Document qmvNBJDXEqxgJm9LVB66YgnmM

Boilers, Cast-Iron United States Radiator (orporation General Oiiices: Detroit. Michigan Branches and Sales Offices in Principal Cities Detroit, Michigan Illustrated above is the US-25 Boiler for horizontally fired oil burners. The high efficiencies of this boiler are due to a method of heat absorption through new type extended rib heating surfaces. The boiler is of the wet base construction which absorbs heat that would ordinarily be lost through the floor. Year 'round domestic hot water is provided. Construction is of cast iron. A heavy jacket and a thick blanket of rock wool completely insulate the boiler. CAPITOL FINCAST CONVECTORS Made entirely of cast iron. Made without joints. Cast in one piece. Many lengths and widths. Tappings, top, bottom and ends. Complete choice of enclosures. THE CAPITOL AIR CONDITIONER CAPITOL RADIATORS Capitol Radia tors give warmth where you want it and when you want it. Homes heated with Capitol Radia tors are comfor table, clean and healthful. Capitol Radia tors have the added advantage of as sembly with extra heavy malleable iron push nipples, machined with hair breadth precision, to form a tight, iron-to-iron joint. They need no gas kets, have no threads to rust, are taken apart and assembled with the greatest ease. For use in residences and small buildings Flexibility to meet the individual re quirements of the building is the keynote. of design in the Air Conditioner. The owner may have a completely air con ditioned building; he may have a partially air conditioned building with modern steam or hot water heating in less fre quented rooms. He may have a system that conditions the air in winter with a certain amount of cooling effect during the summer, due to circulation of air by a big 912 Boilers, Cast-Iron UnTtedStates Radiator (orporation General Offices: Detroit. Michigan Branches and Sales Offices in Principal Cities Detroit, Michigan CAPITOL RED CAP BOILERS CAPITOL SQUARE BOILERS FOR ALL FUELS Illustrated above is a Capitol Red Top Series "C" Boiler. These sectional, cast iron, all fuel boilers can be furnished either jacketed or unjacketed. Sections are con nected with precision-made slip nipples in . accurately machined ports and the in dividual sections are ground to permit an iron-to-iron gas-tight assembly. The large, smooth flueways are designed with out sharp turns reducing friction . . . permitting unrestricted gas travel. For easy cleaning, all flueways are fully-acces sible through the large front clean-out doors. Controlled internal water circu lation and large nipple ports insure com plete separation of water and steam. All Capitol Red Top Boilers are heavily in sulated against heat loss by a thick blanket of rock wool, reinforced with wire mesh to prevent slipping or sagging. To provide extra setting *9^ height or desired additional fur nace volume when used with automatic stokers, Red Top Boilers can be furnished with extra high steel bases (il lustrated below) which eliminate the necessity for pitting or build ing a brick or concrete base. Correctly de signed flue passages force the hot gases to circulate through every section. The deep firepot pro vides the extra space needed for a long firing period and good combus tion. The firepot walls assure a smooth, clean sur face for heat ab sorption. A second ary air vent in the fire door carries the air down between the door and the hot baffle plate where it is distributed over the surface of the fire.Here the hot oxygen mixes with the volatile eases aiding complete and smoke- PACIFIC STEEL BOILERS This Pacific Oil Burning Steel Boiler is of the Scotch Marine type with its com bustion chamber running the full length of the boiler. Thus the products of com bustion must travel three times the entire length of the boiler. The combustion chamber is amply large to permit com plete combustion before gases enter the tubes. It is shaped and proportioned for horizontal oil firing. The firing zone is completely surrounded by wafer-backed surfaces . . . contributing to greater efficiency. The Pacific is built with three inch tubes, fitted with flue gas deflectors to create the necessary turbulence so that maximum extraction of heat is effected. 913