Rinnai iHeat

Model: RAHU20

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.

Whole home heating that is fast and efficient With the same high efficiency as your Rinnai Infinity continuous flow water heater and heat output of 20 kW, the Rinnai iHeat will be efficient and fast at heating your home.

  • Includes iHeat unit and Rinnai thermostat  

How it works

Rinnai iHeat - How it works

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. 

 
Energy Efficiency Approx. the same as the Rinnai Infinity—over 80% depending on the Infinity model and ducting used.
Heating Area Up to 250 m² (depending on where you live and how well insulated your house is).
Minimum Pipe Size 15 mm ID
Number of Outlets 3-12, each outlet provides approx. 1.8 kW
Power Output Nominal 20 kW, maximum 25 kW (depending on installation). Power output of fan is 0.6 kW.
Return Air Intake Min. size is 1500 cm².
Return air filter is mandatory.
Spigot Size • Supply air: 300 mm ID
• Return air: 350 mm ID
Approx. external diameter of return air ducting—430 mm.
Weight Total shipping weight approx. 56.4 kg
Market Release February 2013
 

 

Homes with a gas connection and an existing Rinnai Infinity (or planned installation of a continuous flow hot water unit).

Homes where the iHeat unit can be installed in a ceiling space, or under the floor—subject to the clearances shown below. The unit cannot be positioned outside.

  • Heating area: Up to 250 m² (depending on where you live)
  • Number of outlets: 3-12 (each outlet provides approx.1.8 kW)
  • Hard or acidic water will need to be treated to use this product.

Clearances

The iHeat should be positioned so that the LED's are easily visible through the window of the control board. Avoid positions that make access to the iHeat and removing components difficult.

Rinnai iHeat-on-pallet-with-clearances

  • Above unit: 450 mm minimum
  • Sides of unit: 750 mm minimum
  • Front and behind unit: 1 m minimum  

 

Rinnai iHeat with Dimensions

Additional dimensions

  • Approximate end-to-end measurement = 1125 mm
  • If suspended mounting is used, add an additional 300 mm to the top of the unit.
  • Total width of unit is 760 mm—this includes the control box.  
Downloads
Operation Guide
Running Costs
Installation Overview
Thermostat Installation
Spares
Specifying Guide
Fittings Kit
iHeat Brochure
Ducting Guidelines

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