Large Capacity Gas Storage

170 Litre Storage Capacity: Perfect for Australia’s biggest households.

The Rinnai 170 litre HOTFLO Gas unit can deliver generous amounts of hot water to multiple showers and taps without loss of pressure. And thanks to its fast recovery system, it can deliver up to 257 litres in the first hour.

4 Star energy rating*

First hour delivery capacity – 257 litres

Vitreous Enamel lined steel tank

8 year cylinder warranty

  • First hour delivery capacity* - 257 litres
  • 4 Star energy rating
  • Storage capacity – 170 litres
  • Vitreous enamel lined steel tank adds durability
  • Inbuilt anode protection extends the life of the tank
  • Pressure temperature relief valve
  • External use only
  • Available in Natural and Propane Gas
  • Thermostatically controlled with safety temperature shut off for added peace of mind
  • 135 litre variant also available

*45°C temperature rise, 15°C cold supply temperature


Gas Consumption (Mj/h)


Weight (Empty)


Relief Valve Setting (kPa)


Max water supply without ECV (kPa) 800
Max water supply with ECV (kPa) 680

Expansion Control Valve Setting (kPa – if required)


Recommended PLV (kPa – if required)


Water Connections

RP 3/4 20mm

Rated Capacity (Litres)


Height – Hot Water Outlet


Height – Cold Water Inlet




Gas Type

NG and LPG

Water Capacity in First Hour (Litres)



  • 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.

  • 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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