Upgrade from gas storage to instant gas hot water.
We recently helped a customer in Eastwood replace their old Rheem gas storage hot water system with a modern Rheem 28 litre continuous gas hot water system. This upgrade improved both the customer’s energy efficiency and gave them more outdoor space.
Their previous ground storage water heater had served well for many years, but was becoming expensive to run, constantly reheating stored water even when it wasn’t being used. The large tank also took up valuable room along the side of the house.
Once onsite at the property, we inspected the current setup, we recommended a upgrading to a new Rheem 28 Continuous Flow Gas Hot Water System. This was a compact, wall-mounted solution that provides hot water on demand with no energy wasted reheating a tank.
The benefits of switching to continuous gas hot water
Continuous flow or instantaneous / instant gas water heaters are an increasingly popular choice for households wanting to reduce energy use and free up space. Some of the benefits include:
- Lower running costs, as water is heated only when needed.
- Unlimited hot water — perfect for families or homes with multiple bathrooms.
- A slim, wall-mounted design that saves outdoor space and looks tidy.
- Reduced gas usage and lower greenhouse emissions.
- Consistent water temperature for comfort and safety.
- Scalable systems — multiple units can be connected for larger properties.
- Compatible with solar or gas boosters for even higher efficiency.
Rheem 28 Continuous Flow Gas Hot Water System
The Rheem 28L/min Instant Gas Hot Water System (model 876B28NF) is one of Australia’s most trusted continuous flow units, delivering exceptional performance and efficiency. Producing up to 28 litres of hot water per minute, it’s perfectly suited for medium to large households with higher hot water demands.
With a 6-star energy rating, it offers excellent gas efficiency and helps reduce ongoing running costs. Its compact, wall-mounted design not only saves valuable outdoor space but also gives a clean, modern finish to any home. Built with Flamesafe® overheat protection and a durable, all-weather construction, the Rheem 28L is designed for safety and reliability in Australian conditions.
For added peace of mind, it’s backed by a 15-year heat exchanger warranty and 3 years parts and labour, ensuring long-term dependability and value for homeowners.
Energy efficient hot water solutions
Once the customer confirmed their choice, our licensed hot water technician removed the old storage tank and mounted the new Rheem unit on the exterior wall. The change was immediate — improved efficiency, extra usable space, and endless hot water whenever needed.
The homeowner was thrilled with the result and surprised at how quickly the system was installed and ready to use.
If your existing gas storage water heater is taking up space or driving up your gas bills, an instantaneous hot water system is a smart upgrade.
At Cheapa Hot Water Sydney, we supply and install all major brands, including Rheem, Rinnai, Dux and Bosch, and can recommend the most efficient solution for your household.