Cyclopedia of heating, plumbing and sanitation; a complete reference work . Cast-iron Border for a Floor Register. 9? ss HEATING AND VENTILATK >\* register faces. The grill or solid part of a register face usually takesupaboul ^of the area; hence in computing the size, we musl allowfor this by multiplying the required nei area by , to obtain thetotal or over-all ana. imple. Suppose we have a Hue in inches in width and wish to use aregister having a free area of 200 square inches. What will be the required it of t he registi 2o(i I ..) ;;oo v|ii;iiv inches, which is the total ana required
Cyclopedia of heating, plumbing and sanitation; a complete reference work . Cast-iron Border for a Floor Register. 9? ss HEATING AND VENTILATK >\* register faces. The grill or solid part of a register face usually takesupaboul ^of the area; hence in computing the size, we musl allowfor this by multiplying the required nei area by , to obtain thetotal or over-all ana. imple. Suppose we have a Hue in inches in width and wish to use aregister having a free area of 200 square inches. What will be the required it of t he registi 2o(i I ..) ;;oo v|ii;iiv inches, which is the total ana required;then 300 -s- 10 = 30, which is the required height, and we should usea in by 30-inch register. When a register is spoken of as a 10 by. IVENTILATORj FOR CORDS ! S
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