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Fitch Specialties, LLCstarstarstarstarstar4.7 / 5

224 Total Reviews /files/fitchspecialtieslogo_med.jpg757-986-2840$2481 Box Elder Road, Suffolk VA

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We are your local water heating experts

Demand Duo Commercial Hybrid System

Combining the on-demand' continuous supply technology of the Rinnai C199 tankless with an energy efficient and durable 119-gallon storage tank' the Demand Duo™ provides more water heating capacity than a traditional tank in the first hour. The result: Hot water is available to keep pace with demand from short-period' high-spike draws' to a supply that’s ready to go the distance' day in and day out.

  • Built standard with C199 Commercial Tankless Water Heater
  • Comercial Energy Star certified
  • 96% Thermal Efficiency
  • Approved for high altitude up to 10'200 ft
  • Integrated temperature controller that provides 98°F to 185°F
  • Natural Gas or Liquid Propane
  • Multiple venting options (concentric' two pipe' room air' common vent)
  • Perfect for emergency replacement situations – connection locations similar to most popular high efficiency tanks
MODELInput MBtuHEfficiency EF ratingSound dbDimensions HxWxDWeight lbGallons GPM
CHS199100199.0 96 52 69.3x39.2x28.25 428 119.0

Warranty Information

  • Heat Exchanger for 72 months -
  • for 60 months - Tank
  • All Parts for 60 months -
  • Limited Labor for 12 months -

Available Documents