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We were recently contacted by a homeowner in Penrith who had noticed their hot water supply was disappearing far more quickly than normal. Their rooftop solar hot water system had been remarkably dependable for many years, and they mentioned they rarely gave it a second thought because it had always performed reliably, even when visitors stayed. We organised a convenient time during their lunch break so they could let us access the property.
When we inspected the system, it became obvious what was causing the loss of hot water. The rooftop tank had begun leaking due to internal corrosion. Water had started escaping from the cylinder and travelling across the roof before draining into the guttering. Because the tank could no longer hold its full volume or retain heat effectively, the household ran out of hot water much faster than usual. The solar collectors were still operational, but the ongoing water loss prevented the system from functioning as intended.
If your system is leaking or losing heat, call our 24/7 emergency hotline on 0410 693 532.
Installing a new rooftop solar hot water system
It was clear that the old solar hot water tank installed on this Penrith customer’s roof had reached the end of its serviceable life. Corrosion had weakened the cylinder, and overall performance had deteriorated significantly.
We only recommend replacement when repair is no longer a viable or economical option. Internal corrosion in a rooftop tank cannot be reversed. Once the metal begins breaking down, insulation efficiency drops, leaks become more frequent, and there is an increased risk of the tank failing without warning. Small repairs may temporarily delay problems, but they cannot halt the ongoing decay. In cases like this, full replacement provides the safest and most cost-effective outcome.
The homeowner reviewed their options and selected a Rheem Hiline Solar Hot Water System, opting for the 300-litre stainless steel storage model (52L300). Using our rooftop handling equipment, we removed the old system and installed the new one in the same location alongside the home’s existing solar PV panels. The upgraded system now delivers efficient solar hot water and integrates seamlessly with their renewable energy setup.
Boosting solar hot water performance with rooftop solar panels
Solar hot water systems offer significant long-term savings, especially when paired with modern solar technology. Today’s units provide excellent solar heat absorption, stronger insulation, and improved energy performance. With long warranties and reliable construction, homeowners enjoy consistent hot water and reduced energy bills.
Connecting the solar hot water system to rooftop solar PV allows the electric booster to operate using solar-generated electricity rather than grid power. This can dramatically reduce operating costs, increase efficiency, and lower environmental impact. With the new system installed, this Penrith household now benefits from steady year-round hot water, improved overall performance, and reduced electricity expenses.
The electric booster only activates when sunlight alone isn’t enough to heat the water — for example, during winter or periods of prolonged cloud cover. When powered through the home’s solar PV system, the booster uses free solar energy instead of electricity billed from the grid. Gas boosting options are also available where required.
Rheem Solar Hot Water Solutions – Penrith Area
Rheem Hiline Solar Hot Water Systems
The Rheem Hiline 52L Series relies on natural thermo-siphon circulation, warming water in the solar collectors before it rises back into the rooftop tank. The 300-litre 52L300 model suits households of between two and five people, offering durable stainless steel construction and four Colorbond® colour choices.
Features
The system is available in several Colorbond® colours and includes a stainless steel tank designed for longevity. Gas or electric boosting options can be selected depending on household needs. The 300-litre capacity suits medium-sized families, and collectors can be chosen from the NPT200, L, or CSA2007 ranges.
Specifications
The Rheem 52L300 system is a 300-litre rooftop solar water heater suited to homes with two to five occupants.
Warranty
Warranty terms vary with collector selection. NPT200 collector systems include seven years of supply coverage for both the cylinder and collectors, three years of labour for those components, and one year of parts and labour. Systems using L or CSA2007 collectors offer ten years of supply for the tank and collectors, as well as five years of labour and five years of parts and labour. These warranties apply to domestic single-dwelling installations.
Penrith solar hot water specialists
Authorised repair and installation specialists for all solar makes and models.
Whether your solar system has sprung a leak, isn’t heating properly, or is approaching the end of its life, our team can help. We repair, replace, and install all major solar hot water brands, including Rheem, Solahart, Rinnai, Apricus, Chromagen, Edwards, and Quantum.
Our technicians are licensed and authorised to repair and install all leading brands. Our vehicles carry a wide range of spare parts to ensure fast repairs without delays. Because we manage the entire process — from diagnosis to installation — you won’t need to coordinate multiple trades. We also provide genuine 24/7 emergency assistance for urgent breakdowns and leaks.
If your system is underperforming, losing heat, or due for servicing, we offer prompt repairs, emergency hot water system changes, and scheduled maintenance. Regular servicing every five years helps prevent breakdowns, maintain efficiency, extend lifespan, and protect your warranty.
Contact
With more than 30 years of industry experience, our local team at Cheapa Hot Water Penrith delivers dependable, professional solar hot water services across the entire district. Contact me today for expert help with repairs, system replacement, or routine maintenance.
John Graham
Cheapa Hot Water Penrith