An upgrade to energy-efficient instant gas hot water.
We recently helped a Fairlight customer upgrade their old gas storage water heater to a modern, energy-efficient Rheem instantaneous gas hot water system.
After many years of service, their existing gas storage water heater had become inefficient and expensive to run. Because it constantly reheated stored water, it was using energy even when no one was home or needed hot water. The bulky tank also took up valuable space along the side of the house, which the homeowners want to landscape and make look nicer.
They reached out to us for advice. Once on-site at the property later that day, we were able to assess the property and recommended the Rheem 28 Instant Gas Hot Water System. This compact, wall-mounted unit provides continuous hot water on demand while dramatically improving energy efficiency.

The benefits of switching to instant gas hot water
Instantaneous, instant or continuous flow gas systems are popular with homeowners and businesses seeking greater efficiency, reliability and space savings. Unlike traditional storage tanks that keep water hot around the clock, these systems only heat water when you turn on the tap. This saves both energy and money.
Instantanous gas hot water advantages:
- Lower running costs since energy is only used when hot water is required
- Endless hot water, even for large households with multiple bathrooms
- Compact, wall-mounted design that saves valuable outdoor space
- Reduced gas use and greenhouse emissions for an eco-friendly home
- Consistent water temperature for comfort and safety
- Option to link multiple units for higher hot water demand
- Compatible with solar or gas boosters for added efficiency
Features of the Rheem 28 Instant Gas Hot Water System
The Rheem 28L Instant Gas Hot Water System (Model 876B28NF) is one of Australia’s most trusted continuous flow units. It’s designed for high performance, energy savings and reliability, making it a great fit for Northern Beaches homes.
- 28-litre per minute flow rate – ideal for medium to large families
- 6-star energy rating – reduces gas bills and energy consumption
- Wall-mounted design – saves outdoor space and looks clean and modern
- Flamesafe® overheat protection for added safety
- Stable temperature control for consistent comfort
- Backed by a 15-year heat exchanger warranty and 3-year parts and labour cover
Installing the gas hot water system
Once the customer confirmed their choice, we safely removed the old storage tank, cleared the area and installed the new Rheem 28 unit neatly on the external wall.
The result was immediate with the homeowner enjoying endless, energy-efficient hot water and extra outdoor space. The customers were surprised we were able to supply and install the new system right there on the spot.
GET IN TOUCH
If your old gas storage water heater is taking up too much room or driving up your energy bills, upgrading to an energy-efficient, instantaneous gas hot water system is a smart investment.
With over 30 years of experience, the team at Cheapa Hot Water Northern Beaches specialises in fast hot water repairs, replacements and upgrades for all makes and models. Based in Warriewood, we are able to offer emergency assistance to Northern Beaches residents, workplaces, strata mangers and managing agents.

