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t i <br /> `13 s old Av,v-1 1�c2,? C <br /> HEATING COtrTRACTOR /iy!�Z I AA),-C�, clil/t��✓ PfiOt+'E_ <br /> GENERAL C011TRACTOR OR 01,111ER L4.7naa� All rir s PHOt1E y�i�— x'35 7 <br /> CALCULATIONS PREPARED BY�?i„4�7)yd : 101it144-1 P11OtdE <br /> The basic information below, rrust be ascertained from the plans for the structure to be <br /> built. <br /> 1. Sq. feSlt of exposed wall area above grade x "U" S <br /> 10 x 90 degrees. � <br /> 2. Sq. feet of exposed window area C) x "U" t 3 x ) / <br /> 90 degrees. ` I ( b- <br /> 3. Sq. feet of e;;posed door area x "U" zx I <br /> 90 degrees. � ! <br /> q. Sq. feet of ceiling area _22-0-7 x "U" , 03 x 90. _ �]� l C <br /> 5. Sq. feet of basement floor area <br /> x 2. BTU/sq. ft. y <br /> 6. Sq. feet of basement wall area below grade /& x <br /> 3 BTU/sq. ft. <br /> 7. Lin. ft. of infiltration for windows x (.5) �� <br /> x ( 1.085) x 90 degrees. c� <br /> 8. Lin. ft. of infiltration for doors () x (1.25) <br /> x ( 1 .085) x 90 degrees. <br /> -7' <br /> ,9. Lin. ft. of infiltration for sliding glass doors x / <br /> ( .75) x ( 1 .085) x 90 degrees. , 7 <br /> 10. Allowance for kitchen and bath fans: ] _ <br /> l� kitchen fans @ 600 BTU ea. <br /> U 4 bath fans 9 200 BTU ea. <br /> 11. Allowance for fireplaces: 0 yam_ Q 1,300 BTU ea. ��� <br /> 12. Total BTU loss for all above items ,] <br /> 13. Add for combustion air (SBC 7722) (.001) x net loss above, <br /> x ( 12.5) x ( .075) x 90 degrees. ( �/ <br /> 111. Add line 12 and line 13. C)LI <br /> �� I <br /> 15. 11aximum increase allocable by SBC 6007 is line 111 x 115 . <br /> Output size of furnace shall fall between line 111 and line 15. <br /> Applicant Signature <br />