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iHeat operation guide: 12063-A 01-13
About your Rinnai iHeat
Congratulations on the purchase of your Rinnai iHeat combined water and heating system.
The Rinnai iHeat is a ducted home heating system that uses hot water from your Rinnai Infinity
continuous flow water heater to warm air and circulate it around your home.
Suitability
The Rinnai iHeat may be retrofitted to any home with an existing Rinnai Infinity continuous flow water heater, or
both units can be installed simultaneously.
The Rinnai iHeat can be installed in the ceiling space or under the floor. It must not be mounted in areas subject
to direct splashing—this is relevant to underfloor installations that could be exposed to water.
Specification summary
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Power output
= nominal 20 kW, maximum 25 kW (dependent on installation)
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No. outlets
= up to 12 (each outlet provides approximately 1.8 kW)
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Heating area
= up to 250 m² (depending on where you live and how well insulated your house is)
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Efficiency
= delivers heat at the same efficiency as the Rinnai Infinity
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Noise level of fan
= sounds like an air conditioning unit
The Rinnai Infinity provides hot water to the iHeat air handler unit (heat exchanger). The heat exchanger extracts
the heat from the hot water and transfers it to a steady stream of air. This air is fed into the ducting system and is
distributed into each room. Water is returned to the Infinity for reheating.
The Rinnai iHeat is controlled via a wall thermostat which has three fan speed settings and can control up to four
different schedule periods per day.
* Ensure the Rinnai Infinity is positioned where overnight operation will not disturb occupants or neighbours.
Rinnai Infinity continuous flow installed—external or internal* models available
Rinnai iHeat installed in the ceiling space or under the floor
Ducting outlets—up to 12, each outlet provides approximately 1.8 kW
Rinnai thermostat controller provides multiple control options
