National boilers, radiators, and specialties: catalog no26 . Sec. per Sec. per Sec. 234 5 121824 101520 9 11* 7y2 11H15 6 9 12 4y2 5 12 H 30 25 22 y2 18^ 15 11H 6 15 36 30 27 22 y2 18 13^15M 7 17,H 42 35 31 y2 26K 21 8 20 48 40 36 30 24 18 9 22 H 54 45 40J/2 33^ 27 20^ 22 y2 24 X27 10 25 60 50 45 37 y2 30 11 12 27 y2 30 66 72 5560 49 X54 41M45 3336 13 32 J4 78 65 58 y2 48 H 39 29 H 14 1516 35 37 y2 40 849096 7075 80 63 67 y2 72 52 y2 56 X60 4245 48 31 H33 %36 17 42 M 102 85 76 H Q3% 51 38 ^ 181920 45 47 H50 108114120 9095100 81 85 y2 90 67 y2 71H 75 545760 40 y2 42%45 21 52 y2 126 105 94 y2 78
National boilers, radiators, and specialties: catalog no26 . Sec. per Sec. per Sec. 234 5 121824 101520 9 11* 7y2 11H15 6 9 12 4y2 5 12 H 30 25 22 y2 18^ 15 11H 6 15 36 30 27 22 y2 18 13^15M 7 17,H 42 35 31 y2 26K 21 8 20 48 40 36 30 24 18 9 22 H 54 45 40J/2 33^ 27 20^ 22 y2 24 X27 10 25 60 50 45 37 y2 30 11 12 27 y2 30 66 72 5560 49 X54 41M45 3336 13 32 J4 78 65 58 y2 48 H 39 29 H 14 1516 35 37 y2 40 849096 7075 80 63 67 y2 72 52 y2 56 X60 4245 48 31 H33 %36 17 42 M 102 85 76 H Q3% 51 38 ^ 181920 45 47 H50 108114120 9095100 81 85 y2 90 67 y2 71H 75 545760 40 y2 42%45 21 52 y2 126 105 94 y2 783^ 63 47 H 2223 55 57 y2 132138 110115 99 103 y2 82 y286 H 6669 49 y2 51 % 24 60 144 120 108 90 72 54 25 62 y2 150 J25 H2H 93 H 75 5QH 26 65 156 130 117 97M 78 58 H 60M 27 67 y2 162 135 121 y2 101H 81 28 70 168 140 126 105 84 63 29 72M 174 145 imy2 10S3^ 87 65 % 30 75 180 150 135 112H 90 67 y2 3132 77 y2 80 186192 155160 139H144 116^120 1 93 96 69 H 72 tAdd lA inch to length for each bushing. 39 NATIONAL PREMO RADIATORS Four-Column Hot-Water and Steam Type. National Premo Radiators tapped 2 inches and bushed tosizes required. Width of radiator, 11^ inches. Width of feet,12 inches. Assembled with 2-itich National Push Nipples ofmalleable cast-iron. Regular tappings, see page 43. 40 NATIONAL PRE MO RADIATORS ? OlAt ;s r u ur-u oiumr i nag rators s • tLength Sq jiare Feet - - Heating Surface No. of 45-in. 38-in. 32-in. 26-in. 22 in. 18-in Sec-tions 3 m. per Sec. Height10 Height8 sq. ft. Height6M sq. ft Height5 sq. ft. Height4 sq. ft. Height3 sq. ft. per Sec. per Sec. per Sec. per Sec. per Sec. per Sec. 2 6 20 16 13 10 8 o 3 9 30 24 19 M 15 12 9 4 12 40 32 26 20 16 12 5 15 50 40 32 H 25 20 15 6 18 60 48 39 30 24 18 7 21 70 56 45^ 35 28 21 8 24 80 64 52 40 32 24 9 27 90 72 58 }i 45 36 27 10 30 100 80 65 50 40 30 11 33 110 88 nvb 55 44 33 12 36 120 96 78 60 48 36 13 39 130 104 84 3^ 65 52 39 14 42 140 112 91 70 56 42 15 45 150 120 97H 75 60 45 16 48 160 128 104 80 64 48 17 5
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsteambo, bookyear1920
