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The Rinnai EF26 is a condensing gas continuous flow hot water heater, which captures waste heat from the flue gas, through the use of a secondary heat exchanger, to help heat the water with less energy.

  • Hot water delivery of 26 L/min, perfect for NZ homes
  • Reduced price; RRP is now within 10% of the Rinnai INFINITY A26
  • 30% lighter and smaller than the previous EF24 model, now 18 kg and a similar size to the A26
  • Uses 11% less energy than the Rinnai INFINITY A26
  • Inbuilt condensate neutraliser



Suitable for
• external residential applications only
• mains and medium pressure systems

Hard or acidic water will need to be treated to use this product.

  • They are not suitable as a spa or swimming pool heater
  • They are not suitable for hydronic applications
  • They are not suitable as a gas boost for solar connections—the temperature cannot be set high enough, use our HD models instead

Gas type
Available for Natural Gas or LPG. Specify gas type at the time of purchase.

General clearances
The following diagram has been provided to assist you in determining where (and if) an external continuous flow water heater can be positioned. If in doubt, prior to purchase, consult a licensed gasfitter.


Factory preset temp.55 °C
Model code and REU numberEF26 → E2626W-ZK
Hot water capacity26 L/min (1560 L/h) at a 25 ° rise
Exhaust systemForced flue
Frost protectionFitted as standard. Frost protection operates automatically, as long as the appliance is connected to the electrical power supply, by activating when the temperature inside the unit drops below 3.5 °C, and turns off once the temperature inside the unit reaches 7 °C.
Ignition systemDirect electronic ignition
Line pressure (min.)NG: 1.13 kPa, LPG 2.75 kPa
Line pressure (max.)3.5 kPa (maximum standing pressure under abnormal intermittent conditions is 5.0 kPa).

In the case of commercial metering, (i.e. 35-37 kPa coming in), there may be a requirement to regulate the incoming pressure down).
Power consumption

Normal: 63 W 

Standby: 2 W

Automatic Frost Protection: 92 W 

Pressure relief

Valve opens at 2060 kPa

Valve closes at 1479 kPa

Noise level50 dB(A) approx.
Safety devicesFlame failure, boil-dry protection, overheat protection, fusible link, pressure relief valve and combustion fan rpm check
Water supply

Nominal operating pressure:

- 220-1000 kPa 

Activation flow rate: 1.5 litres per minute


18 kg


ES: Supplier Declaration of Compliance

Declaration number:

• EF26 - 1923220199

Market releaseMar 2020

Rinnai INFINITY® EF26 external gas continuous flow water heater

    Return & Refund Policy. 
     Thanks for shopping at,  If you are not entirely satisfied with your purchase, we're here to help. 
    You have 30 calendar days to return an item from the date of purchase.  
    To be eligible for a return, your item must be unused and in the same condition that you received it.  
    Your item must be in the original packaging.  
    Your item needs to have the receipt or proof of purchase. 
    Once we receive your item, we will inspect it and notify you that we have received your returned item.  
    We will immediately notify you on the status of your refund after inspecting the item.  
    If your return is approved, we will initiate a refund to your credit card (or original method of payment).  
    You will receive the credit within a certain amount of days, depending on your card issuer's policies. 
    You will be responsible for paying for your own shipping costs for returning your item.  
    Shipping costs are nonrefundable.  
    If you receive a refund, the cost of return shipping will be deducted from your refund  
    Shipping charges will be charged on all items that include free delivery, if returned.  
    Restocking Fees: 
    A Restocking fees may apply on all returned items. 
    Contact Us If you have any questions on how to return your item to us, contact us on 0508 367 468 or email 

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