4 40.8 44.2 47.6 51.0 54.4 57.8 61.2 64.6 68.0 71.4 74.8 78.2 81.6 85.0 5.8 8.7 11.6 14.5 17.4 20.3 23.2 26.1 29.0 31.9 34.8 37.7 40.6 43.5 46.4 49.3 52.2 55.1 58.0 60.9 63.8 66.7 69.6 72.5 5.0 7.5 10.0 . 12.5 15.0 17.5 20.0 22.5 25.0 27.5 30.0 32.5 35.0 37.5 40.0 42.5 45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5 Allow % inch, ^ each bushing in estima ting length ofradiators. Each section is 8% inches wide. Width of legs, 8% inches. Above Radiators tapped 1% inches at top and bottom. Distance from floor to center of lower tap ping, 4% inches. Distance from floor to center of upper tap ping: 37' Height ,, 35%' 32' Height.__ 30%' 26' Height..... 24%' 23' Height___21%' 20* Height___18%' 377