iQ Series

The iQ Series delivers the ultimate in on-demand water-heating capacity.

Under the Hood of Our iQ Series Water Heaters

Intellihot has created a revolutionary heat exchanger after years of research that is the best in the industry. At the heart of our iQ Series heat engine is a single finned stainless coil designed to float freely. This unique feature allows for rapid thermal cycles by allowing the coil to expand or contract. Coldwater enters the coil at the bottom and is carefully heated to the correct temperature before emerging at the top, ready for use. The modulating premix burner fires radially outwards to precisely match the load. By condensing the flue gas, we’re able to absorb 12% more heat than in other models. The condensate flows downwards in the same direction as the flue gas, preventing any gas side fouling. Flue gases move downwards to the bottom, casting while water flows in the opposite direction, collecting maximum heat along the way. Using our patented vibration and turbulent flow technology, our iQ Series heat exchangers possess the unique ability to be “self-descaling,” keeping limescale in suspension and ensuring years of like-new operation. These features and many others can be found in our line of Intelligent water heaters – only from Intellihot.

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Masterless Cascading Ensures Zero Downtime

All of our commercial hybrid water heaters can be cascaded for increased capacity. And yet, each one operates autonomously. This means cascaded units do not require a master controller (the kind that causes a single-point failure).

With Intellihot’s patented design, each iQ Series unit has enough internal intelligence to perform independently. In fact, if anyone unit needs to be checked or serviced, the cascade will continue to function smoothly to ensure continuous hot water.

We have six iQ Series models: iQ3001, which delivers 3 million BTUs, iQ2001, which delivers 2 million BTUs, iQ1501, which delivers 1.5 million BTUs, iQ1001, which delivers 1 million BTUs, iQ751, which delivers 751,000 BTUs, and iQ251, which delivers 251,000 BTUs.


Floor Standing Unit


Floor Standing Unit



Floor Standing Unit


Floor Standing Unit


Floor Standing Unit

Deionized water heater


On-Demand Unit



iNTouch Building Management System


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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Get a quote, or request additional iQ Series product information from Intellihot.