Document ppd97x9M41Yy7dzqbaQkBQeYa

Air--------------------- Conditioning GjfCKtVoorf Industries, Inc, f Heating Division 7924 Riopelle Street Detroit 11, Michigan Tempered-Aire Unit Oil Burner Combustion Chamber Firing Unit TEMPERED-AIRE UNIT A high efficiency, direct fired heating unit incorporating a large-volume firebox, an integral economizer, a coordinated oil burner combus tion chamber firing unit, a flash-type humidifier, washable cloth filters, and a low speed, resilientmounted blower. The primary transfer of heat occurs in the large firebox, having its outlet at the bottom, through which the hot gases pass down into the economizer. Here the gases divide into long thin slices, within the economizer tubes. Each tube is swept at high velocity by cold return air from the blower. The rapidly flowing cool air absorbs a maximum of heat from the econo mizer surfaces. TYPE "O" OIL FIRING UNIT The burner and fire bowl combustion chamber are built together as an actual unit, with the back end of the fire bowl forming a windbox containing, air for combustion at sufficient pressure to offset the effect of draft variations. Air from the windbox passes through metering chutes, set at an angle to cause rotation. Both air and oil rotate and intermingle in a conical spray, resulting in a definitely controlled flame entirely contained within the fire bowl. OIL-FIRED Boiler-Burner UNITS An internally fired, downdraft, high efficiency Boiler-Burner Unit em ploying the same firing unit used in the Tempered-Aire Furnace-Burner Unit. Steam Type Boiler-Burner Unit Hot Water Type Boiler-Burner Unit The oil-fired Boiler-Burner Units are made in two types, an obround design having a steam chest for steam systems and a cylindrical design for hot water systems. The steam type is available with a built-in tankless water heater. The hot water type can be supplied with a domestic water storage tank having an integral water heater all contained within the boiler jacket. 872 Air Conditioning "? Airtherm Manufacturing Company 728 S. Spring Ave. St. Louis 10, Mo. THE ENGINEERED LINE OF UNIT HEATERS For Vertical Delivery AIRTHERM Direct-Fired UNIT HEATERS HEAT LARGE AND SMALL PLANTS ECONOMICALLY They require no costly pipe or duct work and can be installed in a few hours. The heat is evenly distributed and thrown out as far as 200 feet. About 80 per cent of the fuel energy is utilized. Airtherm Direct-Fired Unit Heaters do _not require any maintenance. All you need do is set the automatic controls. For coal, gas, and oil. Made in 6 sizes (300,000--1,500,000 Btu). AIRTHERM COPPER COIL, STEAM UNIT HEATERS Equipped with copper coils for longer life, durability, and resistance to corrosion. Individually controlled for economical operation. Deflectors are designed to give full efficiency from every ounce of steam expended. Write for bulletin' showing specifications of complete line. ENGINEERING SERVICE The Airtherm Mfg. Co. Engineering Department and District Representatives are at all times available for consultation. At your request we will place experienced engineering aid at your disposal. Repre sentatives in all principal cities. For Horizontal Delivery 873