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 289 reviews from review us onMichael Harding ★★★★★ Wonderfully professional service in every way, with full information, punctuality, friendliness and care. I could not recommend this company too highly.Paul White. ★★★★★ Very impressed with their work.Friendly and good to get along with.Arrived on time, did a great job and left it neat and tidy.Highly recommended.Janice Gunton ★★★★★ Another successful job completed by Tim and David. Kalamunda Plumbing provide excellent service and I certainly recommend them to anyone looking to support local businesses. Thanks again Tim and David.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. Greg Weare ★★★★★ I can't fault Kalamunda Plumbing Plus..they're punctual, professional, polite and friendly. The work was completed in good time and the quality of their workmanship is excellent (thanks Jake)...and all for an amazing price. If I could give them more than 5 stars I would !! I would use them again without hesitation and highly recommend them. Thank you all from a very happy customer.Duncan Blandford ★★★★★ Always a good experience dealing with the Kalamunda plumbing teams. Whoever comes out, they are always professional, friendly, and good at their job. Great companySusan Edwards ★★★★★ Excellent service. Diligent arrival times from Cameron and replacement free of charge.Thank you.Linda Wade ★★★★★ Can thoroughly recommend Kalamunda Plumbing.Called Tuesday and Cam was out Wednesday to check solar hot water system. Provided a quote for replacement straight away. New hot water system installed Thursday.Fast and quick service. No fuss no stress.Jeremy Holton ★★★★★ The truck was held up due to other jobs which had turned out to be more complicated, so it was late afternoon before they arrived and I was worried they might not finish the job.Luckily unblocking a jam in our septic system turned out not to be difficult and the guys were very competent and cleared it in about 20 minutes.I paid $240 by credit card on the spot and received a receipt by email with some recommendations for companies to pump the system out.The company was very efficient and did a good job. For the amount of time it took it was a high charge but I guess reasonable for an emergency call-out and being able to use the toilet is a fairly essential aspect of life.Kevin Bishop ★★★★★ I was in Hollywood hospital when Anthony of Kalamunda Plumbing came. But my wife was at home and she told me that Anthony was very professional and reassuring. When we detected we had a hot water leak problem on Easter Monday evening, we had two sleepness nights awaiting the arrival of the plumber. We feared the worst, dismantling of a bathroom perhaps or breaking through a wall!! But when Anthony arrived and after my wife had described what she had heard in terms of water leaking, he was very reassuring to her and guessed correctly the reason for the leak and with the aid of detection equipment, he located the source of the problem. He repaired the ruptured pipe and restored brick paving under which the faulty pipe was located.Such a relief and so many thanks Anthony and Kalamunda Plumbing.Well done Kalamunda Plumbing.Response from the ownerHi Kevin, thanks for your feedback! I'm glad to hear the boys are offering their expert advice when needed. I will definitely pass on your kind words to Tim (and Clayton)! Liam Pully ★★★★☆ I replaced my old rooftop solar with a 250L heat pump supplied and installed by Kalamunda Plumbing. The job was done very well from the initial contact with the office, through to the options of water heating and finance until the installation by the team followed by certification/warranty. They are a professional company and I would highly recommend them for hot water systems.claire Carter ★★★★★ Clayton came out and listened to what we wanted, he offered suggestions. The boys came out the next day and fitted our new hot water system. Everyone was so polite and friendly from office staff to installers. Also left the area clean and tidy. Highly recommend kalamunda plumbing.Robert Dunne ★★★★★ Great and prompt serviceMike Ross ★★★★★ I wanted to support a local business and Kalamunda Plumbing have been around for a long time. Within two (2) days my faulty solar hot water system was swapped out with a new one that works perfectly. Thanks to the team at KP from the office to the site. Great communication and service.Allan Rodrigues ★★★★★ A great local business. Very professional and prompt service. Good communication and pleasant to deal with.J. C. ★★★★★ Kalamunda plumbing plus are a great service. Have used them twice now and very happy with them. They are prompt, efficient and very helpful 😀Stephen Zorbas ★★★★★ Although the problem had resolved itself upon arrival of the two plumbers they clearly explained what they had done and were very professional and polite.Response from the ownerWe appreciate your feedback, Stephen. I'm glad to hear the boys were professional and polite. Katie Hickey ★★★★★ Excellent prompt service and installation of a new hot water unit. Neat and tidy work and polite staff.Phil Metschukat ★★★★★ Very good customer service. Excellent workCraig Colley ★★★★★ Responsive. Clear info on how works would be billed. Very satisfied.Valerie Jones ★★★★★ Excellent service! Squeezed us in during an emergency. Our repairs were done quickly, very tidy job. We couldn't be happier with the service we received. We recommend Kalamunda plumbing plus 100%Response from the ownerThank you for your review, Valerie! We're glad to hear that we could squeeze you in and help you out! Deb Errington ★★★★★ Brilliant team, quick, same day service provided. Tech was friendly, quick to resolve . Thanks so much.Chris Saunders ★★★★★ Quick efficient polite and left the premises clean!Will always use themBill Buchanan ★★★★★ Professionals by any standard who do a good job and do not overcharge.Response from the ownerThanks Bill! We appreciate the kind words. Margaret Russell ★★★★★ Thank you Clayton for your follow up free service today of our 2 y.o., Heat Pump. You were prompt, reassuring & asked me questions.Over all you are pleasure to do business with. 🤗Kim Murdock ★★★★★ Very pleased with all aspects of the work done by Kalamunda Plumbing Plus. They were punctual, polite and extremely pleasant young guys. I would wholeheartedly recommend them to anyone who needs a professional job doing.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!