iQ Series

Our iQ Series floor-standing units deliver the highest capacity in the industry – up to 3 million BTUs – with no storage tanks required. Designed for very large volume, commercial applications, these high input units slash capital costs by up to 50%, and decrease operational costs by up to 40%, when compared to traditional tank- type systems.

iQ751 delivers approximately 750,000 BTU/hr

iQ751 Key Features:

Eliminate Mixing Valves & Lower Legionella Risks –With no storage tanks, there’s a lower risk for Legionella growth. By eliminating the need for mixing valves, this feature also reduces their associated unreliability and costs.

Competitive Turndown Ratio – –With an industry leading turndown ratio, 25:1 for iQ751, our units provide unparalleled gas savings.

Compact Unit – Featuring a 30” width and a 1025 lb. weight, iQ floor units fit through elevator doors and are ideal where space is at a premium.

Factory Supplied Strainer – Units deliver debris-free inlet water to the system.

Common Venting Capabilities

ASME-HLW Compliant



Ideal for hotels, schools, hospitals, restaurants, laundromats and other commercial applications.



Eliminates the need to oversize an installation with redundant equipment.


Better ROI

Lower capital and operating costs compared to boilers and tank-style water heaters.



Commercial-grade, expandable 316L stainless steel heat exchanger with proven durability.

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