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Modulating Condensing Ultra Low NOx Commercial Gas Water Heater. optiTHERM® is a fuel-saving, long-lasting, minimal maintenance gas commercial water heater engineered and built to offer Lowest Total-Cost Hot Water.

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The OptiTherm offers up to 99% thermal efficiency by modulating fuel input to supply variable domestic hot water demand.

  • 125,000-500,000 BTU
  • Modulating Blue Flame Submerged Burner optimizes thermal efficiency.
  • Automatic ICCP corrosion protection system minimizes maintenance costs eliminates sacrificial anodes.
  • 99, 100 gallon or 125 gallon capacities
  • Natural gas or propane
  • Ultra-robust materials and construction maximize longevity.
  • Ultra-Low NOx emissions are SCAQMD certified.
  • Standard 5-year tank/heat exchanger commercial warranty.
  • Energy-Saving Turbofins conduct more heat into water
  • Robust single-flue design yields a stronger, more durable tank
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