Document 4Jw6rg4xkBJqonkdwNjBne6ZN

Heating Systems Boilers, Radiators, Convectors, Baseboard, Unit Heaters The National Radiator Company MODERN DESIGN HEATING EQUIPMENT MKJohnstown Pennsylvania Branch Offices: Baltimore, 2100 St. Paul Street Boston, 620 Newbury Street Buffalo, 17 Wells Street Chicago, 400 West Madison Street Detroit, 6736 Twelfth Street*New York, 60 East 42nd Street Philadelphia, 1218 Cherry Street Pittsburgh, 125 First Avenue Richmond, 308 West Cary Street San Francisco, 681 Market Street Washington, D. C., 4043 Georgia Avenue, N.W. 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 bring 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. ut00" Series "300" and "400" Series HEAT EXTRACTOR BOILERS Boiler Series Net I=B=R Ratings, Sq Ft Steam Watei OH Heating Unit 100 200 300 400 500 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 3600 6400 to 16480 GAS BOILERS Gas Boiler Type of Unit 100 Series Cast Iron..................... 200 Senes Cast Iron..................... Residential Steel. Net Ratings, Sq Ft Steam Water 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 Net Ratings, Sq Ft A JGA. Approved Steam Water 110 to 390 355 to 985 445 to 1920 1195 to 9690 205 to 715 650 to 1725 810 to 3240 2080 to 15505 1398 The National Radiator Company Heating Systems o'anils' SledBoUer 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 a boiler 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 RESI DENTIAL STEEL BOILERS for Hand and Automatic Firing are designed for larger installations. The Commer cial Series are adaptable to automatic or hand firing and are used for the largest installations. Commercial Steel Boiler RESIDENTIAL STEEL. BOILERS Boiler Scries 18' and 23'............ 26*, 29', and 39'... SBI Net Ratings, Sq Ft Steam Water 570 to 3000 440 to 1120 910 to 4800 COMMERCIAL STEEL BOILERS Boiler Type .Automatically Hand fired............. SBI Net RatingB, 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 or gas-fired heat ing unit for small homes. An integral tankless heater provides domestic hot water. Unit also available with white enclosing cabinet. SB1 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. 1399 Art Radiator