Gas Hot Water Systems Adelaide

Installations From $1199 | 10-Year Manufacturer’s Warranty*

Upgrade to an energy efficient gas hot water system today. Existing unit removal only $50.

Looking to replace your old gas storage unit? Or thinking of switching to a continuous flow system?

At Level Plumbing Adelaide, we specialise in gas hot water systems—from new installations to same-day emergency repairs. Whether your system has failed or you're ready to upgrade to something more efficient, we’ll recommend the right solution and get it installed quickly, cleanly, and to code.

We work with trusted brands like Rinnai, Rheem, Bosch, Dux and more, backed by Master Plumbers South Australia, $0 callout fees, and a 12-month workmanship guarantee.

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Adelaide's Hot Water Experts

Thinking of Upgrading from Storage to Instant?

Why Adelaide Households Are Making the Switch

Traditional gas storage units heat water in a tank and keep it warm all day, which can lead to energy waste. Instant (continuous flow) gas systems only heat water as you use it—saving energy, space, and money.

Endless Hot Water

Great for families or homes with high demand.

Smaller Footprint

Compact, wall-mounted units free up space.

Lower Energy Bills

Only heats water when needed.

Longer System Lifespan

Fewer mechanical parts means fewer breakdowns.

We’ll assess your plumbing, gas line, and household needs to ensure your upgrade is safe, efficient, and compliant.

08 8272 8542

Compare Our Latest Rinnai Continuous Flow Hot Water Units

Not sure which system is right for your home? Compare our latest models by home size, energy rating, use case and more. Our team is on call to help you find the best unit for your home.

*Price applies to replacement of the same size and type of system (e.g. 135L gas replaced with 135L gas). Your current system must be installed to code. Extra cost applies if a tempering valve is needed.

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Plumbing Rinnai B16 Gas Continous Hot Water

Rinnai B16 $1199 fully installed*

Suitable for small units/homes with 1-1.5 bathrooms (Continuous flow unit, 16L/min, provides hot water “continuously” until the unit is switched off)
10 years parts warranty and 3 years Labour warranty on the Heat Exchanger
3 years parts and labour warranty on all other components
6.2 Star rating
Remove your existing water heater for only $50 extra

Plumbing Rinnai B20 Gas Continous Hot Water v2

Rinnai B20 $1299* fully installed

Suitable for small units/homes with 1-2 bathrooms (Continuous flow unit, 20L/min, provides hot water “continuously” until the unit is switched off)
10 years Parts warranty and 3 years Labour warranty on the Heat Exchanger
3 years Parts and Labour warranty on all other components
6.1 Star rating
We will remove your existing water heater for only $50 extra

Rinnai B26 $1399* fully installed

Suitable for small units/homes, with 2-3 bathrooms (Continuous flow unit, 26L/min, provides hot water “continuously” until the unit is switched off)
10 years Parts warranty and 3 years Labour warranty on the Heat Exchanger
3 years Parts and Labour warranty on all other components
6.1 Star rating
We will remove your existing water heater for only $50 extra

Plumbing Rinnai Gas Continuous Flow Infinity 26 Touch

Rinnai Infinity Touch 26 $2099* fully installed

Wireless remote control technology included

Suitable for small units/homes with 2-3 bathrooms (Continuous flow unit, 26L/min, provides hot water “continuously” until the unit is switched off)
10 years Parts and Labour warranty on Heat Exchanger*
3 years Parts and Labour warranty on all other components
6.1 Star rating
We will remove your existing water heater for only $50 extra

Rheem Hot Water Units

Plumbing Rheem Pronto 12 Gas Continous Hot Water

Rheem Pronto 12 $1299* fully installed

Ideal for replacing Bosch pilot or hydro units.

Suitable for small units/homes with 1 bathroom (Continuous flow unit, 12L/min, provides hot water “continuously” until the unit is switched off)
No power point required
10 years parts warranty and 3 years labour warranty on the Heat Exchanger
3 years parts and labour warranty on all other components
6 Star rating
Remove your existing water heater for only $50 extra

Plumbing Rheem Pronto 16 Gas Continous Hot Water

Rheem Pronto 16 $1399* fully installed

Ideal for replacing Bosch pilot or hydro units.

Suitable for small units/homes with 1-1.5 bathrooms (Continuous flow unit, 16L/min, provides hot water “continuously” until the unit is switched off)
No power point required
10 years parts warranty and 3 years labour warranty on the Heat Exchanger
3 years parts and labour warranty on all other components
6 Star rating
Remove your existing water heater for only $50 extra

Plumbing Rheem Metro 16 Gas Continous Hot Water

Rheem Metro 16 $1199* fully installed

Comes on steady hot and strong

Suitable for small units/homes with 1-1.5 bathrooms (Continuous flow unit, 16L/min, provides hot water “continuously” until the unit is switched off)
10 years parts warranty and 3 years labour warranty on the Heat Exchanger
3 years parts and labour warranty on all other components
6 Star rating
Remove your existing water heater for only $50 extra

Rheem Metro 26 $1399* fully installed

Comes on steady hot and strong

Suitable for large homes, with 1-1.5 bathrooms (Continuous flow unit, 26L/min, provides hot water “continuously” until the unit is switched off)
10 year parts & 3 years labour on heat exchanger*
3 years parts and labour warranty on all other components
6 Star rating
Remove your existing water heater for only $50 extra

Plumbing Rheem Integrity 27 Gas Continous Hot Water

Rheem Integrity 27 $1599* fully installed

Comes on steady hot and strong

Suitable for large homes, with 2-3 bathrooms (Continuous flow unit, 27L/min, provides hot water “continuously” until the unit is switched off)
10 year parts & 3 years labour on heat exchanger*
3 years parts and labour warranty on all other components
6.1 Star rating
Remove your existing water heater for only $50 extra

Brands We Install

Other makes and models available upon request.

Your Gas Hot Water Questions Answered

If you're tired of running out of hot water or want a more compact option with potentially lower energy costs, continuous flow is worth considering. We’ll inspect your property and let you know if your current setup is suitable for the upgrade.

We work with trusted brands including Rheem, Rinnai, Bosch, Dux, Thermann and more. We can recommend the best system based on your usage, budget, and home size.

Yes, our team regularly upgrades older storage systems to new continuous flow units. We’ll check your existing gas line and water pressure to ensure compatibility and complete the switch safely and efficiently.

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