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Solar Hot Water Heating | Streamline Split Systems

Supplier: Toowoomba Solar Centre

Solahart's Streamline split system solar water heaters available from Toowoomba Solar Centre are designed to give you the maximum flexibility of installation locations.


The low profile and unobtrusive Solahart solar collector panels are mounted on a North facing roof, whilst the storage tank is mounted at ground level out of sight. The electric boosted model can even be installed inside your home. This minimises the visual impact of going solar, while maximising the potential savings from the sun.

How the Streamline works:

  • With Streamline open circuit systems the water is circulated from the tank at ground level through the collector panels by an electric pump called a 'circulator'.
  • Cooler water is pumped in a continuous cycle from the bottom of the tank and circulated through the collector panels where it absorbs the heat extracted from the sun before being returned to the tank.
  • In Streamline closed circuit systems, which are recommended for frost prone and poor water quality situations, Hartgard antifreeze fluid is used to circulate through the collectors. The heat collected from the panels is transferred from the fluid to the water in the tank by a heat exchanger.
  • The circulator is regulated by a control unit on the water heater. When the controller senses an 8°C differential in temperature between the top of the collector panels and the bottom of the tank, the circulator is activated until the temperature differential falls to 4 degrees centigrade. This ensures the optimum use of the sun's free energy.
  • With a Solahart Streamline solar hot water system you can choose from a range of boosters including in-tank electric or gas boosters or in-line gas continuous flow boosting to ensure you always have hot water on tap even on cloudy days.