American Society of Heating and Ventilating Engineers Guide, 1925-26 MEASUREMENT OF AIR FLOW The quantity, velocity and pressure of air discharged by a fan or flowing through a pipe may be determined by various methods.

American Society of Heating and Ventilating Engineers Guide, 1926-27 particularly bituminous or soft coal, from 1 to 2 hour firing periods are generally considered.

American Society of Heating and Ventilating Engineers Guide, 1928 temperatures and quick heating-up; to control and direct the heated air for the positive and economical placing of the heat where it is effective; to distribute heat over wide areas, to reduce the number of units and simplify piping and installation; to increase the capacity of the heating surface by passing the air over it at high velocity to economize material; to provide a system by which room temperatures are easily controlled manually or by thermostats at slight cost.

American Society of Heating and Ventilating Engineers Guide, 1928 There are many other combinations for giving assured protection with oil burners other than thermostatic devices, such as pressure and weight-actuated mechanisms, but. it is doubtful whether they are as reliable as the thermostatically controlled schemes.

American Society of Heating and Ventilating Engineers Guide, 1928 STOCK, Edward L., (Associate 1918), Sales Mgr., (for mail), Niagara Radiator & Boiler Co., 11-17 Investment Bldg., Washington,' D.

American Society of Heating and Ventilating Engineers Guide, 1928 Independence-- Sellars.

American Society of Heating and Ventilating Engineers Guide, 1929 from one to another, and with a temperature difference of 70 deg., the pressure causing infiltration near the ground, and exfiltration near the roof, may easily exceed 0.20 in. of water, which is the equivalent of a twenty-mile wind.

American Society of Heating and Ventilating Engineers Guide, 1929 cause high velocities and in the case of counter flowing condensate cause water hammer, (3) that there is a constant initial pressure. 11 is recommended that all systems be designed for low initial pressure and a reasonably small pressure drop.

American Society of Heating and Ventilating Engineers Guide, 1929 STATIONARY GRATES Stationary grates are installed on bearing bars, and not movable except as they are lifted out of the furnace for repair or replacement.

.American Society of Heating and Ventilating Engineers Guide, 1929 A )4 in. return-connection and 34 in- thermostatic trap is ample for any coil or heating unit except ironers and tumblers which should be 34 in. return with 34 in. thermostatic trap.

American Society of Heating and Ventilating Engineers Guide, 1929 Fig. 2.

' ,.A a ,r .:^..j-~mmim*m American Societv 0/ Heating and Ventilating Engineers Guide iggj grades of brass.

Fans and Ventilating Equipment De Bothezat Impeller Co., Inc.

Air Conditioning Systems (Oil Fired) Scott-Newcomb, Inc. 1922 Pine Street, St.

Burners, Oil Automatic Burner Corp. 1823 Carroll Avenue Chicago, Illinois Domestic Oil Burners -- Range Burners Water Heaters -- Special Products ABC Oil Burners are built in five models in the rotary atomizing type and four sizes of pressure atomizing burners.