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Infinity HDC1600i Low-NOx 58.4kW Commercial Water Heater

Infinity HDC1600i Low-NOx 58.4kW Commercial Water Heater

Rinnai Infinity 1600i Condensing Low-NOx Water Heater

Advanced condensing heat exchangers combined with innovative down firing pre-mix burner technology ensures every cubic metre of natural gas or LPG is utilised to the maximum.

The units are renewables-ready and suitable for use as a temperature booster for solar thermal and heat-pump installations. The HDC1600i is also future-proofed against regulatory and legislative changes.

  • Condensing technology up to 107% efficiency
  • Ultra Low Nox - less than 20 ppm
  • Expansive modulation range 54kW - 4kW
  • High Flow rates - 37 Ltr/min
  • Extended warranty
  • Eco-label ready
  • Rinnai commercial water heaters are available in both Natural Gas and LPG
  • LPG water heaters are delivered to site LPG enabled.

W1600IKBX-NAT : Natural Gas Water Heater
W1600IKBX-LPG : LPG Water Heater


Ancillaries Commercial Brochure HDC1600i Eco Label HDC1600i Product Fiche


Installation Internal
Fuel Natural Gas or LPG*
Temp. Range 40, 42, 50, 55, 60, 65, 75, 85
Nat Gas 58.4kW - 4.05kW
Exhaust type Forced room sealed
Ignition Electronic
Low NOx Less than 20ppm
Height 670mm
Width 470mm
Depth 222mm
Weight 28kg
Water flow rate 1.5** to 37 L/min
Minimum operating pressure 1.0 Bar
Noise level 41 db(A)
Gas 3/4 bsp
Water inlet 3/4 bsp
Water outlet 3/4 bsp
Condensate outlet 3/4 bsp
Electrical Supply 230 AC 50Hz 1ph

* Sperate models available for Natural Gas or LPG Fuel.

** Minimum flow rate based on temperature set point and inlet conditions.

'Less than 20ppm'

Additional Information

Gas Usage 5.6m³/h
Gas usage LPG 4.2kg/hr
Operation Range 4.5kW - 58.4kW

HDC1600i Low-NOx Solar Booster

Flow rateEnergySaving on gas
16l/min @ 40°C Rise 44.7kW 21.25% (1.19m3)
16l/min @ 30°C Rise 33.5kW 40.4% (2.26m3)
16l/min @ 20°C Rise 22.3kW 58.9% (3.33m3)
16l/min @ 10°C Rise 11.2kW 78.4% (4.39m3)

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