Document zZzKxwbEEK9aZmw1bxbd8jkn

Heating Systems Boilers, Radiators. Convectors, Accessories The National Radiator Company MODERN DESIGN Johnstown A HEATING EQUIPMENT Pennsylvania Branch Offices: Bm.tq.obe, 2100 St Paul Street Boston. Ne^ury Sti^t .Bottalo, 17 Wells Street Cbicaoo, *00 West Madison Street Detboit, 0736 Twelfth Street djjw Philadelphia. 1218 Cherry Street PrrrsBOBQH. 125 Fust Avenue*RiaiMOND,308 West Cary Street San Francisco, 681 Market Street "Washington, D. C., 4043 Georgia Avenue, NW. national heat extractor cast iron boilers. Designed to fit the requirements of automatic heating, Na tional Heat Extractors are provided with many features to insure high operating efficiency and maximum fuel economy. These include extended heating surface, multiple-flue section construction, effectively insulated jacket and doors, and heat conserver baffles. Convertible 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 efficiency and top performance with this^ fuel. Complete automatic controls, prefabricated combustion chamber ^ 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. "500" and **400" Scries HEAT EXTRACTOR BOILERS Boiler Series Net I-B-R Ratings. Sq Ft Steam Watei 100 200 Oil Beating Unit 300 400 500 OIL HEATING UNITS 170 to 470 350 to 830 700 to 2300 2500 to 6000 4000 to 10300 270 to 855 560 to 1560 1120 to 3835 4000 to 9600 6400 to 16480 GAS BOILERS Cm Boiler Type of Unit Net Ratings, Sq Ft Steam Water j Net Ratings, Sq Ft A.G.A. Approved Boiler Series 1 Steam Water 100 Series Cast 200 Series Cast Residential Steel.. 230 to 470 400 to 880 275 to 700 430 to 855 730 to 1560 440 to 1120 | 20 and 22 30 and 33 40 and 44 55 110 to 390 355 to 985 445 to 1920 1195 to 9690 205 to 715 650 to 1725 810 to 3250 2080 to 15505 1340 The National Radiator Company Heating Systems Radiators, Boilers, Convectors, Accessories fs'-ja'-js* Bud Boner NATIONAL STEEL BOILERS meet all the requirements of the SB I Testing and Rating Code and the ASME Boiler Construction Code. All are inspected and approved by a representative of the Hartford Steam Bailer 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 Auto matic Firing are designed for larger installations. The Commercial Senes are adaptable to automatic or hand firing and are used for the largest installations. Commercial Steed Boiler RESIDENTIAL STEEL BOILERS COMMERCIAL STEEL BOILERS Boiler Series 18' and 23'........... 28', 29*, and 39*... SBI Net Ratings, Sq Ft Steam Water 275 to 700 570 to 3000 440 to 1120 910 to 4800 Boiler Type Automatically Hand fired............. SBI Net Ratings, Sq Ft Steam Water 3000 to 35000 4800 to 56000 2500 to 29170 4000 to 46670 THE NATIONAL PACKET: A compact, all-in-one automatic oil-fired heating unit for small homes. An integral tank less heater provides domestic hot water. Unit also available with white enclosing cabinet. SBI Net rating 510 sq ft Water. The National Packet used with Na tional Art Baseboard provides a modern, low cost,' easy-to-install complete hot water heating system for small homes, motels, diners, stores, etc. Art Baseboard NATIONAL ART BASEBOARD--Re places customary wooden baseboard. Two types, BF (flush-to-wall) and BR (recessed under plaster). Heating ele ment consists of helical fin bonded to a copper tube. Designed for use with forced circulation hot water systems. NATIONAL ART CONVECTOR--A nonferrous 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 residential or commercial installation. NATIONAL AERO CONVECTOR-- Heating element is made of cast iron with fins cast integral with^tubes. Adaptable to any type of heating sys tem. 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. 1341 Art Radiator