Rinnai Hot Water Repairs or Replacement
Rinnai Hot Water Services in Adelaide
Repairs, Replacements & New Installations by SOS Plumbing & Gas
If you have ever had your hot water cut out in the middle of a shower, you know how frustrating it can be but with SOS Plumbing & Gas as your local hot water plumber, you never have to deal with it for too long. We make sure that you get the best and fastest hot water service in Adelaide. From a faulty unit to when you are planning an upgrade, or building new - we can do it all. We provide reliable and cost-effective solutions for Rinnai hot water systems across Adelaide.
We work with all Rinnai models—instantaneous, gas storage, electric, solar, or continuous flow—and our goal is simple --- to get your home back to comfortable living with hot water that just works. Every single day.

What Makes SOS Plumbing & Gas the Right Choice?
We know Adelaide homes. We know Rinnai. But most importantly, we understand what matters to our customers and that is fast service, fair pricing and work done properly the first time. Here’s why locals trust us with their Rinnai systems:
Thank you for reading this post, don't forget to subscribe!- 24/7 emergency hot water service available all throughout Adelaide
- Same-day repairs when possible
- Hot water repairs starting $99
- Licensed and experienced plumbers who specialise in Rinnai units
- Honest advice about whether to repair or replace
- Upfront pricing with no hidden surprises
- We clean up after the job is completed - always
From quick hot water repairs near you to full system upgrades, we are here to make the whole process smooth, simple, and stress-free.
Rinnai Hot Water Repairs Adelaide – Fast & Reliable
Is your Rinnai system leaking, failing to heat, making strange noises or showing error codes? Don’t wait and call our 24/7 plumber today. Our Adelaide-based hot water plumbers respond quickly and carry common parts on hand, so we can often fix your system on the spot. We service all types of Rinnai systems including:
- Gas hot water repairs
- Electric hot water repairs
- Solar hot water repairs
- Continuous flow & instantaneous units
- Gas storage systems
- Gravity-fed systems
No job is too small. We will assess the issue, explain what’s wrong, answer your questions and get it fixed quickly. If your unit can be saved, we will save it.
Time to Replace Your Rinnai System?
If your hot water unit is getting older, breaking down frequently, or costing you too much to run, it might be time for an upgrade. We will help you choose a new Rinnai system that suits your household’s size, budget and energy usage. If you plan to stay with gas, switch to solar or if you are looking into electric options, we have all the reliable and high-performance makes and models to suit your preference. Our team handles everything from safe removal of the old unit to expert installation of the new one. We will even walk you through how to use and maintain it to get the most life out of your investment.
Thinking about energy efficiency? Rinnai’s range includes some of the most water- and energy-efficient hot water systems on the market, helping you reduce both bills and your carbon footprint.

New Rinnai Installations – Expertly Done By Adelaide’s Trusted Hot Water Plumbers
Building a new home or setting up a granny flat out the back? We will help you choose the perfect Rinnai system for your space and make sure it’s installed to manufacturer standards. Correct placement, secure fittings, smart pipework layout—these details matter more than people realise, and we take the time to get them right.
From large family homes to compact units, we design your hot water setup to match your lifestyle—not the other way around.
Don’t wait around for hot water to return. Whether it’s a quick repair, a full system replacement, or installing a new Rinnai hot water system, SOS Plumbing & Gas is ready to step in and get things sorted. Call us today or send a message online. We will be there fast with the right advice and the right solution.
24 Hour Emergency Service
Plumbing trouble in Adelaide ? We’re here around the clock, whether it’s a leak or a full-on pipe blockage.

Call us for a quote
Have a problem? Tell us everything we need to know to fix it.

1 Hour Arrival Time Guranteed*
Day or night, rain or shine, we’re always ready—no waiting, no worries.

We solve your problem quickly
We’ll arrange for one of our plumbers to visit promptly and all workmanship guaranteed
Our 3 Easy Step Process

QUOTE
Get an accurate price over the phone

ORGANISE
A mutually agreed time

COMPLETE
By sending one of our expert plumbers
Products

Rinnai 315L Heat Pump - Efficient & Reliable
- Easily replaces standard electric systems with no major changes
- Cuts greenhouse emissions without needing solar panels
- Made in Australia for long-lasting reliability
- Available in 250L or 315L sizes to suit your home
- All-in-one design makes installation a breeze
- Super quiet operation under 48 decibels
- Uses R290 refrigerant for low environmental impact
- Built to handle hard water and high pressure up to 1000 kP
- Consult our hot water plumber today for details

Rinnai 250L Heat Pump - Lower Energy Bills
- Straightforward upgrade from your electric system
- Lowers energy bills and emissions, no solar needed
- Designed for Aussie homes with local conditions in mind
- Comes in 250L or 315L depending on your needs
- Quick to install and easy to get running
- Quiet enough for a peaceful home
- Eco-friendly tech with low-charge R290 refrigerant
- Hard water friendly and handles up to 1000 kPa
- Lightweight design for easier handling
- Consult our hot water plumber today for details

Rinnai Hotflo 25L Electric Storage
- Compact size, big performance with a 25L tank
- Fits neatly under benches or in tight spots
- Built-in safety with a thermostatic shut-off
- Strong enamel-lined steel tank with extra protection
- Choose from single or twin-element models
- Standard sizing makes swap-outs quick and easy
- Small footprint, great for internal installs
- Built tough for long-term use
- Easy plumbing with dual connection points
- Comes plug-in ready or hardwired
- Consult our hot water plumber today for details

Rinnai Hotflo 50L Electric Storage – Quick Installation
- Fast, same-day setup included
- We’ll take care of your old unit, no hassle
- Compact build fits neatly under counters
- Ideal for tight indoor spaces
- Strong steel tank with enamel lining for durability
- Extra anode protection for a longer tank life
- Dual-handed design for flexible install options
- Fitted with pressure temperature relief for safety
- Designed for indoor setups
- Safe and smart with thermostatic temperature control
- Consult our hot water plumber today for details

Rinnai Hotflo 80L Electric Storage – Smart & Reliable
- Same-day install gets your hot water running fast
- Old unit removal included for easy upgrades
- Great for medium-sized households
- Solid build with enamel-lined tank
- Extra life thanks to internal anode protection
- Fits almost anywhere with dual connection points
- Pressure relief valve keeps it safe
- Works for both indoor and outdoor locations
- Temperature control for safe, steady operation
- Consult our hot water plumber today for details

Rinnai Hotflo 125L Electric Storage - Ideal For Big Homes
- Instant installation with hot water on the same day
- We’ll remove your old system at no charge
- Perfect for families or bigger households
- Built tough with an enamel-lined steel tank
- Anode tech protects against corrosion over time
- Dual-handed design makes setup simple
- Includes pressure and temperature relief safety valve
- Can be installed indoors or out
- Keeps water at a safe, steady temperature
- Consult our hot water plumber today for details

Rinnai 160L Electric Hot Water For Mid-Size Homes
- Reliable hot water for families of 4–5
- Internal anode adds years to your tank’s life
- Thermostatic shut-off for safe temperature control
- Made for local Aussie conditions
- Install indoors or outside—your choice
- Slim design saves space without sacrificing capacity
- Enamel-lined tank handles tough conditions
- Dual-handed for flexible plumbing
- Comes with pressure relief safety valve
- Choose single or twin-element setups
- Consult our hot water plumber today for details

Rinnai Hotflo 250L Electric Storage – Perfect For Large Households
- Quick install with hot water ready the same day
- Free disposal of your old unit included
- Big enough for large households with lots of hot water use
- Option to go single or twin-element
- Built for years of use with enamel-lined steel
- Anode protection adds tank life
- Fits flexibly with dual-handed design
- Comes safety-fitted with a pressure relief valve
- Works well indoors or outside
- Consistent hot water with thermostatic control
- Consult our hot water plumber today for details

Rinnai Hotflo 315L Electric Storage – Indoor Or Outdoor Use
- High capacity without pressure drop
- Designed and built in Australia
- Single or twin-element options available
- Fits both indoor and outdoor installs
- Strong enamel-lined tank built to last
- Anode protection to extend lifespan
- Dual-handed connections for easy setup
- Includes pressure relief safety valve
- Thermostatic shut-off keeps temps safe
- Consult our hot water plumber today for details

Rinnai 16L Infinity Gas – Hot Water On Demand
- 16 litres per minute of non-stop hot water
- Japanese-designed for reliability and performance
- Same-day install with free old system removal
- Saves energy and cuts emissions
- Smart temperature control keeps things safe
- Compact build fits nearly anywhere
- Great for warmer Aussie water temps
- Consult our hot water plumber today for details

Rinnai 20L Infinity Gas – Endless Hot Water
- 20 litres per minute of continuous flow
- Precision-engineered in Japan
- Installed same day, old unit taken away
- Energy-efficient to help cut bills
- Set the perfect temp with advanced controls
- Small footprint, flexible for any space
- Eco-friendly with low emissions
- Consult our hot water plumber today for details

Rinnai 26L Infinity Gas – Top Performance
- Big output at 26 litres per minute—perfect for large homes
- Built in Japan for durability and peak efficiency
- Fast setup and removal of your old system included
- Smart tech reduces energy costs
- Consistent temp control for comfort and safety
- Compact and flexible design
- Performs even in tough Aussie conditions
- Consult our hot water plumber today for details

Rinnai B16L Builders – Smart & Small
- Reliable 16L flow for smaller homes or units
- Same-day install and hassle-free old unit removal
- Solid Japanese engineering for efficiency
- Instant hot water whenever you need it
- Smart temperature control keeps things safe
- Consult our hot water plumber today for details

Rinnai B20L Builders – Perfect For Family Homes
- 6-star energy rating means major savings
- Setup is quick with free old system disposal
- Great for medium to large families
- Hot water flows instantly at 20L per minute
- Built to last with quality engineering
- Consult our hot water plumber today for details

Rinnai B26L Builders – Powerful Hot Water for Larger Homes
- Delivers 26L per minute of instant hot water
- High efficiency with a 6-star energy rating
- Installed quickly with old unit taken care of
- Top-quality Japanese tech ensures long-term use
- Compact size for easy installation anywhere
- Consult our hot water plumber today for details