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Sample Solar Water Heating Installation Drawings:

A. Evacuated Tube Solar Domestic Hot Water pre heat installation, gas backup

B. ‘Hot Tube’ coil screwed into immersion heater flange

This system of solar water heating is relatively cheap & easy to install. Ideally requires immersion heater flange to be located in the lower part of the cylinder. Unfortunately, most modern hot water cylinders have top-mounted immersion heaters, which will not allow high efficiency when used to facilitate solar heating

Key Components

1. Solar Sunlite manifold with Vacuum Water Tubes
2. Pressure Gauge
3. Automatic Air Bleed
4. Drain Cock
5. Expansion Tank
6. Gate Valve
7. Single Check Valve
8. Double Check Valve
9. Filling Loop
10. Circulating Pump
11. Pressure Relief Valve
12-15 Overflow

C. Direct heating Single Coil (simplest method)

This is the simplest method of solar water heater installations. Quite efficient, but in areas of hard water, eventually, the solar collector will get ‘furred up’ with lime scale, which will reduce efficiency. Easy to retrofit to an existing direct or indirect hot water cylinder.

Key Components

1. Solar Sunlite manifold with Vacuum Water Tubes
2. Pressure Gauge
3. Automatic Air Bleed
4. Drain Cock
5. Expansion Tank
6. Gate Valve
7. Single Check Valve
8. Double Check Valve
9. Filling Loop
10. Circulating Pump
11. Pressure Relief Valve
12-15 Overflow

D. Twin coil solar hot water tank

This is the best method, but requires the added cost of a twin coil water cylinder. We can supply these at attractive prices, with the added advantage of a double layer of insulation (50mm), keeping heat losses to a minimum. Please contact for details

Key Components

1. Solar Sunlite manifold with Vacuum Water Tubes
2. Pressure Gauge
3. Automatic Air Bleed
4. Drain Cock
5. Expansion Tank
6. Gate Valve
7. Single Check Valve
8. Double Check Valve
9. Filling Loop
10. Circulating Pump
11. Pressure Relief Valve
12-15 Overflow