Rinnai 20L NG Gas Booster Builders 60C Instant Hot Water System B20N60A B20 Energy Efficient Continuous Hot Water Flow High Capacity for Large Home

Frequently Asked Questions

Is the Rinnai 20L gas booster suitable for a large Australian home?

Yes, the Rinnai B20N60A is designed for larger homes and can service 1-2 bathrooms in both cool and warm Australian climates. With a 20-litre heating capacity and a minimum flow rate of 1.5L/min, it delivers continuous hot water on demand without the need for a storage tank. This makes it ideal for homes with multiple bathrooms or high hot water demand.

How energy efficient is this Rinnai model and will it save me money?

The Rinnai B20 has a 6.0 star energy rating, which is superior efficiency. Because it heats water on demand rather than storing it, you'll use significantly less gas and reduce greenhouse gas emissions compared to traditional storage systems. The energy efficiency means lower running costs over time, making the AUD $1189 investment worthwhile for households looking to reduce their utility bills.

What's the warranty on the Rinnai gas booster and is it reliable?

The Rinnai comes with a 15-year warranty on the heat exchanger, reflecting the quality of its Japanese engineering. The unit features direct electronic ignition with automatic flame sensing, high-quality components, and Puretemp™ technology for stable temperature control. It's engineered for longevity and backed by Rinnai's reputation as a leading hot water system manufacturer.

Do I need special plumbing or electrical work installed in my Australian home?

The Rinnai B20N60A requires: a 20mm (3/4″) cold water connection, 20mm (3/4″) hot water outlet, 20mm (3/4″) natural gas connection, and an AC 240V 50Hz weatherproof 10-amp power point. Most Australian homes can accommodate these specifications, but you'll need a licensed gas fitter and electrician to install it safely. The compact design (531mm H × 351mm W × 195mm D, weighing 14kg) allows flexible external installation.

How does this compare to other continuous flow hot water systems in Australia?

The Rinnai B20 combines Japanese engineering, 6+ star efficiency, and water conservation features (WELS-compliant with low-flow shower head compatibility) at a competitive price point. It supports up to 4 water controllers and has a proven track record for reliability. For Australian families wanting efficient, on-demand hot water without storage tank bulk, this is a high-quality mid-capacity option.

What's the delivery timeframe and do I need to arrange installation?

Yarra Supply offers Australia-wide free shipping on the Rinnai B20N60A, and we provide a 30-day returns policy if you need to change your mind. For installation, you'll need to arrange a licensed gas fitter and electrician in your area—this isn't included in the purchase, but the unit's compact design makes it straightforward to fit. We recommend getting installation quotes before ordering to budget for the complete system cost.

Will this work with low-flow shower heads and water-saving fixtures?

Yes, the Rinnai B20 is specifically designed for water conservation and is compatible with low-flow WELS shower heads. With a minimum operating flow rate of 1.5L/min, it works efficiently with modern water-saving fixtures, which is important for Australian households conscious of water usage. The unit also supports up to 4 water controllers, allowing you to manage hot water distribution across multiple outlets without compromising performance.