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Green Energy




Commercial hot water requires experience and technical expertise. GEWA is guaranteed to be able to tailor a solution for small, medium and large commercial applications.

Offering over 20 years’ experience GEWA deal in sales and service for all of the leading brands from Rinnai, Solahart, Rheem and more. GEWA promotes those who have invested in the Australian market place and are here to stay. Whether you are looking to reduce your energy bills or help the environment there are many different models of solar hot water systems that are available each offering unique benefits. With so many options on the market place our experienced staff will be able to explain the differences between manifolded gas instantaneous units or storage units, all with optional solar preheat. Unsure about stainless steel and vitreous enamel lined tanks, flat plate collectors and gas evacuated tubes? Not a problem, we will endeavour to help you select the product that is right for you.

Whether it be a hotel, shower block, factory or even café, GEWA will provide you with an efficient solution.

Why Green Energy

With years of experience and hundreds of installations across Western Australia, GEWA offers you piece of mind when it comes to selecting the right brand and product for your home.

Tank Type

GEWA offer both stainless steel and vitreous enamel lined tanks, in closed coupled or split system format. Whilst in most cases both tanks can be used in residential applications it is important for our staff to assess which is suitable for you.

Collector Type

Flat plate collectors or gas evacuated tubes is a common question. Are the tried and tested flat plate collectors as efficient as the highly marketed gas evacuated tubes and what is most suitable for our climate? With the ability to supply both we will provide you with a non-biased approach to selecting the most efficient type for your budget.

Booster Options

The back up to the solar hot water system can be either electric or gas, not all options are viable, whether you have the infrastructure in place or are specifically looking to make use your solar power system, we can advise you of the benefits and most appropriate ways to use either back up for those months when the solar radiation is reduced.


Looking for more information or a little more help? Visit the contact us page for advice and a free quotation today.