Document N2wxRrx5v4V24axKZmGLMqopw

American Society of Heating and Ventilating Engineers Guide, 1930 circulating systems, this stack to leader area ratio is a very important consideration. Specific data for a great variety of cases are presented ( oza Chapter 5--Heating with Warm Air Furnaces by Gravity B.t.u or above (see Figs. 4 and 5 which show that high temperatures are necessary if rooms of more than 9,000 B.t.u. requirement are heated D O 5 ' wCtf o ' id C*. wi* tii W` o 2 .cH Id X 6 u* . in Figs. 4 and 5 and the designer should check the stack to leader com binations with the nearest comparable case as shown in these figures. Any second floor stack supplying heat to a room whose heat loss is 9,000 132 by stacks in 4-in. studding), should be run within 6-in. studded walls or should have multiple stacks. Stack sections, wherever possible, should be changed from the thin rectangular to the more nearly square shape. 133