HEATING VENTILATING AIR CONDITIONING GUIDE 1943 378 - W n CHAPTER 19.

HEATINC VENTILATING AIR CONDITIONING GUIDE 1943 on the driving motor, or fan, may be changed to vary the speed of the fan thus altering the air volume.

Heating Systems Hoffman Specialty Co., Inc.

Publications Plumbing and Heating Journal Published by PLUMBING AND HEATING JOURNAL, INC. 45 West 45th Street, New York City PLUMBING and Heating Journal is edited to furnish a well-rounded, efficient service to the men engaged in the plumbing, heating, venti lating and air conditioning fields.

T able 7.

HEATINC VENTILATINC AIR CONDITIONING GUIDE 1944 tests are conducted at the A.G.A.

HEATING VENTILATING AIR CONDITIONING CUIDE 1944 of heating surface to grate area.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1944 order to prevent flooding of the lower dehumidifiers.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1944 Table 5.

HEATINC VENTILATING AIR CONDITIONING CUIDE 1944 of the smaller dampers are usually* made of stock.

HEATING VENTILATINC AIR CONDITIONING GUIDE 1944 Homes are almost universally supplied with lighting current of 115 volts, which can only be used economically for small heaters.

412 Chapter 22 1945 Guide -blowers (filters optional)rand coilsr'-Usually used where'there'is'aii existing radiation or ventilating system.

542. ' Chapter 29______________________________ . '_________________________ 1945 Guide.

64 CHAPTER 3 1946 Guide W -- 0.007910.

420 _______________ ___________CHAPTER 23 ,1946 Guide return mains need not be pitched toward the boiler to maintain steam circulation, they should be pitched for drainage.