When it comes to delivering dependable, efficient hot water, few brands are as familiar or trusted in Australia as Rinnai. With decades of innovation behind them – including the game-changing introduction of gas continuous flow technology in the early 1990s – Rinnai hot water systems continue to lead the way in performance, reliability, and environmental sustainability.
As your friendly, experienced Brisbane plumbers, we’ve worked with just about every type of unit out there. In our exclusive Rinnai hot water system review, we’re breaking down the 5 major system types that Rinnai offers – helping homeowners choose the ideal fit for their:
- Property
- Usage habits
- And energy goals.
1. Gas continuous flow hot water systems:
The Iconic Rinnai Choice
Ask any plumber and we’ll tell you – the Rinnai Infinity range is the gold standard for gas continuous flow systems.
These units are compact, wall-mounted, and designed to heat water only when needed – eliminating the standby energy losses common in storage tanks. That’s a major selling point for households that want an uninterrupted supply of hot water without the energy wastage.
One of the biggest advantages? Puretemp technology, which provides incredibly consistent water temperature from outlet to outlet, minimising scald risk and improving comfort. These systems are ideal for mid-to-large households, and they’re available in a range of capacities to suit everything from a one-bedroom apartment to a full family home.
It’s no surprise that gas fitters and plumbers alike continue to provide glowing Rinnai hot water reviews when it comes to the performance and durability of these systems.
2. Electric continuous flow
Smart, Tankless, & Gas-Free
For homes without a gas connection – especially apartments or modern multi-dwelling developments – Rinnai’s Efinity Electric Continuous Flow range is a standout solution.
Like the gas models, these units heat water only on demand, but they’re powered entirely by electricity and require 3-phase power to operate efficiently.
These systems are a great match for customers seeking an eco-conscious upgrade. They don’t store hot water, which means lower energy usage over time. Thanks to advanced internal controls, they also maintain consistent pressure and temperature across multiple outlets – ideal for households with simultaneous shower, laundry, or kitchen use.
When comparing Rinnai electric hot water system reviews, the Efinity stands out for energy savings and sleek, space-saving design.
3. Heat pump systems
Efficiency Through Innovation
Next up is Rinnai’s Enviroflo range – heat pump water heaters that use ambient air to heat water, instead of relying solely on electricity or gas. It’s essentially like having a refrigerator working in reverse, and the result is a dramatic reduction in both energy use and emissions.
This type of system is especially appealing to homeowners aiming to reduce their carbon footprint or take advantage of government energy rebates. We’ve found them particularly popular among customers in Brisbane suburbs looking for sustainability without sacrificing reliability.
If you’ve read any other Rinnai heat pump review recently, chances are it mentions both efficiency and quiet operation. The Enviroflo is built tough for Australian conditions, and because it stores heated water like a traditional tank, it can easily meet the demands of a large household.
From our experience with installations across SEQ, the Rinnai heat pump hot water review consensus is overwhelmingly positive – especially for homes looking to make long-term savings.
4. Solar hot water systems
Harnessing The Power Of The Sun
Australia, and of course Brisbane, has no shortage of sunshine, and Rinnai’s solar hot water systems are designed to make the most of it.
Featuring high-efficiency solar collectors paired with either electric or gas boosters, these systems provide hot water year-round while slashing energy bills and emissions.
The dual-source design is a winner in our book – on sunny days, solar takes the load. On cloudy days, the booster ensures you still get hot showers without delay. It’s an elegant solution for eco-minded homeowners or anyone looking to protect themselves from rising energy costs.
If you’re chasing a detailed Rinnai solar hot water review, the key themes are always the same:
- Long-term cost savings
- Lower environmental impact
- And consistent performance across seasons.
We also remind clients that solar installations may be eligible for federal and state rebates – a nice bonus for reducing the Rinnai hot water system price.
5. Hot water storage systems
Tough, Traditional, Trusted
Rinnai also continues to produce a solid range of gas and electric storage tanks, including their well-known Hotflo and Flowmaster lines.
These are especially popular for property owners looking to replace an existing storage system with minimal fuss – as they often match the footprints and plumbing connections of older units.
In our hands-on experience, they perform well for households with predictable high-usage patterns – like families with back-to-back showers in the morning. And thanks to Rinnai’s robust manufacturing, they hold up in demanding conditions.
The Rinnai Hotflo review feedback we hear most often relates to durability and affordability. For those needing a higher-capacity option, we often recommend the rinnai flowmaster 10, a reliable 10L/min unit that’s ideal for basic applications.
For customers considering a hot water replacement or installation, it’s also worth factoring in the Rinnai hot water system price. While upfront costs vary across system types, many Rinnai units qualify for rebates, and all offer excellent long-term value thanks to low maintenance needs and high efficiency.
Honesty from the industry: S&J’s Rinnai review
As professional plumbers servicing Brisbane, including Brisbane Northside, Brisbane Southside, Logan, Moreton Bay, Redland Bay, Ipswich and beyond, we always give our customers honest, experience-based advice. And when it comes to Rinnai, our verdict is crystal clear: they offer one of the most comprehensive and reliable hot water ranges on the Australian market.
What are you looking for?:
- Tankless efficiency?
- Solar savings?
- A heat pump system that ticks the eco box?
For all that and more, there’s a Rinnai hot water solution to suit. The technology is advanced, the installations are straightforward, and customer satisfaction is consistently high. Our Rinnai hot water system reviews wrap-up reflects what we’ve seen firsthand – quality builds, thoughtful designs, and genuine reliability. Even the more traditional models like the Rinnai Flowmaster 10 continue to meet Aussie expectations after decades in the field.
So if you’re currently researching your options – comparing systems, reading every Rinnai hot water system review you can get your hands on, and hunting for reliable guidance – we’re here to help as well.
Need help choosing or installing a Rinnai system?
Here at S&J Plumbing and Gasfitting, we supply and install Rinnai systems across Brisbane and surrounding areas just about every day. Whether you need help selecting the right unit for your household, replacing an old heater, troubleshooting your Rinnai hot water unit, or accessing eligible rebates, we’ll guide you every step of the way.
Ready to upgrade or replace your Rinnai hotwater system? Contact the friendly local experts at S&J Plumbing and Gasfitting today – we’ll make sure you get the best fit, installed right the first time.

