Even though 90 of all solar hot water systems use anti freeze between the collectors and the solar heat exchanger see schematic the supply and return lines should still be below the frost line.
Ground mounted solar hot water systems.
Rheem s split design solar hot water heater systems offer the energy saving benefits of solar without the worry of a large tank on your roof.
Ground mounted systems employ inbuilt pumps to push the fluid through the system.
Ground mounted solar water heaters work by absorbing energy from the sun s rays in roof mounted solar collectors and transferring it to the water stored in the ground mounted storage tank.
Their flat panel collectors are composed of superior quality copper which ensures an optimal solar energy transfer and anodized alloy which makes them more tolerant to the harsh australian weather conditions.
Unlike roof mounted heaters they need to use a pump to send the water from the rooftop collectors to the tank thus making future maintenance much simpler for many years.
Freezing is not the issue but ground movement may be.
Long runs are particularly susceptible to seasonal heaving of the soil.
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.
Solargain ground mounted solar hot water systems are highly performing long lasting and climate proof.