Instantaneous gas hot water vs gas storage water heaters
We recently completed the upgrade of a Hornsby customer’s old Rheem gas storage hot water system to a new energy-efficient instantaneous gas water heater.
After many years of reliable service, their old Rheem water heater had become inefficient and costly to run, constantly using energy to keep water hot even when it wasn’t being used. The storage tank was bulky, and the customer was keen to start using the side of the house where the old tank was located.
They contacted us for ideas, and we suggested replacing the storage tank with a new Rheem 28 Instant Gas Hot Water Heater. This is a compact, wall-mounted water heater that delivers endless hot water on demand.
Why switch from a gas storage water heater to instant hot water?
Instantaneous (or continuous flow) gas hot water systems are an excellent choice for homeowners looking for efficiency, reliability and space savings. Unlike traditional storage tanks, these systems only heat water as it’s needed, providing a steady supply of hot water without wasting energy.
Features and benefits of instant hot water:
- Lower running costs because energy is only used when hot water is required, with no power wasted reheating stored water.
- Endless hot water supply that’s ideal for families or households with multiple bathrooms, ensuring no one runs out mid-shower.
- Compact, wall-mounted design that saves valuable outdoor space and offers a clean, modern appearance.
- Environmentally friendly performance that reduces gas consumption and lowers greenhouse emissions for a more sustainable home.
- Consistent temperature control for comfort and safety.
- Scalable capacity, allowing multiple units to be linked to meet higher demand.
- Compatibility with solar or gas boosters for even greater energy efficiency.
Features of the Rheem 28 instant hot water system
The Rheem 28 litre instant gas hot water system (model:876B28NF) is one of Australia’s most popular continuous flow systems, known for its efficiency, performance and reliability.
- 28 L/minute delivery rate – ideal for medium to large homes with several bathrooms.
- 6-Star energy rating – outstanding efficiency that helps lower gas bills.
- Compact, wall-mounted design – saves space and offers a clean, modern appearance.
- Advanced safety technology – includes Flamesafe® overheat protection and precise temperature control.
- Durability and peace of mind – backed by a 15-year heat exchanger warranty and 3 years parts and labour.
While storage systems remain a reliable choice, instantaneous units are increasingly popular for homeowners seeking energy efficiency, space savings and reduced gas consumption.
The water heater installation process
With the customber happy with their choice, we safely removed the old storage tank and cleared the site. We then supplied and installed the new Rheem 28 instant gas hot water system neatly on the external wall. The result was immediate, the customer gained extra outdoor space, improved energy efficiency and an endless supply of hot water whenever needed. They couldn’t be happier!
Upgrade to energy-efficient hot water
If your old gas storage tank is costing you money or taking up too much space, upgrading to a Rheem 28 litre instant gas hot water system (model:876B28NF) is a smart move. It’s efficient, compact and delivers hot water only when you need it, saving energy and reducing your household gas bills.
With more than 30 years of experience, we specialise in fast hot water repairs, replacements and upgrades for all makes and models.