Discontinued Product, please contact 0800 RINNAI for more information

Discontinued Product, please contact 0800 RINNAI for more information

Rinnai Infinity HD250i Internal (REU-VM3237FFUC)

Rinnai Infinity HD250i Internal (REU-VM3237FFUC)


Internal continuous flow gas hot water heater preset to 75 °C. Room sealed, fan assisted appliance.

This is a flued appliance with two separate flues.

Hot water capacity
2.4 to 37 litres per minute.

Energy efficiency

Suitable for
• Commercial and domestic internal applications
• Applications requiring higher hot water temperatures, can be set up to 95 °C
• Mains and low pressure systems

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

Colour: Silver
Input: 250 MJ/h or 69 kW
Output: 57.6 kW
Efficiency: 83%
Energy Star Rating 5.0 stars

Capacity Hot water capacity: 2.4 to 37 litres per minute
Nominal water capacity: 32 litres per minute at a 25 °C rise (1920 L/h)
Connections Hot water oulet: R¾ (20 mm)
Cold water inlet: R¾ (20 mm)
Gas supply: R¾ (20 mm)
Exhaust System Forced flue
Ignition System
Direct electronic ignition
Injector Size NG: 1.00, 1.65,   LPG: 0.75, 1.15
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 line pressure down.
Noise Level 49 dB(A)
Power Consumption Normal: 72 W, Standby: 2 W, Automatic Frost Protection: 116 W
Pressure Relief Valve opens at 2060 kPa, valve closed at 1470 kPa
Safety Devices Flame failure, boil-dry protection, overheat protection (OHS), fusible link, pressure relief valve, combustion fan rpm check
Water Supply Nominal operating pressure: 140-1000 kPa
Minimum water flow: 2.4 litres per minute
Weight 25 kg
Market Release 2007


A Width 470
B Depth 220
C Height of unit 600
D Height including brackets 620
E Hot water outlet from wall 112~149
F Hot water outlet from centre 61
G Cold water inlet from wall 94~135
H Cold water inlet from centre
(measurement is to the left of the centre line)
I Gas connection from wall 56~96.5
J Gas connection from centre 110
K Condensate outlet from wall
L Condensate outlet from centre
M Gas: Length of gas connection (from base)
Cold: Length of cold water inlet (from base)
Hot: Length of hot water outlet (from base)

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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