The Pros And Cons Of Gas Boosted Solar Hot Water Systems

As solar hot water has been an attractive alternative to traditional gas and electric water heaters for decades, you’d think it couldn’t get any better. Well, it can!

By boosting your solar hot water system with a continuous flow gas hot water system (gas booster), hot water will always be readily available, come rain, shine, or night time, as it acts as a supplemental water heater booster to ensure you get the most out of your solar hot water system.

However, before looking into replacing your existing gas or electric water heater, or upgrading your current solar hot water system, do yourself a favour and get to know the benefits of gas boosters. You won’t regret it!

To help you make your decision, we’ve compiled the most notable pros and cons of gas boosted solar hot water systems.

The Pros of Gas Boosted Solar Hot Water System

Significant savings of solar

As solar hot water systems use the sun’s natural rays as a source of free energy, installing one could significantly slash your monthly energy bills. In fact, modern solar hot water systems can pay for themselves within six to ten years! Even less in some cases.

Better together, whatever the weather

Whether you’ve used up your sun-heated water or there was no sun to begin with, with a gas booster you’ll always have hot water on tap. Once your gas booster detects a drop in water temperature, it’ll automatically ignite to provide instantaneous and continuous flow heating.

Therefore, no more remembering to turn on the electric booster and waiting hours for a “cold” solar water heater to heat up enough water for a hot shower, or number of hot showers. A continuous flow gas booster can be turned on at the “flick of a switch” at any time and hot water is immediately available.

Environmentally friendly

Going solar helps you protect our planet, as it can offer 70-80% of your hot water needs from free renewable, clean energy. On the other hand, conventional hot water systems have to generate all their heat by combusting fossil fuels (gas or electric). This produces harmful greenhouse emissions, pollutes the air, and contributes to climate change!

The best part?

Gas boosters are easily retrofitted to existing solar storage hot water tanks to increase their effectiveness and convenience. And in the long run, your gas boosted solar hot water system will also pay for itself.

The Cons of Gas Boosted Solar Hot Water System

Initial Upfront Installation Costs

The costs involved in adding a gas booster or installing a complete gas boosted solar hot water system can make most homeowners think twice about outlaying the cost of getting the system installed.

Efficiency Rating

Nowadays the STC energy rating of most gas boosted solar water heaters is the same as for electric boosted solars, and even less for some brands. Therefore, they are tested and deemed by the Clean Energy Regulator (CER) to be no cheaper to run than an electric boosted solar water heater. Why? Because solar gas boosters have to be set to heat the water coming from a solar HW tank to 70C and use considerably more gas, than when used as a dedicated and separate stand-alone continuous flow gas HWS, which can be set as low as 42C (the temperature at which most adults shower).

Fossil Fuel Combustion

Unfortunately, a gas booster involves fossil fuel combustion and may not be the best choice for die-hard environmentalists. But, all is not lost! Natural gas is one of the cleanest fossil fuels available, producing 50-60% less greenhouse gas emissions than the rest.

Decision Time

Now that you’ve seen the evidence, you can make an informed decision for yourself!

Whether you choose an electric, gas, heat pump, electrically boosted solar, or gas boosted solar hot water system, our team at Kalamunda Plumbing has the expertise you need. We offer all manner of hot water system services, while specialising in the sale, service, and installation of solar hot water systems for over 30 years!

Visit our website for more information or call us on (08) 9291 6000 – we’re happy to help.


Seen our showroom yet? Visit us at Shop 5B Kalamunda Glades, 121-123 Canning Road Kalamunda 6076

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Excellent4.9 Based on 331 reviews from review us onAnthony Denholm ★★★★★ Great team, amazing customer service. Extremely professional with honest advice on options.Catherine Barker ★★★★★ The guys were so great they we very honest and even helped out tighten a railing just because….. 100% would recommend, price was very reasonable tooKim Pascoe ★★★★★ Quick service and repairGreat as usualAndy Perry ★★★★★ Efficient and friendly service at a reasonable cost.Ben Della Franca ★★★★★ Have been getting Kalamunda plumbing for a number of years and they do a great job, whether big or small they always get it done. Prices are reasonable and the job is always quality. Won't look anywhere else.Kris Berry ★★★★★ Great, prompt, professional serviceP D ★★★★★ Efficient, friendly service. Highly recommend these guys.Jo Morris ★★★★★ I always have a great experience with Kalamunda Plumbing - the service is wonderful, friendly and very reliable. Wouldn't use anybody else!Phil Shepley ★★★★★ Fantastic Service, really great team to deal with, no drama!Peregrin Campbell-Osgood ★★★★★ Very professional and respectful. Came when they said they would; returned with the needed parts when they said they would. Upfront, clear costing and good advice. And great to see listed as LGBTQ+ friendly! ThanksJanice Gunton ★★★★★ A big thanks to Anthony for removing a decommissioned oil heater fuel tank from side of house. Also extended extra help to me to remove a side gate which was proving too difficult for me to remove myself.Response from the ownerHi Janice, we're glad that we were able to help you once again! I'll pass on your kind words to Barry and Ethyn. Sarah Feeney ★★★★★ Team, we’re friendly and helpfulTina Delahunt ★★★★★ I have used Kalamunda Plumbing many times for various problems, over many years, changing of taps, blocked drains, a leak from a water pipe., installing appliances. They are prompt, friendly and always have fixed the problem and upfront with what the costs will be. I highly recommend them.Response from the ownerHi Tina, thanks for your feedback! We appreciate your continual support of Kalamunda Plumbing, and look forward to assisting you in the future. Gary Adam ★★★★★ Great service and on timeGood communication from this companyResponse from the ownerThankyou Gary for the positive review. mike reid ★★★★★ It was a long day and the guys did a great job installing the solar panels and battery.5 Stars, thanks.Response from the ownerThankyou Mike for the great review. I shall let the team know they did a great job. We look forward to working for you again in the future. Chris Williams ★★★★★ Professional and reliable,Anthony was here at 7am as booked and explained everything to me,would definitely recommend !Response from the ownerThank you for the great review Chris. Glad we could get it sorted for you. T White ★★★★★ Professional and rapidResponse from the ownerThankyou for the positive feedback. Kay and Gordon Aram ★★★★★ Two new toilets installed and all our taps serviced over the past week. We're very, very happy with the work and the results, especially as we have very old, irreplaceable tiles and not one was damaged. Top marks and thanks to Tim and his offsider.Response from the ownerThankyou for the positive review. Glad we could help. Meri Robinson ★★★★★ I would highly recommend Kalamunda Plumbing they always do an excellent job,. The team have always been courteous, on time and ensure the area is kept clean once completed. We have used their services for many years and they have always given outstanding workmanship and a big thank you the girls who organises and communicates with each booking . Well done and thank to you all, we are very pleased, much appreciated.Response from the ownerHi Meri, Thankyou for you kind words. Our team are always ready to help you when you need us. Robin Preston ★★★★★ Great service. Attention to detail is second to none. I would recommend them to anyone.Response from the ownerThankyou Robin for the positive feedback. We are glad that we could solve the issues for you. V Wood ★★★★★ Thank you very much for prompt response and installation of the hot water system. Boys were amazing and professional. Right from the start of the quotation and options to the job carried out and completed on the same day. We are so happy and will be using your company in the future. Thank you again and job well done 👏Response from the ownerThankyou so much for the lovely review. We pride ourselves on giving the best customer service experience possible. We hope you enjoy your new hot water. Suzanne Walson ★★★★★ We have used Kalamunda Plumbing Plus three times in the past two months since purchasing a new home. Every single time they have been prompt, friendly and done a great job. We will happily use them again and would recommend to anyone needing their services.Response from the ownerThankyou so much for the amazing review Suzanne! We look forward to working for you in the future with any of your plumbing needs. Nett 190 ★★★★★ Prompt service & arrived on time. Reception staff friendly & helpful. Local business.Response from the ownerThankyou for the positive review. It's nice to hear hat about our staff. js_loader

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Kalamunda Plumbing is a team of professional local plumbers, servicing Perth's Hills and Eastern Suburbs with a proud tradition of Service Excellence since 1954. Get in touch to discuss your hot water, plumbing, drainage and evaporative cooler needs, or visit our Showroom at Kalamunda Glades Shopping Centre to speak to our friendly team today!