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iQ251 Commercial Heater (Wall-Hung)

iQ251 Commercial Heater (Wall-Hung)

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Wall-Hung On-Demand Unit

  • 30,000/251,000 BTU/h (min/max input)
  • Cascade up to 2,510,000 BTU/hr (10 units)
  • Slashes capital costs up to 50%
  • 96% thermal efficiency
  • Operates on very low gas pressure (down to 2.5” WC)
  • Compact and wall-hung
  • Common venting capable
  • ASME-HLW certified
  • Optional iNTouch for BAS connectivity


Intellihot was founded in 2009, after a traditional water heater broke down and flooded the founder’s basement, Intellihot today designs, manufactures and assembles tankless water heaters for residential, commercial and industrial applications – the first to do so entirely in the United States.

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