As their name suggests, roof mount solar hot water systems – also referred to as ‘close-coupled’ systems – are composed of a water tank attached to solar collectors sitting on the roof. The process used in roof-mounted systems is called thermosiphon: the water from the tank is released into the panels, where it flows and heats before it goes back up into the tank. Solargain flat panel collectors were made to be efficient and durable in Australian climates. Their high-quality copper design allows maximum sun heat transfer and their anodized alloy frame protects them from harsh weather conditions. Solargain’s single- and twin-panel roof mount solar hot water systems feature an automatic electric or gas backup to guarantee hot water availability at all times.

Solargain Roof Mount 300L Single Panel with Electric Boost

300L Roof Mount Single Panel

Improve the energy rating of your home and SAVE! Use the sun’s unlimited FREE energy to provide up to 80% of your hot water heating needs. Solargain’s roof mount solar hot water heaters are traditional close-coupled thermosiphon systems, combining roof mounted solar collectors and storage tanks, which are ideal for applications that are short of available ground space. Roof mount systems are highly efficient and use natural thermal convection to circulate hot water from the collectors to the tank without the need for electric pumps.

Solargain Roof Mount 300L Single Panel with Gas Booster

300L Roof Mount Single Panel with Gas Booster

Solargain roof mount single panel systems utilise the thermosiphon method, a very simple and non-mechanical way of harnessing the sun’s energy for water heating. The storage tank contains cooler, denser water at the bottom and warmer water at the top. The cold water flows down through the highly-performing copper panels, where it is heated by the sun, before flowing back up into the cylinder. This goes on as long as the sun is up and stops when it sets.

Solargain Roof Mount 300L Twin Panel with Inline Gas Booster

300L Roof Mount Twin Panel with Gas Booster

Fully automatic 6-star in-line gas booster provides plenty of hot water all year round. The Solargain double panel roof mount with in-line gas booster is the workhorse of solar hot water systems. The cooler water at the bottom of the cylinder is denser than the warmer water at the top. As the cooler water flows through the panels, the sun’s energy heats the water via the highly efficient all-copper collectors, and rises up into the storage tank. This cycle will continue while the sun is shining and will cease once the sun goes down.