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American Society of Heating and Ventilating Engineers Guide, 1926-27 The air handled may consist entirely of air taken in from the outside or it may consist partly of new air and partly of recirculated air.

American Society of Heating and Ventilating Engineers Guide, 1926-27 Table 101.

Index to Advertisers Page Sarco Co., Inc., 183 Madison Ave., New York, N.

American Society of Heating and Ventilating Engineers Guide, 1928 Tempcsature or Water in Flow Bijce Chapter IV--Hot Water Heating Systems and Piping the friction heads in the pipe and- in the elbows can be calculated by known formulae, or, they can be determined more readily from the diagrams of Figs. 7 and 8.

American Society of Heating and Ventilating Engineers Guide, 1928 Chapter XIII--Heating with Gas appliance enjoys uninterrupted and efficient service from it.

Index to Modern Equipment Vapor Knowles Mushroom Ventilator American District Steam Co.

American Society of Heating and Ventilating Engineers Guide, 1929 Chapter III--Steam Heating Systems and Piping matic air venting apparatus; instead of through individual air valves on the radiators in the rooms, (3) that the backing up of water in returns may be prevented by the carrying of exceedingly low-supply pressures, (4) that real fractional control is possible.

American Society of Heating and Ventilating Engineers Guide, 1929 If it is desired to determine the capacity of a pipe for any other length than 100 ft. or for any initial pressure other than 1 lb.

American Society of Heating and Ventilating Engineers Guide, 1929 EFFECT OF AIR VELOCITY ON SURFACE LOSSES The rate of heat loss from a surface maintained at constant temperature is greatly increased by air circulation over the surface.

T' Healing Systems PumPS Buffalo Pumps, Inc. 450 Broadway, Buffalo, N.

Heating Systems specialties Armstrong Machine Works 851 Maple Street, Three Rivers, Mich.