Meet the New Rinnai Infinity B Range – Perth’s Next-Gen Gas Continuous Flow Hot Water System

If you’re searching for a top-quality, efficient, gas hot water system in Perth, the newly rebranded Rinnai Infinity B Range is now one of the best options available. Ember Plumbing & Gas is excited to bring this range to Perth homeowners—combining the reliability of the old Infinity and B Series with upgraded features, better energy efficiency, and modern safety controls.

In this guide, we’ll explain what makes the Infinity B range stand out, key features, model options, why it’s a great fit for Perth conditions, and how Ember Plumbing & Gas can help you choose, install, and maintain the right unit for your home.

Why Rinnai Combined the Infinity & B Series

Rinnai’s Infinity and B Series were already solid performers. With the Infinity B rebrand, they’ve brought both together into one unified line—offering clarity for customers and improved technology within a single lineup. Here’s what this rebranding means:

• Clearer choices: Instead of having two overlapping product lines, now there’s one Infinity B range with various model sizes so you can pick based on the size of your household and hot water demand.

• Modernisation: Enhanced features like the Puretemp™ temperature stability technology, upgraded burners, smarter controls, and more consistent performance.

• Warranty improvements: For example, many of the Infinity B models come with a 25-year extended heat exchanger warranty, boosting long-term protection and peace of mind.

Key Features of the Infinity B Range

Here are the stand-out features that make the Infinity B ideal for Perth homes:

1. Gas Continuous Flow Design
   The Infinity B provides hot water on demand; you won’t need a storage tank that takes up space or wastes heat between uses. Great for homes that want consistent hot water without the wait.

2. Puretemp™ Temperature Control
   Ensures safe, consistent delivery of hot water temperature—even as demand changes. This helps prevent scalding and keeps performance comfortable.

3. Low Emission Burners & Energy Efficiency
   These units are built to reduce emissions and lower running costs. Many models are rated with high Star equivalent energy ratings (e.g. 6.2, 6.1, 6.0, 6.0, etc.) depending on the model, which means better efficiency and less gas used.

4. Multiple Fuel Options
   Many Infinity B models are available in Natural Gas or LPG, giving flexibility depending on your gas supply in Perth.

5. Model Variety for Different Household Sizes
   The range includes different sizes:

   • • Rinnai Infinity B12 

     • Rinnai Infinity B16

     • Rinnai Infinity B20

     • Rinnai Infinity B26

6. Status / Operation Monitor
   Each model has a status or operation monitor so you can see that it’s working properly, giving added reassurance of its performance.

7. Warranty
   The Infinity B range upgrades include a 25-year extended warranty on the heat exchanger—one of the best warranties in the gas continuous flow hot water category.

Why the Infinity B Range Is a Great Match for Perth

Perth has hot, dry summers and cooler winters, with occasional cold snaps. That makes hot water demands variable. Here’s why the Infinity B is well suited for our climate:

• No reliance on sunlight (unlike solar units), so performance stays strong through cloud, evening, and winter.

• Gas supply is reliably available in most areas of Perth; LPG options cover places without natural gas mains.

• High flows to meet simultaneous demand (showers, laundry, kitchen) without drop in hot water temperature.

• Energy efficiency helps with rising gas bills—using a continuous flow unit reduces heat loss associated with stored hot water tanks.

Models & Sizing – Picking the Right Unit for Your Home

Here are some guidelines (based on the Rinnai Infinity B spec) to pick the right model for your household in Perth:

It’s important to match model capacity with actual hot water demand (e.g. number of showers running at once, kitchen, laundry use). Ember Plumbing & Gas can help you assess your current usage and recommend the optimal model so you don’t overspend or underdeliver.

Cost & What to Expect With Installation in Perth

Here are typical costs and considerations when installing a Rinnai Infinity B system in Perth:

• Supply cost depends on the model you choose. Higher capacity units tend to cost more.

• Installation cost includes gas plumbing, gas connection checks, power for controls, venting, and safe flue discharge. Because continuous flow systems require proper venting and gas pressure, sometimes additional pipework or venting adjustments are required.

• Ember Plumbing & Gas provides fixed quotes up front, including supply, compliance, and removal of any old unit if doing a replacement.

You could expect somewhere in the ballpark of mid-hundreds to low thousands depending on model size, complexity, and site conditions. But the long-term savings from lower gas usage and the benefits of no more running out of hot water often justify the investment.

Maintenance, Servicing & Long-Term Benefits

To ensure your Rinnai Infinity B unit keeps performing:

• Annual or biennial service is recommended—clean burners, check variation in gas pressure, inspect venting.

• Temperature sensors & filters should be inspected to maintain Puretemp™ performance.

• Warranty: the 25-year heat exchanger warranty means Ember Plumbing & Gas will support you long term with authorised servicing and genuine parts.

Long-term benefits include not just lower gas bills, but less risk of breakdowns, longer unit life, stable hot water performance, and peace of mind.

Why Choose Ember Plumbing & Gas for Your Rinnai Infinity B Needs

As a Perth-based specialist, Ember Plumbing & Gas can offer:

• Authorised Rinnai supplier and installer of Infinity B units

• Full compliance with WA plumbing & gas regulations

• Transparent quotes with no hidden fees

• Skilled installation & workmanship backed by warranty

• Local support, servicing, and repair quick response

If you want, Ember Plumbing & Gas can inspect your current hot water system, advise if switching to an Infinity B makes sense, and handle full supply + install + compliance.

The Rinnai Infinity B Range is a strong evolution in gas continuous flow hot water systems—bringing updated technology, better warranties, consistent performance, and energy savings. For Perth homeowners, it offers a smart upgrade, especially if you’re replacing an older unit, want better reliability, or need hot water for a growing household.

If you’re ready to explore how the Infinity B fits your home, or you want help sizing, price comparison, or a full installation, call Ember Plumbing & Gas today. We’ll make sure your hot water is reliable, efficient, and suited to your budget.

Contact Ember Plumbing & Gas to get your free quote on Rinnai Infinity B hot water system supply and installation in Perth