Document jmzmxpjv8ymQeZvn6ov16G1O

Boilers and Radiators National Radiator Companv General Offices: JOHNSTOWN-, PA. New York, 55 W. 42nd Street Philadelphia, 121 N. Broad Street Baltimore. 2622 Frisby Street Washington, 2205 Fifth St.. N.E. .. Branches Richmond, 3032 Norfolk Street Pittsburgh, 1402 Arrott Building Cleveland, 6308 Kinsman Road Cincinnati. Cor. Spring Grove and Elmira Aves. Chicago, 2445 N. Keeler Ave. Johnstown, Pa. Plants New Castle, Pa, Trenton, N. J. Warehouses New York . New Rochelle G----a--r--d--e--n---C---i-t--y- --Baltimore Richmond Cleveland Cincinnati Washington Chicago Manufacturers of National Smokeless, Novus Upright and Sectional, Acme Round, Radium Gas and Hot Water Supply Boilers, and Aero Radiators. Three-Column Four-Column Five-Column. Seven-Column Patents Applied For RADIATORS Awarded Gold Medal at Sesqui-Centennlal, Philadelphia, Pa., 1926 Legless Radiator The Aero Radiator was designed by Engineers with more than 30 years experience in radiator manufacture. In the Aero line is represented a real effort to simplify the multiplicity of radiator patterns and heights. Large buildings are now warmed with the more modern, efficient, economical and easily controlled vapor and vacuum systems. These necessitate the use of a radiator pattern with top and bottom nipple connecUon--the type knwn as a water section. The demand for the straight steam section, with bottom nipple connection only, is consequently negligible. The Aero Radiator is made in one type only--the top and bottom- nipple connected section. It is tapped top and bottom both ends. The top tappings are plugged and the bottom tappings bushed to size required. All radiators are vented for both steam and hot water. Owe vent is plugged. Any Aero Radiator can be used for either steam, hot water or Window Radiator VaPAero Radiators are made in four patterns--Three. Four. Five and Seven Column. A total of 18 heights comprises the entire line. Roughing-in measurements are standard. All sections measure in. from center to center. -. The Three-Column pattern is in. wide, the Four Column is 6% in wide the Five-Column pattern 8% in. wide and the Seven-Column pattern 12 in. With these widths and standard roughing-in measure ments they can be used on any standard specification. Aero Radiators are authoritatively rated-by Cornell University, Ithica, N. Y. 414 National Smokeless Boiler - - Patented Sectional View ......... " SIZES, RATINGS.AND MEASUREMENTS O utlets No. and Size . Size Steam Water Rating Rating Number Sections Number G ra te s Fire Height Chamber Water Area Line Sq. Ft. Inches* Height Top Outlet Inches Height Includ ing Trim mings* Width Boiler Inches Width Length Includ Includ ing ing Trim Smokemings hood Inches* Inches Size Base Inches cio oa CO ' j | 25- 8 25- 9 25-10 25-11 25-12 2450 2775 3100 3425 3750 4000 4550 5100 5650 6200 8 9 10 11 12 31- 8 31- 9 31-10 31--11 31-12 31-13 3600 4050 4500 4950 5400 5850 5925 6675 7425 8175 8925 9675 8 9 10 11 12 13 36- 8 36- 9 36-10 36-11 36-12 36-13 36-14 36-15 36-16 5200 8600 5900 9750 6600 10,900 7300 12,050 8000 13,200 8700 14,350 9400 15,500 10,100 16,650 10,800 17,600 8 9 10 It 12 13 14 15 16 48- 9 48-10 48-11 48-12 48-13 48-14 48-15 48-16 9600 15,825 10,775 17,775 l1,950 19.725 13,125 21,675 14,300 23,625 15.475 25,575 16,650 27,525 17,825 29,475 9 10 U 12 13 14 15 16 5 6 7 8 9 5 6 7 8 9 10 5 6 7 8 9 10 10 11 II 6 7 8 9 10 10 II 11 8.43 9.59 10.75 11.9! 13.07 11,. 93 13.62 15.31 17.00 18.69 20.38 16.00 18.25 20.50 22.75 25.00 27.25 29.50 31.75 34.00 28.88 32.43 35.98 39;53 43! 08 46.63 50.18 53.73 49 49 49 49 49 52 52 52 52 52 52 60'/. 60'/, 60'/, 60'/, 60'/, 60'/, 60'/, 60'/, 60'/, 68 68 68 68 68 68 68 68 57'/, 57'/, 57'/, 57'/, 57'/, 61 61 61 61 61 61 70 70 70 .70 70 70 70 70 70 80 80 80 80 80 80 80 80 65% 65% 65% 65% 65% 71% 71'/* 71'A 71% 71'/, 71'/, 78J/, 78%' 783/, 783/, 78?y4 783/. 783/, 783/, 89 89 ` 89 89 89 89, 8989 36'/, 36% 36% 36% 36% 50 50 50 50 50 50 56 56 56 56 . 56 56 56 56 56 67 67 67 67 67 67 67 67 4oy4 40% 40% 4034 >/, 54 54 54 54 54 54 60 60 60 60 60 60 60 60 60 71 . 71 71 71 71 71 71 71 67% 745/, 813/, 883/, 955/, 273%, 535% 273%, 60>% 273%, 675% 273%, 745% 273%, g,5% 73 80</2 88 95% 103 110% 333/4X 59 3334, 66% 333/4X 74 333/,, 8Ii% 333Ax 89 33>%, 96% 79'/,' 87% 95-/, 104% 112% 121 1293/, 1373/4 146% 413/,, 65% 413/6x 73% 4U/,, 813% 413%, 90% 4U/,, 985% 413/8x107 4I3/,,II53% 413%, 1233/, 413%,I32'% 109% 119% 130'A 141% 15134 1623/8 173 1835/, 53%x 89'A 53%* 99% 537/8*110'/? 537/8x121% 53'/,, 131 537/8x1423/8 537/8x153 53'%,!635% 3--4* 3-4* 3-4' 3-4' 3-4' 12 12 12 12 12 3-5' 3-5' 3-5' 3-5' 3-5' 3-5' 15 15 15 15 15 15 3-5' 3-5' 3-5' 3-5' 3-5' 4-5' 4-5' 4-5' 4-5' 16 17% 17% 17% 17% 17% 17% 17% 17% 3-6' 3-6' 4-6' 4-6' 5-6' 5-6' 5-6' 5-6' 20 20 20 20 20 20 20 20 'Applies to steam boilers only. Sylph-Oil Air . Regulator Patents Applied For The National Up-Draft Smokeless Boiler will conform to any smoke ordinance. Burning smoke depends upon the temperature to which the air discharged over.the fire is preheated. The National Preheating Air device heats air to in excess of 1000 deg. It is discharged into the smoke and gases as they pass over the Refractory Bridge wall ` into the Combustion Chamber. The National Smokeless Boiler will clear to the No. 1 Smoke Screen in from 10 to 15 seconds and to a clear stack in less than one minute after firing a charge of green coal. National Smokeless boilers show an average increase of 28`per cent in evaporation on the same fuel charge and consequently are very economical in operation. The volume of preheated air necessary to burn smoke varies with the state of com- bustion. The air should be gradually decreased and cut off almost completely during a period of about 20 minutes from the time fuel is charged. Unless this is done the preheated air has a - tendency to. chill rather than increase the gas temperatures and the boiler efficiency and evaporation is decreased. . The Sylph-Oil Regulator .operates the Preheating Air Device automatically and. ' positively can be regulated to close the air intake in any time from one half-a minute to one hour after fuel is charged. 415