Looking for a reliable, energy-smart hot water solution? The Infinity B20 Gas Continuous Flow Hot Water Heater is perfect for single-bathroom homes and even suitable for two bathrooms in warmer areas.

This continuous flow gas system heats water only as needed, meaning you’ll enjoy the comfort of endless hot water - without the high energy bills. With a superior 6 Star energy rating*, this 20L system offers powerful performance while keeping efficiency front and centre.

Crafted to endure harsh Australian weather conditions, the Infinity B20 combines performance with practicality through features like slim, modern design that fits almost anywhere, user-friendly temperature display for easy adjustments and Puretemp™ stability control for consistent water temperature.**

Covered by Rinnai’s 25 year heat exchanger warranty***, the Infinity B20 is built for longevity and peace of mind.

Take your system to the next level with Rinnai’s optional hot water controllers, giving you extra control and convenience at the push of a button.

Optional Accessories

Universal Water Controller

Downloads

PRODUCT BROCHURE (PDF)

OPERATION & INSTALLATION MANUAL (PDF)