Rating 6.1

Infinity 26 Smartstart®

A smarter way to save water.

Australia's first dedicated, domestic water-saving hot water system the Rinnai INFINITY 26 Smartstart has all the same great features of the standard Rinnai INFINITY, but with the addition of a circulating pump to pre-heat the water.

Also available as a separate attachment for a retrofit scenario, our circulating pump is a water smart appliance and will help save you tens of thousands of litres of water over the life of your hot water system.

6.1 Star equivalent energy rating*

Significantly reduce waiting time for hot water

Save our most precious resource – Water

Never runs out of hot water

12 Year Heat Exchanger warranty

Puretemp™ temperature stability technology

  • Highly efficient unit with an inbuilt hot water circulation system
  • Pre-heats the water in the pipes before you turn on the hot tap
  • The Smartstart® is an 'on-demand' pump system that only operates when required
  • Activated from any room that has a water controller
  • Saves thousands of litres of water often washed down the drain
  • 12 year warranty on the heat exchanger

* Star rating applicable to 2013 series product only. Independently calculated using Australian Standard AS4552.  AS4552 limits the rating shown on the energy label to 6.0 Stars.  Where the calculated rating of Rinnai appliances exceeds 6.0 Stars it is designated as an “equivalent” rating.

The product information on this website (comprising product brochures, warranty information, installation manuals, diagrams, specifications and representations) relates to current products. This information may be different for superseded products. For superseded products please contact Rinnai to confirm product information.


Dimensions (mm) : Height


Dimensions (mm) : Width


Dimensions (mm) : Depth



Euro White

Factory Default Temperature (Celsius)


Water Pressure (kPa) : Minimum


Water Pressure (kPa) : Maximum


Gas Rate Min/Max (Mj/h) : NG

14/199 MJ/h

Flow Rate 25 Degrees C/Max : l/min

26 l/min

Star Rating

6.1* Equivalent

Connection Sizes Gas/Hot/Cold (mm)

20 / 20 / 20

Status Monitor


Dimensions (mm) : Height Inc Brackets


Dimensions (mm) : Hot Water Outlet (From Wall)


Dimensions (mm) : Hot Water Outlet (Left from Centre)


Dimensions (mm) : Cold Water Inlet (From Wall)


Dimensions (mm) : Cold Water Inlet (Right from Centre)


Dimensions (mm) : Gas Connection (From Wall)


Dimensions (mm) : Gas Connection (Right from Centre)


Dimensions (mm) : Gas Connection Length (From Base)


Dimensions (mm) : Cold Connection Length (From Base)


Weight (kg)


Hot Connection Length (from base)


Return Loop Connection (from wall)


Return Loop Connection (from centre)


Return Loop Connection length (from base)


Return Loop Fitting Diameter

R20 3/4


  • Where to buy?

    Where to buy?

    You can use the store locator on our website to find your closest store.

  • What does the energy Star rating mean?

    What does the energy Star rating mean?

    Generally, the more stars, the higher the energy Star rating, the more energy efficient the product is.

  • Time to receive hot water at outlet is excessive

    Time to receive hot water at outlet is excessive

    Long pipe work lengths can cool overnight (consider a Smartstart Continuous Flow appliance or a small auxiliary electric tank to affected outlets)

  • Which hot water system suits my needs?

    Which hot water system suits my needs?

    You can use Rinnai’s hot water selector listed on this website to help you in your selection.

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