Power Gas Water Heaters

HE Series HI-EFF


High Efficiency GAS

• 70 and 100 Gallon Capacities
• 125,000 – 250,000 BTU/Hr Input
• Up to 96% Efficiency
• Energy Star Certified
• Exceeds SCAQMD & BAAQMD Air Quality Standards
• Magnesium Anode Rods
• Natural or LP Gas
• NON-CFC Foam Insulated
• Vents with 2” PVC pipe up to 65 equivalent feet
(135’ with 3” or 4”)
• Choice of 3 or 5 Year Limited Tank & 1 Year
Component Parts Warranty


HN Series Power Gas


Fire Tube Reliability in a Water Heater Design

The HESCO Model HN Series Vertical Fire Tube Water Heater features the traditional Fire Tube design in the vertical configuration with an under-fired power burner. In addition to the simplicity of the 4-piece design, the Model HN includes many advantages over other vertical configured boilers such as larger water volume and steam chest which reduce cycling and improve overall efficiency, easier sludge cleanout, standard “off-the-shelf” burners, and the proven Fire Tube reliability.

Key Advantages

  • Traditional, proven Fire Tube design
  • Larger water volume
  • Lower pressure drop through the unit
  • Reduced cycling
  • 84% efficiency
  • Easier sludge cleanout
  • Turbulators for maximum heat transfer
  • High efficiency UL Listed Power Flame gas, light oil, or combination burners / Low Nox available with or without FGR
  • Heavy duty / 16 gauge cabinet and flanged steel base provide greater structural strength.
  • UL listing of complete assembly
  • Two Protective lining options (Precision Seal & cement, NSF-61 compliant)



Power Gas Water Heaters- all sizes available in gas/oil combinations.