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HD55i Low-NOx (52.6kW) Commercial Gas Fired Water Heater

HD55i Low-NOx (52.6kW) Commercial Gas Fired Water Heater

Rinnai Heavy Duty 55i Low-NOx Commercial Gas fired Water Heater

The Rinnai HD55i internal water heater is a room sealed, wall hung, LPG or natural gas fired continuous flow water heater. The Infinity Low NOx 55i is capable of supplying in excess of 833 litres per hour raised 50˚C making it an ideal choice for high capacity light commercial to large industrial system specifications as up to 25 units can be cascaded to supply any specification.

The Infinity Low NOx range incorporates patented down firing pre-mix burner technology that ensure the appliances produce less than 20ppm NOx, future proofing the systems against legislative changes.

Rinnai commercial water heaters are available in both Natural Gas and LPG

LPG water heaters are delivered to site LPG enabled.

W55IVCX-NAT : Natural Gas Water Heater
W55IVCX-LPG : LPG Water Heater

*The HD55i water heater is a ideal replacement for the Andrews Water heaters - Andrews Fastflo WH42 also ideal for temporary or emergency hot water.


Ancillaries Commercial Brochure HD55i ERP HD55i Product Fiche



Installation Internal
Fuel Natural Gas or LPG *
Temp. Range 40, 42, 50, 55, 60, 65, 75, 85
Nat Gas 52.6kW - 4.05kW
Exhaust type Forced room sealed
Ignition Electronic
Low NOx Less than 20ppm
Height 583mm
Width 357mm
Depth 233mm
Weight 21kg
Water flow rate 1.5** to 37 L/min
Minimum operating pressure 1-10 Bar
Noise level 67 db(A)
Gas 3/4 bsp
Water inlet 3/4 bsp
Water outlet 3/4 bsp
Electrical Supply 230 AC 50Hz 1ph

* Separate models available for Natural Gas or LPG.

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

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