Rinnai Hot Water System
A Rinnai hot water system offers Sydney homeowners and businesses a dependable, energy-efficient way to enjoy hot water all year round. At Sydney Hot Water Systems, we specialise in Rinnai installation, repair, and maintenance for both residential and commercial clients. Whether you’re upgrading your old unit or need emergency servicing, our licensed Sydney plumbers provide fast, affordable, and reliable solutions tailored to your property.

Rinnai 26L Infinity Indoor Continuous Flow Gas Hot Water System – 50 Degree
- 6-star energy rating
- Puretemp™ temperature stability technology
- Extra safety - 50°C temperature limited model
- 12-year heat exchanger warranty
- Quality Japanese design and manufacturing
Rinnai 26L Infinity Indoor Continuous Flow Gas Hot Water System – 60 Degree
- 6-star energy rating
- Puretemp™ temperature stability technology
- 60°C hot water for kitchen and laundry - where 50°C may not be hot enough
- 12-year heat exchanger warranty
- Quality Japanese design and manufacturing
Rinnai 26L Infinity touch Continuous Flow Gas Hot Water System – 50 & 60 Degree NG
- 7-star energy rating
- Puretemp™ temperature stability technology
- Extra safety - 50°C temperature limited model
- 25 year Extended Heat Exchanger Warranty
- Quality Japanese design and manufacturing
Rinnai 26L Infinity Touch Continuous Flow Gas Hot Water System – 50 Degree
- Natural Gas Model
- Temperate adjustable using a remote control
- Never run out of hot water again
- Built to last using high quality components
- 12/25 Year heat exchanger warranty, a true testament to Rinnai’s faith in their products
- 6 Star Energy Efficiency Rating
- Child Lock & Smartstar preheat system functions
- Compatible with water saving & waterfall showers heads
Rinnai 26L Infinity Touch Continuous Flow Gas Hot Water System – 60 Degree
- Natural Gas Model
- Temperate adjustable using a remote control
- Never run out of hot water again
- Built to last using high quality components
- 12/25 Year heat exchanger warranty, a true testament to Rinnai’s faith in their products
- 6 Star Energy Efficiency Rating
- Child Lock & Smartstar preheat system functions
- Compatible with water saving & waterfall showers heads
Rinnai 315L 4.8kW Hotflo Electric Hot Water System – Single Element
- Vitreous Enamel lined steel tank for added durability
- Inbuilt anode protection extends the life of the tank
- Suitable for off-peak connection, saving you money
- Suitable for internal and external use
- 10-year cylinder warranty
- Made in Australia
Rinnai 315L 4.8kW Hotflo Electric Hot Water System – Twin Element
- Vitreous Enamel lined steel tank for added durability
- Inbuilt anode protection extends the life of the tank
- Suitable for off-peak connection, saving you money
- Suitable for internal and external use
- 10-year cylinder warranty
- Made in Australia
Rinnai 32L Infinity Continuous Flow Gas Hot Water System – 50 Degree
- 5-Star efficiency rating
- Puretemp™ temperature stability technology
- Extra safety - 50°C temperature limited model
- 12-year heat exchanger warranty
- Quality Japanese design and manufacturing
Rinnai 32L Infinity Continuous Flow Gas Hot Water System – 60 Degree
- 5-Star efficiency rating
- Puretemp™ temperature stability technology
- 60°C hot water for kitchen and laundry - where 50°C may not be hot enough
- 12-year heat exchanger warranty
- Quality Japanese design and manufacturing
Rinnai 32L Infinity Continuous Flow Gas Hot Water System – NG
- 7-star energy rating
- Puretemp™ temperature stability technology
- Extra safety - 50°C temperature limited model
- 25 year Extended Heat Exchanger Warranty
- Quality Japanese design and manufacturing
Rinnai 400L 4.8kW Hotflo Electric Hot Water System – Single Element
- Vitreous Enamel lined steel tank for added durability
- Inbuilt anode protection extends the life of the tank
- Suitable for off-peak connection, saving you money
- Suitable for internal and external use
- 10-year cylinder warranty
Rinnai 400L 4.8kW Hotflo Electric Hot Water System – Twin Element
- Vitreous Enamel lined steel tank for added durability
- Inbuilt anode protection extends the life of the tank
- Suitable for off-peak connection, saving you money
- Suitable for internal and external use
- 10-year cylinder warranty
Affordable Rinnai Hot Water Solutions
Sydney Hot Water Systems delivers cost-effective Rinnai hot water system installations and servicing throughout the region. Rinnai units are built with precision Japanese engineering, providing long-lasting performance and superior energy efficiency. We install and maintain every model—from compact electric storage tanks to powerful continuous-flow systems and sustainable Rinnai heat pump hot water system options.
Our professional team ensures your installation is handled to the highest standards of safety and compliance, following Australian plumbing regulations and energy-efficient water heating guidelines. We’ll assess your property’s hot water needs and recommend the ideal solution—be it a Rinnai gas hot water system, Rinnai electric hot water system, or an advanced hybrid design.
Why choose Rinnai?
- Renowned for durability and energy efficiency
- Low running costs
- Modern, space-saving designs
- Comprehensive Rinnai hot water system warranty coverage
- Supported by authorised Sydney service experts
Enjoy peace of mind with professional installation and genuine parts—backed by the trusted service of Sydney Hot Water Systems.

Book Rinnai Hot Water Installation Today
Need a new hot water system? Our licensed plumbers can install your Rinnai hot water heater quickly and efficiently. We provide same-day services across Sydney, ensuring you don’t spend another day without hot water.
The process is straightforward:
- Consultation: We inspect your property and recommend the ideal system.
- Quote: Receive a clear, upfront estimate with no hidden fees.
- Installation: Your new unit is fitted and tested to meet Australian standards.
- Cleanup & Support: We remove your old unit and provide aftercare guidance.
Each installation is supported by a full Rinnai hot water system warranty and Sydney Hot Water Systems’ workmanship guarantee.
Want a fast quote? Simply get in touch with our team now for a professional installation.
Get Fast Rinnai Hot Water Repairs Now
When your system breaks down, our experts are ready to help with Rinnai hot water repairs Sydney-wide. We handle everything from leaks and ignition faults to complete system failures. Whether you own a Rinnai gas heater, Rinnai electric hot water systems, or a Rinnai 315L hot water system, we’ll quickly diagnose and repair the issue to restore your hot water. Our Rinnai hot water service repairs include thermostat and valve replacement, tank cleaning and pressure testing, gas ignition and burner troubleshooting, and resolving Rinnai solar hot water problems. We also provide regular Rinnai gas heater service to ensure safe and efficient performance.
Our plumbers are fully licensed and insured, adhering to all NSW safety regulations for every job. Beyond repairs, we offer tailored maintenance plans to extend your system’s lifespan and boost efficiency—so you’ll always have dependable hot water when you need it most.

Instant Rinnai Hot Water Systems – Get a Quote
Rinnai’s continuous-flow systems deliver hot water on demand, ideal for Sydney homes and businesses that value energy efficiency. At Sydney Hot Water Systems, we offer competitive pricing, transparent quotes, and expert advice on choosing the right model.
Our continuous-flow range is perfect for those who want:
- Instant, endless hot water
- Reduced energy bills
- Compact wall-mounted units
- Reliable performance during peak usage
Whether you’re comparing models or upgrading your home, we’ll help you find the best Rinnai gas hot water systems for your needs.
Check Rinnai Hot Water System Cost
When it comes to the Rinnai hot water system price, the total cost depends on the system type, capacity, and installation requirements. As a general guide, electric systems are more affordable upfront and ideal for smaller households, while gas continuous flow units offer moderate pricing with excellent long-term efficiency. Heat pump or hybrid systems have a higher initial cost but deliver lower running expenses and environmental benefits over time.
At Sydney Hot Water Systems, we provide clear, itemised quotes for every job—so you’ll always know exactly what you’re paying for. Whether you’re upgrading an existing system or installing a new one, our team ensures transparent pricing and expert advice to help you choose the best value Rinnai hot water system for your Sydney property.
Compare Rinnai Hot Water System Prices
Before making your decision, compare Rinnai models for efficiency, warranty, and long-term value. Some of our most popular models include:
- Rinnai Infinity gas series
- Rinnai Enviro continuous-flow
- Rinnai 315L hot water system (electric storage)
- Solar-ready options for eco-friendly households
Each unit includes a comprehensive Rinnai hot water system warranty, ensuring lasting performance and dependable service life. Take advantage of our latest deals and special offers on selected models today! Need help deciding? Explore our website for detailed product insights and exclusive promotions.
When Can Installation or Repair Be Done for You?
We provide same-day installation and repair services Sydney-wide, with most appointments scheduled within 24 hours. Our experienced technicians cover all major Sydney regions, including the Eastern Suburbs, North Shore, and Inner West, ensuring fast and efficient service no matter where you’re located.
For urgent jobs or emergency breakdowns, you can reach our team directly through our Contact Us page for priority assistance. We’ll get your Rinnai hot water system back up and running quickly—so you never have to go without hot water for long.
Why Choose Sydney Hot Water Systems
With over 20 years of industry experience, Sydney Hot Water Systems has built a solid reputation as one of the most trusted local providers of Rinnai hot water system services. Our licensed and insured Sydney experts are available 24/7 for emergency repairs, offering transparent pricing with no hidden costs. As an authorised Rinnai service provider, we deliver dependable workmanship backed by genuine parts and manufacturer-approved methods.
We also take pride in our eco-friendly installation and disposal practices, helping Sydney households reduce waste and improve energy efficiency. Ready to experience reliable hot water again? Contact Sydney Hot Water Systems today to schedule your Rinnai installation, repair, or maintenance service with Sydney’s trusted experts.
Frequently Asked Questions
Usually, it lasts between 10 and 15 years with regular maintenance.
Yes! We provide same-day installs and repairs across the metro area.
Yes, all models include a Rinnai hot water system warranty.
It’s often due to a blocked filter or valve issue—contact our team for inspection.
Yes, we fix Rinnai electric hot water systems and Rinnai gas heaters alike.
Irregular heating, leaks, or strange noises are key indicators.
Rinnai is one of Australia’s top hot water brands, known for reliability and value.
Yes, we install and maintain Rinnai systems for businesses across Sydney.