Hoffman Specialty Co.

Hoffman Specialty Co.

"'I [ MEB1CM SOOETYOF AMONG & AMERICAN SOQETIOF HEATING & YENTIIATIN6 ENGINEERS 6HDE19S TABLE 12.

'AMERICAN SOOETY(ff BEffllNfi & TA B LE 70.

issxstos Tirrnj ijstxtotj 12 South 12th Street, Philadelphia 7. ?

SGP 0019731 C a r e y -C a n a o ia n M in e s .

,Specialties Heating TRANE HEATING SPECIALTIES (See Trane Heat Cabinets on pages 394 and 395.

Jc **&9* J2&* /t7/7f*

.wagiryi I department on location . r'rm -K-`' REQUESTED BY REQUISITION NUf Bt* VENDOR NUMBER 60*1 BM PURCHASE ORDER ^GEORGIA-PACIFIC CORPORATION GYPSUM DIVISION BOO S.W.

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Metal Weatherstrips The Higgin Manufacturing Co.

American Society of Heating and Ventilating Engineers Guide mti PIPING CONNECTIONS Hartford Return Connections The Hartford return connection illustrated in Fig. 7 and in piping layouts in this chapter is recognized as safer and preferable^ the use of check valves.

American Society of Heating and Ventilating Engineers Guide, 193^ The draft loss in the chimney stack is so dependent on conditions surroundi stack itself, that it seems desirable to consider the loss in terms of percentage of** draft rather than in specific terms of velocity.