Solahart Water Heating Systems

SolarTherm - Alpha Thermal Systems
SolarTherm - Alpha Thermal Systems

We are the sole distributor for Solahart domestic and commercial hot water systems in Sri Lanka

Solahart Water Heating Systems​

With a Solahart solar water heater, you can enjoy significant savings on your energy use and reduce your greenhouse gas emissions.

Solahart solar hot water systems use a range of technologies to provide efficient and cost-effective solar water heating solutions Solahart roof-mounted tank systems save space at ground level and their elegant simplicity makes them efficient and reliable.

All Solahart solar hot water systems, where the tank is installed on the roof, use the ‘Thermosiphon’ principle to collect heat from the sun and transfer it to your water.

Solahart solar collectors are coated with a heat-absorbent surface. This coating absorbs the energy from the sun’s rays and heats the fluid in the collectors. As the fluid heats, it rises to the top of the collectors and into the tank where it displaces cooler fluid which flows into the bottom of the collectors where the process is repeated.

In this way, Solahart solar water heaters constantly soak up the sun’s energy to maximize your energy savings. With a Solahart Thermosiphon solar hot water heating system, you can choose from a range of boosters including in-tank electric or in-line gas boosters, to ensure you always have hot water on tap, even on cloudy days.

Solartherm is the sole distributor for Solahart domestic and commercial hot water systems in Sri Lanka

Solahart L Series

Our most popular system, designed to provide economical service in medium to high solar gain areas.
SolarTherm - Alpha Thermal Systems

Solahart 181L

The 181L Series is a 180lt roof mounted, open circuit solar water heater.

Solahart’s roof mounted tank systems save space at ground level and their elegant simplicity make them efficient and reliable. The Solahart 181L Series is a roof mounted, open circuit solar water heater specifically designed to provide economical service in medium to high solar gain areas. The smaller volume of the 181L makes it ideal for applications where low volumes of solar hot water are required, e.g. small units or retirees.

  • Family Size: 2
  • Capacity(L): 180
  • Collectors: 1
  • Warranty: 5 Years

SolarTherm - Alpha Thermal Systems

Solahart 302L

The 302L Series is a 300lt roof mounted, open circuit solar water heater.

Solahart’s roof mounted tank systems save space at ground level and their elegant simplicity make them efficient and reliable. The Solahart 302L Series is a roof mounted, open circuit solar water heater specifically designed to provide economical service in medium to high solar gain areas.

  • Family Size: 5
  • Capacity(L): 300
  • Collectors: 2
  • Warranty: 5 Years

Solahart J Series

Closed Circuit system designed to provide economical service in medium to high solar gain areas.
SolarTherm - Alpha Thermal Systems

Solahart 181J

The 181J Series is a 180lt roof-mounted closed-circuit system.

The 181J solar water heater is specifically designed to provide economical service in medium to high solar gain areas, and is suitable for frost prone or harsh water chemistry areas. The smaller volume of the 181J makes it ideal for applications where low volumes of solar hot water are required, e.g. small units or retirees.

  • Family Size: 2
  • Capacity(L): 180
  • Collectors: 1
  • Warranty: 5 Years

SolarTherm - Alpha Thermal Systems

Solahart 302J

The 302J Series is a 300lt roof-mounted, closed-circuit system. Solahart Sunheat Entry level.

Solahart’s roof mounted tank systems save space at ground level and their elegant simplicity make them efficient and reliable. The Solahart 302J solar water heater is specifically designed to provide economical service in medium to high solar gain areas, and is suitable for frost prone or harsh water chemistry areas.

  • Family Size: 5
  • Capacity(L): 300
  • Collectors: 2
  • Warranty: 5 Years

Solahart Sunheat

Entry level model for high solar gain areas.

Solahart Sunheat Series is an Australian designed solar water heater specifically developed to provide hot water free from the sun in medium to high solar gain areas. The black polyester powder-coated aluminium absorber collects the sun’s heat and transfers it to the water in the copper risers. The increase in temperature causes the water to rise and move into the storage tank where it displaces cooler water. This cooler water then travels back into the solar collectors to be heated by the sun.

  • Family Size: 3
  • Collectors: 1
  • Warranty: 5/1 Years

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