Counting Down Australia’s Top 6 Hot Water System Brands

Are you choosing the perfect hot water system for your home? We know it can be a daunting task, especially with so many options out there on the Australian market – and with so many of them being less than amazing! It’s not just a matter of choosing the appropriate technology type – electric, gas, solar, instantaneous, heat pump. It’s also a matter of finding a reliable, reputable brand offering products that are efficient, durable, and provide long-term value for money. But with so many hot water system brands all vying for your attention (and money!), it’s absolutely essential to know which ones stand out for their quality and performance.

Here at S&J Hot Water Brisbane, we’ve already shown you our ‘top brands’ on our homepage. But to give you even more assistance as you make a truly informed choice, we’ve added our vast industry experience with the most authoritative hot water systems reviews out there. The result? Our exclusive list of our top 6 best hot water system brands country-wide. Our countdown not only highlights each brand’s unique features and product offerings, but what we think really makes them the most preferred choices for savvy Australian homeowners.

6. Thermann

It’s a relatively new entrant in the hot water system market but has quickly become one of the fastest-growing brands in Australia and New Zealand. Backed by Reece, a well-established industry giant, Thermann has distributed over 500,000 units across the country already.

What makes Thermann unique?

Heat exchanger warranty: Thermann continuous flow gas units come with an industry-leading 12-year warranty on the heat exchanger, offering homeowners extra peace of mind.

Reece support & installation: Since Thermann is backed by a very special hot water brand – Reece – it benefits from a huge supply network, ensuring fast part replacements and expert-approved installations.

High-efficiency gas systems: Their 5-star gas storage units feature fast recovery times, meaning less waiting for hot water after heavy household use.

**BONUS READ: Thermann Hot Water Troubleshooting: The Ultimate Go-To Guide

5. AquaMax

It’s a leader in stainless steel storage tanks, in particular. Australian-based, AquaMax is best known for these highly impressive tanks, which are far more durable than traditional vitreous enamel tanks.

What makes AquaMax unique?

All stainless steel gas storage range: AquaMax offers an entire range of stainless steel storage tanks (from 50L to 315L), while many competitors only offer limited stainless steel models.

10-year tank warranty: AquaMax provides one of the longest tank warranties on the market, thanks to the corrosion resistance of stainless steel.

High-pressure output: Their gas storage models allow multiple taps to run at full pressure, making them ideal for large families.

4. Bosch

When we think Bosch, we recall the pioneers of continuous flow hot water systems. Precise German engineering certainly does help, as the brand has been a key innovator in continuous flow hot water technology and remains a leader in energy efficiency across the technology range.

What makes Bosch unique?

Powerless pilot ignition gas systems: Bosch offers gas continuous flow systems that require no electricity whatsoever, making them ideal for off-grid homes.

European-engineered heat exchangers: Unlike some brands that use mass-produced heat exchangers, Bosch’s are precision-engineered for longevity.

HydroPower ignition models: Some Bosch systems use water pressure to ignite the burner, meaning no need for an external power source – ideal for rural areas.

3. Dux

Dux. It’s a long-standing Australian quality, because what’s better than that? Operating now for over 100 years, Dux has a strong reputation for quality, backed by Japanese engineering expertise through parent company Noritz.

What makes Dux unique?

Prodigy gas storage range: Dux’s Prodigy range features fast recovery rates, meaning hot water replenishes impressively quickly after use.

Airoheat heat pump system: Dux’s Airoheat series is one of the most efficient electric heat pump systems available, offering a great alternative to solar hot water. It’s not a traditional electric system, but that doesn’t mean we don’t think it’s perhaps the best electric hot water system in Australia.

Dual-handed storage tank connections: Some Dux hot water storage models have inlets and outlets on both sides, giving plumbers more flexibility during installation.

**BONUS READ: A Full Guide To Troubleshooting Dux Hot Water Systems

2. Rinnai

When we think about Rinnai, two features of the brand spring to mind – innovation, and smart technology. Japanese brands tend to be impressive, but Rinnai has been a top-rated water heater brand right here in Australia for over 50 years, bringing cutting-edge efficiency and control to its systems.

What makes Rinnai unique?

Rinnai Infinity series: Industry-leading gas continuous flow systems with smart temperature control, low-flow activation, and recirculation technology to reduce water wastage.

Smart Wi-Fi controllers: Rinnai’s smart controllers allow homeowners to set exact water temperatures from an app on their phone.

High-flow models for large homes: The Rinnai Infinity 32 is one of the highest-capacity continuous flow units available – perfect for big families.

**BONUS READ: A 10-Step, Easy Troubleshooting Guide For Rinnai Hot Water

1. Rheem

It’s Australia’s most trusted hot water brand – for very, very good reasons. No brand is more widely used, trusted, or long-lasting in Australia than Rheem – we all remember those “Install a Rheem!” adverts from decades ago, right? With a huge range of gas, electric, solar, and heat pump systems, Rheem consistently ranks as the best water heater Australia has to offer.

What makes Rheem unique?

Rheem Stellar series: It’s a 5-star gas storage system with exceptionally high recovery rates, making it perfect for households needing large amounts of hot water fast.

Rheem solar premier systems: They’re some of Australia’s most advanced solar hot water systems, maximising energy savings.

First-to-market innovations: Rheem has pioneered self-cleaning water storage tanks, reducing sediment buildup and extending system lifespan.

Unmatched service network: Rheem has the largest repair and replacement network in Australia, ensuring fast solutions if something goes wrong.

**BONUS READ: A 10-Step DIY Troubleshooting Guide For All Rheem Hot Water Systems

Choosing the best hot water system for your home

In all honesty, when you’re browsing these hot water brands, the best choice really does often depend almost totally on your needs:

• For stainless steel durability – AquaMax
• For off-grid or rural homes – Bosch
• For large households needing high-flow rates – Dux or Rinnai
• For cutting-edge smart tech & control – Rinnai
• For overall reliability & service – Rheem.

But all of our best hot water system brands brings something unique to the table. No matter what you’re prioritising, rest assured there’s a perfect hot water solution for your home.

Need help choosing? Call S&J Hot Water Brisbane!

Still not sure which hot water system and brand is right for your home? Whether you need hot water repairs in Brisbane, or a new system installation or replacement, S&J Hot Water Brisbane can help. Our expertise covers all major water heater brands, ensuring fast, professional service and expert recommendations tailored to your needs.

Call today to discuss the best hot water systems in greater detail – and book in your service!