National boilers, radiators, and specialties: catalog no26 . The Honeywell Vapor Relief is designed andconstructed to be placed on atmospheric vaporheating boilers. This extremely simple and inexpensive devicecontains no valves or mechanical parts of anykind —just three open tubes through whichvapor and water circulate when the relief isoperating. It is made entirely of cast iron intwo parts and will last indefinitely, With the Honeywell Vapor Relief properlyinstalled it is unnecessary to place check valvesin the return mains near the boiler to preventwater from backing out under pressure, ast
National boilers, radiators, and specialties: catalog no26 . The Honeywell Vapor Relief is designed andconstructed to be placed on atmospheric vaporheating boilers. This extremely simple and inexpensive devicecontains no valves or mechanical parts of anykind —just three open tubes through whichvapor and water circulate when the relief isoperating. It is made entirely of cast iron intwo parts and will last indefinitely, With the Honeywell Vapor Relief properlyinstalled it is unnecessary to place check valvesin the return mains near the boiler to preventwater from backing out under pressure, asthe Honeywell Vapor Relief will relieve thepressure at twelve ounces without any pos-sibility of sticking. List Prices Honeywell Vapor Regulator for any size boiler , . ,$45 .00 Honeywell Vapor Relief, \\i inches for 1200 sq. ft. or less 8 .00 Height, 31 inchesHoneywell Vapor Relief, 2 inches for over 1200 sq. ft Height, 31 inches 80 NATIONAL HEATING SPECIALTIES Minneapolis Tank Regulators. This device has the same electrical construction and is regu-lated in the same manner as the Minneapolis Heat Regulator —the only difference being in the extension. In connection with the motor, it controls valves, dampers,etc., for the regulation of hot water, steam, bake ovens, vul-canizers, etc. The extension is put through the side of boiler or other recep-tacle and firmly fastened into place by the screw thread, therebymaking a perfectly tight joint, having the case and dial outside. This regulator is used extensively in apartments, hospitals,public buildings, or any place where hot water is required through-out the year. Prevents water boiling and is a fuel saver. Ifnecessary can be made to a range of 400 degrees Fahrenheit. Size of thermostat, 4 inches. Length of extension, 2 longer extension is required, it can be furnished at an additionalcharge. List prices, see page 83. Important Note:—Order by Model number and if Electric,specify D. C. or A. C. Our A. C. Moto
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsteambo, bookyear1920
