Document re79zo09j1pY28b7JBQR0rv8r

Heating Systems ______________________________ Connectors The National Radiator Company AMODERN DESIGN HEATING EQUIPMENT Johnstown m Pennsylvania Baltimore. . Boston.......... Chicago........ New York. Branch Offices ........ 2100 St. Paul Street ........ 620 Newbury Street .400 West Madison Street ........ GO East 42nd Street Philadelphia.......................... 401 North Broad Street Pittsburgh........................................125 First Avenue Richmond..................................... 308 West Cary Street Washington....... ............ 4034 Georgia Avenue, N.W. NATIONAL HEAT EXTRACTOR CAST IRON BOILERS. The distinguished family of National Heat Extractors was designed to fit the requirements of automatic heating. National Heat Ex tractors are provided with many features to insure high oper ating efficiency and maximum fuel economy. These include extended heating surface, multiple-flue section construction, effec tively insulated j acket and doors, and heat conserver baffles. Con vertible from hand to automatic firing after installation and readily adaptable to any desired fuel or method of firing. Wide range of both storage and tankless domestic water heaters available. NATIONAL OIL HEATING UNITS, cast iron or steel, provide complete "one package" equipment designed for maximum effi ciency and top performance with this fuel. Complete automatic ' controls, prefabricated combustion charnber of proper proportions, quiet burner for rear firing and attractive all-enclosing jacket. NATIONAL GAS BOILERS are modern, compact and designed exclusively for gas firing. Cast iron sections for long life and dependability. Tapered flues, long zigzag fire travel and heavy insulation insure efficiency and economy. "300" and "400" Series EEZE HEAT EXTRACTOR BOILERS Boiler Series Net I-B-R Ratings, Sq Ft Steam Water 100 200 300 400 Oil Heating Unit 500 OIL HEATING UNITS 170 to 410 350 to 880 700 to 2300 2500 to 6000 4000 to 10300 270 to 660 560 to 1410 1120 to 3680 4000 to 9600 6400 to 16480 GAS BOILERS Gas Boiler Type of Unit Net Ratings. Sq Ft Steam Water Boiler Series Net Ratings, Sq Ft A.G.A. Approved Steam Water 100 Series Cast 200 Series Cast Residential Steel.. 230 to 410 400 to 880 275 to 700 370 to 660 20 and 22 640 to 1410 440 to 1120 30 and 33 40 and 44 1282 109 to 390 353 to 9S3 445 to 1920 174 to 624 5G5 to 1570 711 to 3070 The National Radiator Company H__eati.ng Systems BRoaidleiarsto,rs, Convectors Sled Boiler NATIONAL STEEL BOILERS meet all the requirements of the SB I Testing and Hating Code and the ASMS Boiler Construc tion Code. All are inspected and approved by a representative of the Hartford Steam Boiler Inspection and Insurance Company ' The 18 in. and 23 in. Series RESIDENTIAL STEEL BOILERS (for oil or gas) are designed for smaller homes. The 26 in., 29 in., and 39 in. Series RESIDENTIAL STEEL BOILERS for Hand and Automatic Firing are designed for large RESIDENTIAL STEEL BOILERS homes, apartments, and some commercial Boiler Series SBI Net Ratings, Sq Ft installations. Can be furnished unjacketed, Steam Water or with modernly 275 to 700 styled heavily insu 26', 29', and 39'... 700 to 3000 440 to 1120 1120 to 4800 lated jacket. NATIONAL COMMERCIAL STEEL BOILERS are designed to supply the heating needs of larger buildings. Their firebox proportions conform with the recommendations of the Stoker Manufacturers' Association. Hand fired boilers may be con verted to stoker, oil, or gas firing at any time after installa tion. S6"-t90-39' Steel Boiler COMMERCIAL STEEL BOILERS SBI Net Ratings, Sq Ft Boiler Type Steam Water Automatically fired.............. 3000 to 35000 Hand fired___ 2500 to 29170 4800 to 56000 4000 to 46670 FPliil JiSgfetsift Art Baseboard National Art Baseboard--Re places customary wooden base board. Two types available, BF (flush-to-wall) and BR (re cessed under plaster). Heating element consists of a helical copper fin bonded to a copper tube. Designed for use with forced circulation hot water systems. National Art-Convector--A non-ferrous convector, for flush and semi- or full-recessed installation. Aluminum fins bonded to copper tubing comprise the heating element. Enclosures are made in a variety of types for residen tial or commercial in stallation. Art Convector National Aero Convector-- Heating element is made of cast iron with fins cast in tegral'with tubes. Adapt able to any type of heating system. Several types .are available for residential or commercial installation. NATIONAL ART RADIATORS--Blend inconspicuously with most decorative schemes. Compact proportions require minimum floor space. A wide variety of sizes and ratings can be furnished. 1283