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Non-Pressurized Solar Water Heating System |
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The simplest systems are the non-pressurized or passive solar water heaters. They are most commonly used in Asia and Africa regions which do not experience extensive periods of below freezing temperatures. The water in these solar collectors circulates without the aid of pumps or controls.
When the sun shines on the collector panels, heat is absorbed by the water in the collector. As the water heats up, it starts to rise up the pipes, in the same way that hot air rises. When it gets to the top of the collector panel, it flows out of the panel and back into the storage tank. Colder water from the bottom of the tank then flows down to the bottom of the collector panels. Water continues to cycle through the system, and on sunny days can easily exceed the temperature required for home hot water. |
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Available in stainless steel and galvanized steel models
Tubes length available for 1500mm and 1800mm as standard |
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Galvanized Steel Models: |
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Stainless Steel Models: |
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 Easy to install – no electricity required – no more bills
Internationally certified solar thermal system - Solar Mark and
TUV-approved models
Reliable and efficient with adjustable frame height suitable for
all roof angles
Factory tested to work in varied angles from 25 to 65 degrees
Double wall high quality evacuated tubes – 25mm hail impact rated
No pump - no mechanical movement – five-year limited warranty
Works on natural convection currents of hot water
Double walled insulated SUS-304-2b food grade water tank
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Optional water fill float valve for automatic operation
Optional digital temperature readout |
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| Model |
Number
of
Tubes |
Dimension (mm) |
Tank Capacity
(litres) |
| Tube Diameter |
Tube Length |
Tube
Length |
Width |
Overall
Weight
(kg)
(empty tank) |
| EPL-12-1500 |
12 |
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701 |
40.80 |
80 |
| EPL-15-1500 |
15 |
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863 |
48.00 |
100 |
| EPL-18-1500 |
18 |
420 |
1500 |
47 |
1025 |
55.20 |
120 |
| EPL-20-1500 |
20 |
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1133 |
61.00 |
130 |
| EPL-24-1500 |
24 |
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1349 |
71.60 |
150 |
| EPL-30-1500 |
30 |
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1673 |
85.00 |
200 |
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| EPL-12-1800 |
12 |
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844 |
59.00 |
120 |
| EPL-15-1800 |
15 |
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1042 |
69.50 |
150 |
| EPL-18-1800 |
18 |
470 |
1800 |
58 |
1240 |
82.00 |
180 |
| EPL-20-1800 |
20 |
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1372 |
90.00 |
200 |
| EPL-24-1800 |
24 |
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1636 |
110.50 |
240 |
| EPL-30-1800 |
30 |
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2032 |
137.00 |
300 |
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100 litres 1-2 persons
200 litres 3-4 persons
300 litres 5-6 persons |
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System Controller with clear
LCD display of time, relays, errors
and temperatures |
Back-up Electric Heater to
provide constant hot water during cloudy and low sunlight period 1000W~1500W available |
System Assistant Tank
to provide automatic operation |
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