i Series

With unparalleled performance and reliability, our Gen II i Series tankless water heaters are ideal for highly variable applications using potable hot
water. Each unit is constructed for maximum durability – even in the
most demanding commercial applications.

  • Nearly 200,000 to 250,000 BTU/hr for light commercial applications
  • Decreases capital cost by up to 50% and reduces operational cost up
    to 30% (compared to traditional tank-type systems)
  • Takes up no floor space


i250 Key Features:

Masterless Cascading Eliminate single-point failure with our patented Masterless Cascading technology. If one cascaded unit is offline for servicing, all other units regroup and continue to operate.
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.
Plastic Vent Temperature Overshoot Control Maintains safe stack temperature below the vent’s maximum temperature rating.
Multiple Venting Configurations Include concentric, snorkeling, terminations in different pressure zones and single-pipe vent, smart common venting.
Numerous Levels of Built-in Safety Features Prevent flue from back drafting, including fan speed control and a mechanical damper.
Factory Installed Strainer Units deliver debris-free inlet water to the 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.

Featured Download

Product Catalog

Download our catalog to see our full product range.