Discontinued Product, please contact 0800 RINNAI for more information

Discontinued Product, please contact 0800 RINNAI for more information

Eco 16 (REU-1616WE)

Eco 16 (REU-1616WE)


Spare parts and conversion are no longer available for this water heater.

Information such as the operating and installation instructions, specification information, and servicing information (in some cases) is still available to help support existing installed Eco 16 models.
• Compact, externally mounted
• Easy installation
• Energy efficient, gas only used while hot water is flowing
• Temperature factory set to 55 °C

Suitable for
Single bathroom dwellings and ensuites—external installation only.

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

Input: 32-135 MJ/h
Efficiency: 4-star AGA rating
REU Number: REU-1616WE-ZK (SP)


Hot Water Capacity 3-16 litres per minute at a 25 °C rise (960 L/h)
Burner Stainless steel ribbon type
Exhaust System Forced combustion
Flue Forced flue
Gas Control Rinnai electronic control and solenoids
Ignition System Direct electronic ignition
Connections Gas supply: R ¾ 20A (right)
Cold water inlet: R½ 15A (centre)
Hot water outlet: R½ 20A (left)
Power Supply 230/240 V 50 Hz (external 3-pin plug)
Power Consumption Normal - 55 W, standby - 8 W, automatic frost protection - 80 W
Alternative Power 12 V power inverter (can run off a car battery)
Water Supply Min. operating pressure: 70 kPa
Nominal operating pressure: 150-830 kPa
Injector Size NG: 1.7 mm
LPG: 1.0 mm
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 line pressure down.
Test Pressure NG: 0.08 kPa (low), 0.73 kPa (high)
LPG: 0.16 kPa (low), 1.91 kPa (high)
Weight 15 kg
Last sold 1997
Obsolete 2010

Height 538 mm
Width 350 mm
Depth 168 mm

Eco 16 (REU-1616WE)

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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