Rinnai Electric Hot Water System Review: Performance, Pricing & What You Need to Know

Looking for a reliable electric hot water system that won’t let you down? Rinnai’s electric range delivers energy-efficient performance, durability, and household-ready flexibility. In this blog, we break down the key features, real-world pros and cons, and how Rinnai electric systems stack up against competitors.

Why Choose a Rinnai Electric Hot Water System?

Rinnai is a global leader in hot water technology, and their electric storage units are no exception. Whether you're replacing a small under-sink unit or upgrading to a large-capacity household system, Rinnai's Hotflo electric series is engineered for long-term performance with a focus on energy savings and reliability.

Key Features of Rinnai Electric Systems

📦 Variety of Tank Sizes

Rinnai electric hot water systems are available in 25L to 400L capacities, ensuring a suitable model for:

• Apartments and granny flats (25L–80L)

• Medium homes (125L–250L)

• Large households or multi-bathroom properties (315L–400L)

🛠️ Durable Design

• Vitreous enamel-lined steel tanks for rust resistance

• Enhanced sacrificial anodes to protect against corrosion

• Built tough for Australian conditions

⚡ Energy Efficiency

• Models reach up to 5.6-star energy ratings

• Compatible with off-peak tariffs to reduce electricity costs

• Efficient thermostatically controlled heating elements

🔐 Safety & Smart Controls

• Auto shut-off for temperature control

• Pressure and temperature relief valves

• Internal insulation for reduced heat loss

How Much Does It Cost?

🔧 Installation Costs

• Typical install cost: $450 – $1,800, depending on model, accessibility, and location

• Tip: Always get a fixed price quote from JR Gas & Water to avoid hidden fees

💰 Running Costs

• Annual electricity usage: $700 – $925

• Compatible with off-peak and solar setups for lower energy bills

• Demand-based heating reduces unnecessary power draw

Customer Feedback

⭐ Positive Reviews

• Reliable hot water even during peak usage

• Quiet operation

• Noticeable savings on energy bills

• Local support from licensed installers

⚠️ Common Complaints

• Leaking tanks after 6+ years (common for enamel-lined systems)

• Pressure relief valve dripping

• Delays with Rinnai warranty processing (avoid this by using JR's after-sales support)

Sustainability & Environmental Impact

Rinnai electric systems are a sustainable choice thanks to:

• Low standby heat loss

• High efficiency ratings

• Solar booster compatibility

• Reduces your household’s carbon footprint without sacrificing performance

For even greater efficiency, consider upgrading to a heat pump hot water system.

Rinnai vs Other Brands: How Does It Stack Up?

Despite lacking some advanced features of premium competitors, Rinnai’s electric models excel in long-term savings, proven reliability, and nationwide service coverage.

Summary: Is Rinnai a Good Electric Hot Water Option?

✅ YES — if you want solid performance, energy savings, and an Australian-backed warranty.

Rinnai electric hot water systems are:

• Energy-efficient

• Long-lasting

• Available in a size for every home

• Backed by JR Gas & Water, 3x winner of Best Plumbers and Best Home Care Store in 2023, 2024 & 2025

FAQs

What tank sizes are available for Rinnai electric systems?
You can choose from 25L, 50L, 80L, 125L, 160L, 250L, 315L, and 400L units.

How efficient are they?
Many models are rated up to 5.6 stars and compatible with off-peak power.

Is Rinnai better than a heat pump?
Electric storage systems are more affordable upfront, but heat pumps are more energy-efficient long-term.

What issues are most common?
Over time: pressure valve issues, enamel corrosion (if water is poor quality), and slow warranty response.

How can I get it installed with full support?
Book with JR Gas & Water for expert supply and installation across Brisbane and the Gold Coast.

Let me know when you're ready for the next one.