5. Material Costs in Guatemala
Each installation for 3-4 people takes 3 panels and 1 tank. Total cost: 3359 Q ($420.) This
included pipes and installation accessories, but not installation labour or overhead.
Materials: 1 Serpentine Solar Collector
Item Quantity
Galv. channel, 25mm x 63mm x 25mm 4.3m (2 10‟
Individual cost
26.60Q per 10ft
lengths required) length
Rubber gasket, width?
½” Gal pipe
4.3m
6m
120Q/ 6m
Rivets, 5/32" x 1/4
50
Termoflex insulation
Gal iron plate, cal 28: absorber
3m
(3‟ x 4‟)
25Q
(70Q - entire 3‟ x 8‟
Gal iron plate, cal 26: backing plate
(3‟ x 4‟)
sheet)
(104Q - entire 3‟ x 8‟
Transparent glass pane 5mm x 36” x
48”
1
sheet)
110Q
Anti-corrosive black paint
1/10 gallon
15.2Q
Gal flat iron
0.5m
15Q/ m
Angle iron, 2.04m
2m 15Q/m
Gal wire for absorber assembly
Labour fro manufacture, 6 hours
6hours
18.75/ hourQ
Total 664.15Q ($83)
Total cost
53.2Q
30Q?
120Q
3.25Q
75
35Q
52Q
110Q
15.2Q
8Q
30Q
20Q?
112.5Q
Materials: Hot Water Tank
Item
18” x 32” blue plastic barrel + lid
Float Valve: ½”
Quantity
1
1
Individual cost
150Q
52Q
Float Valve: Chain
1?
Float Valve: 8mm screw (replace
1
10Q
attachment arm)
Sacrificial anode
1?
55 gallon drum + lid
1 160Q
Termoflex insulation, 6.2m
2
25Q/m
Shut off Valve, 3/4"
Nipple, ½” HG x 2” long
Nipple, ½” – 4" long
1
5
4
41Q
5.25Q
6Q
Coupler, ½ " HG
7 3Q
Washer, 1/2", HG
7 3Q
enough for 8
?
Rubber to make rubber washers
washers
Female adaptors: 1/2” CPVC ½” HG 9
10Q
enough for 4
?
Rubber for outer tank seals
seals
Anti-corrosive black paint
1/10 gallon
15.2Q
Labour for manufacture, 8 hours
8 hours
18.75Q / hour
Total 966.45Q ($120.80)
Total cost
150Q
52Q
20?
10Q
30?Q
160Q
150?Q
41Q
26.25Q
24Q
2Q
21Q
20?Q
90Q
5?Q
15Q
150Q
400Q is estimated for pipes and accessories needed for installation (assumed to be CPVC.)
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