National boilers, radiators, and specialties: catalog no. 26 (1920)
National Radiator Company · National Radiator Company · leaf 31
3-3 2-3 3-7 82x25 Height to center of supply tapping, 40% inches. H: tapping, 16J^ inches. Distance from center of supplyping 24Ji inches. Height of boiler, 46 inches. Size gas9 to 12 sec, \% in.; 13 to 20 sec, \y2 in. List pnce repairs, page 100. Covering, see page 104. eight to center of returnto… … Combination Gas and Coal Heating Gas and coal boilers can be conveniently yoked together andoperated either separately or as one unit for heating purposes.By such an arrangement both boilers can be utilized in extremelycold weather or the coal boiler is ready for instant service inthe event of any…
