South Africa's leading Eco Store - Need Assistance? 0861 661 326 or Click Here

300L Evacuated Tube Thermosiphon Solar Water Heating Kit

Thermosiphoning is a method of passive heat exchange, based on natural convection, which circulates a fluid without the necessity of a mechanical pump. Thermosiphoning is used for circulation of liquids and volatile gases in heating and cooling applications such as heat pumps, water heaters, boilers and furnaces.

How Thermosyphon Systems Work
Typical thermosyphon heaters do not have pumps or controls; they are based on the natural convection principle: hot water rises, cold water sinks. As the potable water (or the antifreeze fluid, in colder climates) enters the solar panel, it warms and rises to the top of the tank, where it is stored (that’s the reason why thermosyphon cylinders are located above the collector).

Sign up for price alert
Excl. Tax: R 28,710.42 Incl. Tax: R 33,016.98

Price as configured: Excl. Tax: R 0.00 Incl. Tax: R 0.00

1 x KwikSol 300L 400kPa Direct Solar Geyser   +R 14,201.74 (+R 16,332.00 Incl. Tax)
2 x ITS 15 Evacuated Tube Solar Collector   +R 12,182.60 (+R 14,009.99 Incl. Tax)
1 x Valve Pack 2   +R 1,792.17 (+R 2,061.00 Incl. Tax)
1 x ITS 180° C High Temperature Automatic Air Release Valve   +R 222.61 (+R 256.00 Incl. Tax)
2 x 22mm Full Bore Lever Ball Valve   +R 311.30 (+R 358.00 Incl. Tax)

* Required Fields

Price as configured: Excl. Tax: R 0.00 Incl. Tax: R 0.00

Product Description



  • Thermosiphon systems can be equipped with either tube solar panels or flat solar panels.
  • Thermosiphon systems are cheap, reliable and since they do not have pumps or controls they do not require any significant maintenance.
  • Contrary to batch systems - and since hot water is stored in an insulated tank - they can minimize heat loss during the night-time hours.
  • Suitable for north orientation, pitched roof mounting.
  • Geyser can be installed inside the roof as it is a pumped system.
  • Evacuated tubes have a marginally higher efficiency than their flat plate counterparts during winter.
  • Direct geysers are suitable for areas with little to no frost.
  • 300L Systems are suitable for households of 6 people or less.

This kit includes the following

  • 1 x KwikSol 300L Direct Solar Geyser.
  • 1 x 30 Evacuated Tube Collector.
  • 1 x Valve Pack 2.
  • 1 x 180°C High Temperature Automatic Air Release Valve.
  • 2 x 22mm Ball Valves.

Additional Information

Additional Information

Geyser Litres 300 Litres
Collector / Panel Type Evacuated Tube Collectors
Disclaimer Please note that stock availability is subject to prior sales. Prices exclude delivery. The image serves as an example of what the product looks like and may differ slightly in appearance.
Guarantee/ Warranty 12 month product warranty


Write Your Own Review

You're reviewing: 300L Evacuated Tube Thermosiphon Solar Water Heating Kit

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars

  • here

Product Tags

Product Tags

Other people marked this product with these tags:

Use spaces to separate tags. Use single quotes (') for phrases.