Hotflo Electric Storage 400L

400 litres: Keeps even the largest families in hot water.

With no loss of pressure and super-sized storage, our large capacity Hotflo Electric Storage Systems will comfortably service Australia’s biggest families. These tank sizes are available in single and twin element configurations. Because we are so confident in the quality of our 400L electric tanks we now offer a 10 year cylinder warranty.

Flexible installation options

Perfect for larger families

10 year cylinder warranty

Single and Twin Element available

  • Vitreous Enamel lined steel tank for added durability
  • Inbuilt anode protection extends the life of the tank
  • Dual handed, allows increased flexibility during installation
  • Pressure temperature relief valve included
  • Suitable for internal and external use
  • Thermostatically controlled with safety temperature shut off for added peace of mind
  • Single and Twin element confirgurations available


Electrical Supply

AC 240V 50Hz

Tank Diameter


Heating Elements Available (kW)

3.6 / 4.8

Weight Empty (kg)


Overall Height


Outlet Height


Inlet Height


Electrical Connection Height – Lower (mm)


Electrical Connection Height – Upper (mm)


Relief Valve Setting (kPa)


Expansion Control Valve Setting


Max inlet pressure (with ECV – kPa)


Max inlet pressure (without ECV – kPa)


Water Connections

RP 3/4 20mm

Ingress Protection Rating (AS1939)


Rated Capacity (Litres)



  • Where to buy?

    Where to buy?

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

  • 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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