HomeMy WebLinkAbout1991 Furnace Calculation worksheet A -ij/LC1GE FURNACE SIZE CALCULATION WORKSHEET (03/13/91)
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CALJCULATIOUS PREPARED BY 2. 4 6E4„,„ t, `T PHOA'F 70 -19 z-,/
The basic information below, must be ascertained from the plans for the structure to be
.built. /0/,.5. ),. ..05 6
1. Sq. feet of exposed wall area above grade z.'9'6'9 ,; ] x ":" ie/6/
x 90 degrees,
a. Sq. feet of exposed window area x "U" ^ x ;!
90 decrees. �. /7 7
3. Sq. feet of exposed door area $�. x "tin , l' x ��
90 degrees.
.. `7 oZ` 9-4/9/
4. Sq. feet of ceiling area x "U" x 90.
5. Sq. feet of basement floor area , /4 /(2 x 2 BTU/sq. ft. . - :jzzp
6. Sq. feet of basement wall area below grade if 52" x 3354'
3 BTU/sq. ft.
T. Lin. ft. of infiltration for windows - x (.5)
x (1.085) x 90 degrees.
j 1. Lin. ft. of infiltration for doors " x (1.25) ?/75-
' x (1.085) x 90 degrees.
• 9. Lin. ft. of infiltration for sliding glass doors 3' x . uf(�
• (.75) x (1.085) x90 degrees.
10. Allarance for kitchen and bath fans:
4 ( kitchen fans @ 600 BTU es. ;6'°
I r! bath tans Q200BTU ea. _ � )
11. Allowance for fireplaces: I . -.__L @ 1,300 5TU ea. /,'o
12. Total BTU lass for all above items ........ /10/(- /
13. Add for combustion air (SSC 7722) (.001) x net loss above, ' '_ 2).t x (12.5) x (.075) x90 degrees.
14. AOline 12 and line 13. (.21,134. 1
15. ha hiaxicilin increase allowable by SBC 6007 is line 14 x 115%. / 3 8'.3 iiC
Output size of furnace 1 fal green line 14 and line 15.
Applicant Signature = Y" „,
U ,.
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