- 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