Discontinued Product, please contact 0800 RINNAI for more information

Discontinued Product, please contact 0800 RINNAI for more information

Rinnai Energysaver 551FT

Rinnai Energysaver 551FT


Spare parts and conversion are no longer available for this heater.
Information such as the operating and installation instructions, specification information, and servicing information (in some cases) is still available to support existing installed models.

High efficiency power flued convection heater.

• low level warm air discharge with modulating fan that selects the ideal fan speed
• thermostat control
• automatic electronic ignition
• 12-hour delay timer
• humidifier tray for comfortable warmth

Suitable for
Commercial applications—open plan areas. Can heat up to 63 m² (depending on geographical location in NZ).
Gas type
Available for Natural Gas or LPG. Gas type specified at time of purchase.

General clearances
The appliance must not be built-in.

Colour: Beige
Input (on high): 22 MJ/h
Output (on high): 5.2 kW  (18.5 MJ/h)
Efficiency: 5-star AGA rating


Air Volume Low 3.8 m³/min.
High 5.6 m³/min
Combustion System Forced combustion with stainless bunsen burner
Connections • Gas R ½ 15 mm BSP male thread
• Flue connection 80 mm diam.
Ignition System Automatic flame sensing continuous spark
Indicators On - green, combustion - red, and timer - green
Safety Devices Overheat switch, thermal fuse, flame failure, fan switch, power failure, air pressure, power surge, and pre-ignition.
Temperature Control Off, med, hi (slide mechanism). Electronic thermostat control.
Temperature Range 13 °C ± 3 °C (low)
39 °C ± 7 °C (high)
Differential of 2 ± 0.5 °C
Weight 27.5 kg
Market Release 1992
Discontinued 2001
Obsolete Dec 2007

All dimensions are in mm.

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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