Discontinued Product, please contact 0800 RINNAI for more information

Discontinued Product, please contact 0800 RINNAI for more information

Rinnai INFINITY® VT-Series

Discontinued Mar/Apr 2018, superseded by the Rinnai INFINITY A-Series

Rinnai INFINITY® VT-Series

The Rinnai INFINITY VT-Series are external continuous flow water heaters designed for external residential applications.

The Rinnai INFINITY VT-Series has improved minimum startup flow rates, saving on water, and ensuring your Rinnai INFINITY is future proofed for water efficient tapware.

The VTa26 model in this range was designed for aggressive water areas (such as Christchurch).

Suitable for:
• external residential applications
• mains and medium pressure systems
• solar installations as a gas boost

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

Gas type
Available for Natural Gas or LPG. Gas type specified at 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.

Clearance below eaves, balconies, and other projections, for all models is 300 mm.

* Rinnai recommend 1.5 m to give enough clearance for the pipe work, and to safely expel flue gases.





Factory preset temp. 55 °C
REU numbers
  • VT16: REU-VR1620WG
  • VT20: REU-VR2024WG
  • VT24: REU-VR2426WG
  • VT26: REU-VR2626WG
  • VTa26: REU-VR2626WGT
Hot water capacity
  • VT16: 1.5-16 L/min
  • VT20: 1.8-20 L/min
  • VT24: 1.8-24 L/min
  • VT26: 1.8-26 L/min (incl. VTa26)
Input and output VT16: Input: 125 MJ/h, output 29.6 kW
VT20: Input: 160 MJ/h, output 34.9 kW
VT24: Input: 188 MJ/h, output 42.1 kW
VT26: Input: 199 MJ/h, output 44.2 kW
Exhaust system Forced flue
Frost protection Fitted 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 system Direct electronic ignition
Injector sizes VT16 & VT20: NG: 0.85, 1.30, LPG: 0.70, 1.05
VT24 & VT26: NG: 1.0, 1.55, LPG: 0.70, 1.1.05
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 operating

VT16  = 38 W (NG), 43 W (LPG)

VT20 = 44 W (NG), 52 W (LPG)

VT24 = 47 W (NG), 53 W (LPG)

VT26 = 54 W (NG), 59 W (LPG)

Power consumption standby

all models 2 W

Power consumption automatic frost protection

VT16, VT20, VT24 = 74 W

VT26 = 125 W

Pressure relief

Valve opens at 2060 kPa

Valve closes at 1479 kPa

Noise level 50 dB(A)
NOx af Less than 60 ppm
Safety devices Flame failure, boil-dry protection, overheat protection, fusible link, pressure relief valve and combustion fan rpm check
Water supply

Nominal operating pressure:

- 120-1000 kPa (VT16)
- 160-1000 kPa (VT20)
- 180-1000 kPa (VT24)
- 130-1000 kPa (VT26)

Activation flow rate: 2.4 litres per minute


VT16 / VT20 = 15 kg, VT24 / VT26 = 17 kg


ES: Supplier Declaration of Compliance

Declaration numbers:

• VT16 - 970820094

• VT20 - 971020094
• VT26 / VTa26 - 12409201012

Market release 2011
Discontinued VTa26 Dec 2013, all other models Apr 2018, superseded by the A-Series

VT dimensions image

Ducted Gas Heating Service Centre

Ducted Gas Heating Service Centre
Operating 5 days a week, 8am to 5pm, Monday to Friday our New Zealand based customer service centre provides nothing but top quality. If you need to book in a Ducted Gas Heating service, we have a team of providers fully trained and equipped with diagnostic tools to service your appliance when you need them. 

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