Document q30dX3QNVDO9JowDpQn3ZGY8K

Heating Systems. Boum. sti Johnston Brothers, Inc. ESTABLISHED 1864 Member Ferrysburg, Michigan Reg. U. S. Pol. Off. "PACKAGED" STEAM BOILER UNIT FULLY AUTOMATIC HEAVY OIL WATER-BACK TYPE, FORCED DRAFT, THREE-PASS, TROUBLE-FREE, EFFICIENT. Rating guaranteed and overloads readily obtained. HIGH PRESSURE TYPE from 50 to 500 hp and pressures of 125, 150 & 200 lb psi. LOW PRESSURE TYPE for heating; 15 lb pressure, and EDR rating from 2190 sq ft to 42,500 sq ft steam. A.S.M.E. Code construction. Ask for Bulletin 505. Firebox Heating Boiler, Compact Type. Oil, Gas. Stoker or Hand Firing. Three-Pass 15 lb pressure., A.SM.E. Code. Capacities 2190 to 42,500 sq ft. SBI rating. Ask for Bulletin 1500. Standard Scotch Boiler Water-back Type, Natural Draft. \ POWER, PROCESS, HEATING. 25 to 300 hp and pressures 15 lb to 200 lb psi. For mechanical firing with Coal, Gas or Oil. Over loads up to 200 per cent of rating readily developed. Oil or Gas firing equipment and controls can be installed for completely automatic operation and in emergency or fuel scarcity, can be readily con verted to Coal firing. Ask for Bulletin 4000 1274 Heating Systems Boilers, steel Mt. Hawley Mfg. Co. Mt. Hawley Airport, Peoria, Illinois Manufacturers of ASME Oil and Gas-fired Boiler-Burner Units, Water Heaters, Conversion Oil Burners New Spiral Tube Design (Pat. applied for) extracts more heat; lowers stack temperature approximately 100 deg. All-Steel. Sides and top heavily insulated. Wet base. Pre-cast combustion chamber or tankless heater easily replaced. Underwriters Approved oil burners; AGA approved gas units to burn natural, manufactured, or LP gas. Simplified Installation. Completely assembled at factory. Water Heaters. All models available galvanized as water heaters for commercial and institutional use. SIZES AND SPECIFICATIONS--MT. HAWLEY BOILER-BURNER UNITS Boiler Model Number DOMESTIC No. 10 No. 16 No. 25 COMMERCIAL No. 40 No. 55 No. 75 No. 100 540 920 1400 2240 3072 4160 5600 H. P. - 340 104000 2-3 So. Ft Heating Surface ............ 20 Capacity of blr-gph dely-100o rise when used as Water Heater. 120 Water Capacity of Boiler, gal. 20 *G. P. ing Coil (tankless type) .......... Mt. Hawley burner model recoin. Firing Rate Recommended, G. P. H 120 G-2 .751.00 Boiler Maio Shell Gauge of Steel Height.......... Tubes No. in each size blr.......... Flue Heads ff Gauge of Steel__ Jacket W XT 48$*' 2' 12 ga. 10 5/16' Square 20M' 22>*' 52M' Heieht Water Line....................... 32)4' eteam UuUet^Height above floor V 39XT Diameter of -eturn....................... bmoke Uutlet^Heightabove floor 2" 8* 43)4' Diameter Burner Opening........ 4W Chimney Size Recommended... 8x8* 612 GO 672 575 172000 4-6 32 181.5 27 120 G-2 1.001.65 20)4' $*' 48$*' 2' 12 ga. 19 5/16' Square 23)4' 25$*' 52)4' 32$*' 2" 39' 2* 8' 43K' 4$*' 8x8' 763 60 823 875 261000 6-8 43 275 37 280 G-4 1.652.50 24$*' X* 48$*' V 12 ga. 28 5/16' Square 27H* mi' 52$*' 32)4' r 39$*' r 9' 43$*' w 9x9* 1009 72 1081 1400 417000 10-12 80 440 62 320 G-4 2.504.00 29' X* 57$*' 2" 12 ga. 47 5/16' Round 31' 59H' . 42* 2)4' 49* 2)4' lO' 51)4' 4W 12x12" 1530 72 1602 1920 574000 12-16 2600 782000 18-22 131 } 174 3500 1043000 232 605 825 1100 106 155 194 450 G-6A 4.005.50 34' X" 67' 2" 12 ga. 65 5/16' Round 36' -- 69' 49)4' 3' 57$*' 3' 12* 60X' w 12x16* 2280 82 2362 600 G-6B 600 G-6B 5.507.50 39' $4 79* 2' 12 ga. 88 5/16' Round 41' 7.5010.00 **K $* 79' 2' 12 ga. 5/16' Round 46)4' 81)4' 53' 81)4' 53' 4' 4' 67' 67' 4' 4' 12' 71)4' 12* 71$*' w 16x16' SW 16x16' 2700 3350 82 2782 ----3-4-3-2-- * Estimated--Based on 180 boiler water, 100 temperature rise. Boiler shipping weights are estimated since almost every shipment will vary in weight due to lumber and building of the crate. Write for complete specifications on Mt. Hawley Boiler-Burner Units and gun-type oil burners--0.65 to 20.0 gph. New Mt. Hawley high-efficiency combustion head especially designed for catalytic oils available. 1275