• All Navien NFB and NHB boilers have Navien’s advanced burner system.
    The industry’s largest turndown ratio means easier installation with
    multiple zones while maintaining high operational efficiencies.
  • Much more energy-efficient than old fashioned boiler systems
  • 95% AFUE recognized as Energy Star Most Efficient rating
  • Energy Star certified
  • Backed by the industry’s strongest warranty – 15 years limited on heat exchangers

 

  • Takes up about 80% less space than traditional floor standing boilers
  • Longer lasting than traditional floor standing boilers
  • Easy to use control panel
  • Elegant, clean appearance
  • Improves resale value
  • Ideal for replacements or new construction
  • Rinnai’s line of Condensing Boilers keeps comfort with exceptional performance and efficiency.
  • Our advanced smart system technology even includes an outdoor reset sensor that continually adjusts to changing temperatures.
  • Proprietary self-cleaning stainless steel heat exchanger is backed by a 12-year warranty*
  • OSS (one-side sealed) construction maintains integrity during heat exchanger expansion and contraction
  • E Series boiler pump maximizes performance of boiler to match system requirements
  • A gas-fired condensing boiler is one of the most economical and clean ways to generate heat and can significantly reduce your monthly heating bills, as well as your environmental footprint.
  • Outstanding efficiency of 95% A.F.U.E. on all models.
  • Low-emission combustion with fully modulating Viessmann stainless steel Matrix cylinder burner for natural gas or propane.
  • User-friendly backlit LCD touchscreen boiler control.
  • Lasting performance with proven Viessmann stainless steel Inox-Radial heat exchanger constructed to CSA B51 and ASME Section IV.
  • Extremely quiet operation; quieter than most refrigerators.
  • Built-in on-demand domestic hot water (DHW) with Vitodens 100-W, B1KA Combi boiler. Ideal for apartment units or houses with small mechanical rooms and a single DHW draw point.
  • Up to 94.4% AFUE energy efficiency
  • 80, 120 and Available in 155 Btu/Hr inputs sizes heat-only, or combination space and domestic hot water heating versions
  • Natural or Propane (LP) gas operation – shipped as NG, optional LP conversion kit available
  • Compact design – increases placement options
  • Heavy gauge insulated jacket – provides quiet operation
  • Honeywell control with digital display
  • Peace of mind warranty