Rinnai 20L LPG Gas Booster Builders 60C Instant Hot Water System B20L60A B20 Energy Efficient Continuous Hot Water Flow High Capacity for Large Home

Frequently Asked Questions

Is the Rinnai B20L60A suitable for Australian homes?

Yes, absolutely. The Rinnai B20L60A is specifically designed for Australian conditions and is available in both cool and warm climate variants. With a 6.0 star energy efficiency rating, it meets Australia's strict energy standards and will reduce your hot water running costs significantly. The unit is compact (531mm height × 351mm width × 195mm depth) and can be externally installed, making it ideal for most Australian homes. It's compatible with low-flow WELS shower heads, which aligns with Australian water conservation requirements.

How much hot water does this system produce and is it enough for a large family?

The Rinnai B20 has a heating capacity of 20 litres per minute (raised at 25°C), making it suitable for 1-2 bathrooms in cool climates and 1 bathroom in warmer climates according to the specifications. For a large home with multiple bathrooms needing simultaneous hot water use, you may want to consider the 26L variant instead. The minimum operating flow rate is 1.5L/min, so it works efficiently even with low-flow shower heads. This continuous flow design means you'll have endless hot water as long as the unit is running—no tank to empty.

What temperature does it heat water to and can I adjust it?

The Rinnai B20L60A has a factory pre-set temperature of either 50°C or 60°C depending on your model selection. The unit features Puretemp™ technology, which delivers precise and stable water temperature throughout your home. While it's pre-set at the factory, many users find this temperature stability means they don't need to adjust their taps as frequently as with older systems. For specific adjustment questions, we recommend contacting your installer or Yarra Supply directly.

What's the warranty and how reliable is this unit?

The Rinnai B20L60A comes with an impressive 15-year warranty on the heat exchanger, which is the core component of the system. Rinnai is a trusted Japanese brand known for engineering high-quality components built for longevity. With a 6.0 star energy efficiency rating and direct electronic ignition with automatic flame sensing, this unit is designed for reliable, consistent performance. Yarra Supply backs all products with a 30-day returns policy, so you can purchase with confidence.

How much will shipping cost and how quickly will it arrive?

Yarra Supply offers Australia-wide free shipping on this unit, so there are no hidden delivery costs. The Rinnai B20L60A typically arrives within 5-7 business days to most Australian addresses. Given the unit's weight of 14kg and compact dimensions, it's well-packaged for safe delivery. Once it arrives, you'll need a qualified gas fitter to install it, as it requires connection to your LPG gas supply and a 10-amp weatherproof power point (AC 240V, 50Hz). If you're not satisfied after receiving it, Yarra Supply offers a 30-day returns policy.

What are the running costs and how much will I save on energy?

With a 6.0 star energy efficiency rating, the Rinnai B20L60A heats water on demand rather than keeping a large tank hot 24/7, which dramatically reduces energy waste. The exact savings depend on your current system, but most households see 20-30% reductions in hot water energy costs compared to storage tank systems. The unit uses LPG gas and requires minimal electrical input (just the ignition and controls), so your savings will be most noticeable in your gas bills. Over the system's 15+ year lifespan, these savings add up significantly.

Can this system work with multiple bathrooms and water controllers?

The Rinnai B20L60A is rated for 1-2 bathrooms depending on your climate zone. It's compatible with up to 4 water controllers and includes quick-connect systems for easy installation of additional controls. If you have more than 2 bathrooms or want simultaneous high-flow hot water in multiple areas, the 26L variant would be a better choice. The minimum flow rate of 1.5L/min means it operates efficiently even with multiple low-flow shower heads in use, providing stable temperature control across your home.