Featuring a continuous flow design, the Infinity B20 heats water on demand, significantly reducing energy usage compared to traditional storage systems. Its impressive 6 Star energy rating underscores its commitment to sustainability while delivering a strong 20-litre per minute flow rate, making it an ideal solution for growing families.
Built to thrive in Australia’s diverse climate conditions, the Infinity B20 combines durable construction with smart design. A slim, space-saving profile allows flexible installation options, while an easy-to-read status monitor and user-friendly temperature controls enhance daily convenience. Puretemp temperature stability technology ensures a consistent and comfortable hot water experience, even during multiple back-to-back showers.
Available in both Natural Gas and LPG models, this system integrates seamlessly with low-flow fixtures and optional Rinnai hot water controllers for added control. Whether upgrading your existing system or installing in a new build, the Infinity B20 is engineered for performance, efficiency, and peace of mind.

Compact Space-Saving Design
Built with modern homes in mind, the Compact, Space-Saving Design ensures easy installation in smaller outdoor or utility spaces. Despite its slim profile, the system delivers full performance, providing reliable hot water without taking up unnecessary room or limiting installation flexibility.

Endless Hot Water on Demand
Enjoy a constant supply of hot water exactly when you need it. This energy-smart system heats water only as it flows, making it ideal for households that demand reliable performance without unnecessary energy use or waste.

Puretemp Technology
Engineered for comfort, Puretemp Technology keeps water temperature steady even when flow rates vary. This advanced system eliminates sudden fluctuations, delivering a smooth and consistent hot water experience every time, ensuring safety, reliability, and comfort across all household uses.

Optional Hot water Controllers
Enhance convenience with Rinnai’s BC145 and MC145 controllers, designed to give precise fingertip control over water temperature. Ideal for bathrooms or kitchens, these user-friendly units improve safety, comfort, and efficiency by allowing tailored temperature settings for different household needs.


