Document 4JRNOLOaq9ebGroLNpgxx8Vdx

Healing Systems RdutiE, Con?ectors The National Radiator Company MODERN DESIGN A HEATING EQUIPMENT (HOJohnstown Pennsylvania Branch Offices: Baltiuoiie, 2100 St. Paul Street Buffalo, 17 Wells Street Detroit, 5736 Twelfth Street San Francisco, 681 Market Street Pittsburgh, 125 First Avenue Boston, 620 Newbury Street Chicago, 400 West Madison Street *New York, 60 East 42nd Street Richmond, 308 West Cary Street Washington, 4043 Georgia Avenue, N.W., Philadelphia, 1218 Cherry Street NATIONAL HEAT EXTRACTOR CAST IRON BOILERS. ~Th^ 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 jacket 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 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" Series HEAT EXTRACTOR BOILERS Boiler Series Net I-B-R Ratings, Sq Ft Steam Watei OU Heating Unit 100 200 300 400 500 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 Go, Boiler Type of Unit Net Ratings, Sq Ft Steam Water Bailer Series Net RatingB, 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 660 640 to 1410 440 to 1120 20 and 22 30 and 33 40 and 44 109 to 390 353 to 983 445 to 1920 174 to 624 565 to 1570 711 to 3070 1314 jhe National Radiator Company Boilers, Heating Systems NATIONAL STEEL BOILERS meet all the requirements of the SBI Testing and Rating Code and the ASME 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 RESIDENTIAL STEEL BOILERS are designed for larger installations. The Commercial Series are adaptable to auto Boiler Series SBI Net Ratings, Sq Ft Steam Water matic or hand firing and are used for the 18* and 23'............. 28', 29', and 39'... 275 to 700 700 to 3000 440 to 1120 1120 to 4800 te-.trsrsud BoHer largest installations. Boiler Type SBI Net Ratings, Sq It Steam Water Automatically 3000 to 35000 Hand fired-- 2500 to 29170 4800 to 56000 4000 to 46670 The National Packet Plush Jacket THE NATIONAL PACKET: A com pact, all-in-one automatic oil fired heating unit for small homes. An integral tankless heater provides domestic hot water. Unit also avail able with white enclosing cabinet. SBI Net rating 510 sq ft Water Commercial Steel Boiler NATIONAL ART BASEBOARD--Replaces customary wooden baseboard. Two types available, BF (flush-to-wall) and BR (recessed under plaster). Heating element consists of a helical copper fin bonded to a copper tube. Designed for use with forced circulation hot water systems. The National Packet used with National IArt Baseboard provides a modern, low cost all-inclusive, easy-to-install complete hot water heating in stallation for small homes, in dividual apartments, motels, Art Baseboard diners, stores, etc. NATIONAL ART CONVECTOR--a non-ferrous convec tor, 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--Heat ing element is made of cast iron with fins cast integral with tubes. Adaptable to any type of heating system. Several types are available for residen tial or commercial in- Art Convector . stallation. NATIONAL ART RADIATORS--Blend inconspicuously with most decorative schemes) Compact proportions require mini mum floor space. A wide variety of sizes and ratings can be Art Radiator 1315