MIL-HDBK-1003/13A
WORKSHEET A
Job Summary
Date
Nov 1979
Job Number
Example 1
Building
Family Quarters
General Construction
Stucco
Location
Port Hueneme, California
Occupancy
Family of Four
Hours of Occupancy
Type of Solar System
Space and DHW
Building Area
1,467
sq ft
No. BR
3
No. Baths
2
Fuel Gas Burned in Heater @
70
% assumed @ Cost .30 /106Btu
efficiency
@
%
/106Btu
@
%
/106Btu
Solar Collector Description:
Single glazed glass, Copper absorber,
Selective coating
Approx. Cost, installed, total system
$
/sq ft DHW
(Worksheet F)
$ 40.10 /sq ft Space Heating/DHW
(1)
_
(x)
(y)
Area
f Solar Value of 25 year Savings/ Payback Period
(From (From System
Fuel Saved
Investment (NAVFAC Manual
E-1) E-1) Cost
(From E-1 -
Ratio
P-442)
(From F)
column (9)
(y)/(x)
Or E-2)
200 .646 8,020
12,094
1.51
- 18 years
300 .794 12,030
14,865
1.24
- 22 years
133
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