Low Pressure Geysers
Stainless Steel - Low Pressure 200L Solar Geyser including Auxiliary Tank (2-Year Guarantee)
We've obtained a sales permit from the NRCS and the geysers are ready for sale.
Installing a close coupled low-pressure geyser is one of the most cost-effective water heating solutions available.
Low-pressure refers to the operating pressure of the geyser. The geyser tank can not operate at high pressures because the tank wall is only 0.35mm thick compared to a standard 1.2mm thick high-pressure geyser tank. The ends of the low-pressure geyser are not welded but folded to be watertight; hence the cost-effectiveness of the solar geyser.
An auxiliary tank or feeder tank is required and recommended to regulate the incoming pressure to the low-pressure geyser. The outlet of the geyser is gravity fed to the taps. A low-pressure anti-scald valve should be installed on the outlet of the geyser to ensure that the outlet temperature is not too hot for the user.
| Model | 100L | 150L | 200L |
| Volume | 100L | 150L | 200L |
| Qty. of tubes | 10 |
15 |
20 |
| Tube | 58x1800x2 mm | 58x1800x2 mm | 58x1800x2 mm |
| Exterior Tank Material |
0.35mm Stainless Steel |
0.35mm Stainless Steel Sheet |
0.35mm Stainless Steel Sheet |
| Interior Tank Material | 0.35mm SUS304 Stainless Steel | 0.35mm SUS304 Stainless Steel | 0.35mm SUS304 Stainless Steel |
| Outer Tank Diameter | 470mm | 470mm | 470mm |
| Insulation | 55mm Polyurethane Foam | 55mm Polyurethane Foam | 55mm Polyurethane Foam |
Before you buy
- Low-pressure geyser buying guide – sizing, auxiliary tanks and how the system works.
- Technical support – low-pressure installation manual and SR609 controller manual.
Frequently asked questions
Does a solar geyser work during load shedding?
Yes. The vacuum tubes heat the water with sunlight, so it doesn't need electricity on sunny days. A low-wattage backup element covers cloudy spells.
What size solar geyser do I need?
Allow about 50 litres of hot water per person per day. That works out to 100L for one or two people, 150L for three, and 200L for four or five.
Can I convert my existing electric geyser to solar?
Yes. A retrofit manifold kit fits on your existing geyser without replacing the tank. Our kits come in sizes from 10 to 24 tubes.
Low pressure or high pressure?
Low-pressure geysers are gravity-fed, simple and affordable, and suit farms, holiday homes and low-pressure plumbing. High-pressure systems give mains-pressure showers. A retrofit kit is the most cost-effective way to get solar on a high-pressure geyser.
Solar geyser or heat pump?
If your roof gets good sun, a solar geyser has the lowest running cost and works during load shedding. If your roof is shaded, a heat pump is better, but it still needs electricity.
