Tankless Water Heaters
Commercial-grade units with the industry's best warranty.

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Super High-Efficiency

Rinnai’s super high-efficiency models offer sleek design, maximum output and an array of features ideal for the hot water demands of large homes.

RUR Model Series

RU Model Series

RUCS Model Series

RUS Model Series

High-Efficiency

For small- to medium-sized new homes or remodels, Rinnai’s high-efficiency models are affordable, compact units you can count on.

RL Model Series

RLX Model Series

V Model Series

Hybrid

Need a replacement? Rinnai's hybrid models are Ultra Low NOx (ULX) compliant, have 82% recovery efficiency and last much longer than a stand-alone tank.

CHS Series

Accessories

control•r™ Smart Technology

Recirculation Accessories

Venting & Accessories
Home Heating
Condensing Boilers

Rinnai Condensing Boilers deliver more efficient home heating than traditional boilers, while also providing domestic hot water.

I Series

M Series

Boiler Venting & Accessories
Direct Vent Furnace

Rinnai Direct Vent Furnaces use modulating technology to create energy-efficient warmth for the whole home.

Direct Vent Furnace Accessories
Vent-Free Fan Convectors

Rinnai Vent-Free Convectors push heat to the farthest reaches of the room, evenly warming larger spaces and maximizing cost-savings.
Hydronic Air Handler

The Rinnai Hydronic Air Handler System easily integrates with select tankless water heaters or boilers to deliver energy-efficient warmth.
Infrared Radiant Heating

Rinnai Infrared Heaters provide you with warm radiant comfort in all of your outdoor, garage and workshop spaces.
New at Rinnai

Q175CN Q-Series Model Series

Q-Series View Energy Guide

Rinnai Q175CN natural gas condensing boiler offers unparalleled comfort and efficiency along with ease of installation and serviceability making it ideal for use in homes or light commercial applications, providing both heat and domestic hot water.

Warranty 12 yr / 2 yr / 1 yr
35,000 BTU / (10.3 kW) (minimum)
175,000 BTU / (51.3 kW) (maximum)

Indoor Only

Specifications Documentation Warranty

Specifications

Manufacturer Trade Model Number - U.S.	Q175CN
Product Depth	15.2 in / (385 mm)
Product Height	31.4 in / (795 mm)
Product Width	39.4 in / (1000 mm)
Product Weight	196 lb / (89 kg)
Gas Type	Natural Gas
Installation Type	Indoor Only
Residential ENERGY STAR®	Yes
Domestic Hot Water Flow Rate (Maximum)	6.2 GPM / (23.5 l/min)
SCAQMD Approved	Ultra Low NOx
Central Heating Capacity	175,000 BTU / (51.3 kW)