Rinnai INFINITY EF250 External

Rinnai INFINITY EF250 External


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Rinnai INFINITY EF250 External

Rinnai INFINITY EF250 external gas hot water (gas califont) unit is fixed to the exterior of your house. A unit ideal for both commercial and residential applications, large families with teenagers or households with spa pools or high hot water usage that provides a significant reduction in running costs and lower energy usage, while still providing the luxury of endless mains pressure hot water.

Temperatures can be set up to 95°C in commercial installations.

Suitable for

  • Commercial and domestic external applications
  • Mains and medium pressure systems
  • Solar installations as a gas boost
  • Hard or acidic water will need to be treated in order to use this product

Gas type
Available for Natural Gas or LPG, specify gas type at time of purchase.

Hot water capacity
1.5 to 37 litres per minute

This is Rinnai’s most efficient continuous flow gas hot water system. Rinnai INFINITY® EF condensing continuous flow gas water heaters effectively capture waste heat from the flue gas through the use of a secondary heat exchanger to help heat the water with less energy.

Technical Statement

Operation Guide

Installation Guide




Gas Type


Shipping times vary for different products please see the list below for estimated shipping timeframes.

Product Shipping Times
Accessories 2-3 days
Basins 5-7 days
Baths 3-5 days
Showers 5-7 days
Toilet 5-7 days
Vanities (excluding Brighton range) Vanities are custom made and have a lead time of 2 weeks. A delivery date will be emailed on receipt of your order.
Vanities (Brighton range) 5-7 days
Heat Pumps 5-7 days
Gas Fires 3-5 days
Installation Accessories 2-3 days
Laundry 3-5 days
Pumps 3-5 days
Tapware 3-6 days
Water Filters 3-5 days
Water Heating Products 3-5 days

View our returns policy