Switch to an energy efficient gas hot water system

energy efficient gas hot water systems

From rooftop solar to an energy-efficient gas water heater.

We were recently contacted by a customer in Belrose, on the Northern Beaches, who suspected their rooftop solar hot water system was leaking.

As would be expected, it’s difficult (and often dangerous) for many homeowners to regularly inspect their rooftop solar hot water systems.  That’s where we can help!

When the customer noticed wet patches on the ceiling of their back sunroom, below where their rooftop solar was positioned, they called us for advice.

Unfortunately, after providing more than 25 years of reliable hot water service, the old Solahart solar hot water system was no longer operating efficiently, and ongoing leaks made it clear that repairs would only be a temporary fix. It was time for a replacement that would give the customer reliability, energy efficiency, and peace of mind.

Signs your rooftop solar hot water system may be leaking

Even small leaks can quickly escalate, wasting water, reducing energy efficiency, and in some cases damaging your roof or ceiling. That’s why it’s important to have rooftop solar systems inspected as soon as these symptoms appear. Below are some common signs your rooftop solar hot water system may be leaking.

  • Water dripping from the roof – noticeable on gutters, eaves, or downpipes where the system is mounted.
  • Wet patches or staining on ceilings – if the leak has allowed water to seep into the roof cavity.
  • Reduced hot water supply – less hot water available because heated water is being lost through the leak.
  • Higher water bills – unexplained increases due to continuous water wastage.
  • Hissing or dripping sounds – noises from the roof area, particularly around the collectors or tank.
  • Steam or condensation – visible during heating cycles, suggesting escaping hot water.

Switching from solar hot water to an energy-efficient gas water heater

After many years of reliable solar hot water, this Belrose customer wanted to switch to a new Rheem energy-efficient gas hot water system.  In recent years, gas hot water has become a reliable and energy-efficient way to produce hot water.

Why this customer chose gas hot water

  • Replacement cost – repairing or replacing a rooftop solar system can be expensive, especially if both the collectors and tank need renewal.
  • Energy efficiency – modern gas hot water systems are extremely efficient, with Rheem’s 5 Star range designed to minimise running costs.
  • Simplicity – a ground-level unit is easier to maintain and service compared to a rooftop system.
  • Reliability – gas systems provide hot water on demand, regardless of weather or sunlight conditions.

This choice gave the customer an energy-efficient solution without the high upfront cost of a full solar replacement.

Benefits of Rheem’s 5 Star gas storage range

The Rheem 5 Star gas storage hot water systems are among the most trusted on the market, delivering lower running costs thanks to their 5 Star energy efficiency and strong mains pressure that allows multiple taps and showers to run at the same time without performance loss.

With a fast recovery rate, hot water is quickly replenished after use, ensuring a consistent supply for busy households.

Built with Rheem’s trademark durability and reliability, these systems are designed to last, while ground-level installation makes servicing and future replacements straightforward and cost-effective.

remove solar hot water system from roof sydney
Above: Safe removal of a rooftop solar hot water system from another customer’s roof.

Safe removal of the old rooftop solar system

One of the most important parts of this job was safely removing the old rooftop solar system. Many plumbers simply disconnect the system and leave it in place because they don’t have the tools, expertise, or confidence to take it down safely. This can cause problems later, including roof damage, safety risks, and unnecessary weight load on the property.

As hot water specialists, we have the experience, equipment, and training to remove rooftop solar systems safely and efficiently. This ensures the customer is left with a clean roof, no hazards, and a professional finish.

Switching from solar to gas hot water

The process of switching from rooftop solar to a new gas hot water system began with a full system assessment, where we inspected the existing solar setup, discussed the customer’s hot water needs, and explained the available replacement options.

Once a decision was made, our team proceeded with the safe removal of the old rooftop solar collectors and storage tank. This step is critical — not only does it ensure the property is left safe and secure, but it also prevents future issues that can arise when outdated equipment is left sitting on the roof.

With the old system removed, we carried out the installation of the new Rheem 5 Star gas storage hot water unit, positioning it neatly at ground level for ease of use and servicing.

We then completed all necessary plumbing, gas fitting, and electrical connections, thoroughly testing the system to ensure it was running efficiently, safely, and delivering the strong hot water performance the customer expected.

Finally, we handled the cleanup and disposal of the old solar system, transporting it away and recycling materials where possible to minimise waste.

Need advice?  

Not only do these customers enjoy the reliability and energy savings of a brand-new Rheem 5 Star gas storage hot water system, but they have the peace of mind knowing their new unit is safe, efficient, and built to last.

Beyond installations, we also provide expert advice to households wanting to explore energy-efficient gas hot water solutions. Whether you’re looking to replace a failing system, upgrade to a more cost-effective option, or better understand the benefits of modern gas technology, our team can guide you through the choices and help you find the best fit for your home.

If your hot water system is leaking, underperforming, or simply costing you more than it should, don’t wait until it fails. Call our friendly team for professional advice and fast, affordable installation of the most energy-efficient hot water solutions available.