Rinnai Infinity B26

The Rinnai Infinity B26 is Rinnai’s highest-capacity Builder series continuous flow model, delivering 26 litres per minute. It is designed for larger households of 4 or more people in homes with 2-3 bathrooms, and is particularly suited to properties where multiple outlets are regularly used simultaneously, such as two showers and a dishwasher running at the same time. It is also a popular choice for short-term rental properties, home businesses with staff bathrooms, and any property where never running out of hot water under peak demand is the priority.

The Rinnai B26 at $1,549 is $50 more than the Rheem 26 at $1,499. Both deliver 26L/min with a 12-year heat exchanger warranty. The Rinnai B26 has a 6.1-star energy rating versus the Rheem 26’s 6-star rating. The Rheem 26 has a digital OK status display on the unit and is compatible with Rheem’s EZ Link remote temperature controllers. The Rinnai B26 does not have a display panel (that feature is on the Infinity series), but is compatible with Rinnai’s optional MC-601Q controllers. Rheem products installed by Ember carry an additional 2-year extended warranty from Ember, which is a notable value difference. Ember can discuss both options in detail before you decide.

The Rinnai Infinity B26 carries a 6.1-star energy rating, the same as all models in the Rinnai B series. This is achieved through Rinnai’s electronic ignition system (no standing pilot flame gas waste), Puretemp continuous temperature modulation, and on-demand heating that produces no standby energy losses. Rinnai’s independent testing indicates that a 6.1-star continuous flow system uses approximately one-third less gas annually than a traditional 3-star gas storage system of equivalent household output capacity.

Yes. According to Ember’s own comparison guide on the Rinnai Infinity vs B Series, the B26 and Infinity 26 share identical internal components including the heat exchanger, burner, and control circuitry, and have the same 6.1-star energy rating and 26L/min output. The visible differences are the Infinity 26’s LED temperature display (the B26 does not have this) and a slightly different exterior finish. For most homeowners, the B26 offers all the performance of the Infinity 26 at a lower price point.

The Rinnai Infinity B26 carries a 12-year warranty on the heat exchanger for domestic installations. Parts and labour warranty terms for other components apply as per Rinnai’s standard conditions. Rinnai has a nationwide authorised service network with strong representation across Perth, meaning warranty claims and service calls can be attended to promptly. All Ember installations include a Certificate of Compliance for the gas work, which is required for warranty validity under both Rinnai’s terms and WA regulatory requirements.

Yes. The Rinnai B26, like other Rinnai continuous flow units, is compatible with solar pre-heating systems that warm the cold water supply before it enters the unit. In this configuration, the gas unit acts as a booster, if the solar system has pre-heated the water to near the set temperature, the B26 simply tops it up with minimal gas use. In Perth’s high solar resource environment, this combination can reduce gas consumption significantly. If you are considering a solar pre-heat setup, mention this to Ember at the time of booking so the installation is configured correctly.