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Residential Condensing Boilers

High Efficiency

Navien high efficiency condensing boilers provide whole house heating for small and large homes

Residential boilers from Navien save space and energy.

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NFB-H Series

The most advanced condensing fire tube boilers in the industry, and now with more heating capacity for any size home.

• Good for small & large homes

• Low noise

• Up to 15:1 turndown ratio

• Built-in capability for multiple zones

• Wi-Fi compatible

• Expandable via cascading technology

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NFB-H Series

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NHB Series

Navien NHB boilers offer homeowners industry-leading turndown ratios, longer venting and cascading capabilities for greater installation flexibility, and easy-to-use integrated controls

  • Good for small & large homes
  • Low noise
  • Up to 15:1 turndown ratio
  • Built-in capability for multiple zones
  • Cascade up to 16 units

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NHB Series

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A new energy-efficient take on an old-fashioned system

All Navien NHB and new NFB-H boilers have Navien’s advanced burner system. The industry’s largest turn down ratio means easier installation with multiple zones while maintaining high operational efficiencies.

  • Much more energy-efficient than
    old fashioned boiler systems
  • The highest energy efficiency in the industry
    — up to 95% AFUE
  • Energy Star certified
  • Backed by the industry’s strongest warranty
    — 10 years on heat exchangers
  • Easy to use control panel
  • Longer lasting than traditional
    floor standing boilers
  • Elegant, clean appearance
  • Improves resale value
  • Ideal for replacements or new construction
  • Takes up about 80% less space than
    traditional floor standing boilers


Conventional Boilers Lose Heat
Condensing Boilers Retain It

Save space, energy and reduce greenhouse gasses with Navien high efficiency condensing boilers. Low exhaust gas temperatures allow for more cost-efficient venting, and low noise levels offer flexible installation options for any home.

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    Saves Energy, Good for Environment

    The condensing technology in the stainless steel heat exchangers of the NFB-H and NHB boilers saves energy and reduces green house gasses.

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    Small Footprint

    Both the NFB-H Series and NHB Series boilers have a sleek wall‑hung using

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    Control from Your Phone

    Optional NaviLink™ Wi-Fi control system gives you access to your NHB and NFB-H boiler from anywhere in the world

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    Low Cost Installation

    Low exhaust gas temperatures allow the use of PVC, CPVC, ULC S363, PP, and SS reducing installation time and costs. The system can use 2" venting for up to 60', or up to 150' with 3" venting

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    Low Noise Levels

    Installations in or near media rooms, recreation rooms, or any living areas of the house are possible with these quiet running boilers

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    PreciseTemperature Adjustment

    Turndown ratio up to 15:1 on NHB and 15:1 on NFB-H – The sophisticated gas flow control system provides a high turn down ratio which reduces energy waste and excessive boiler cycling while also enhancing temperature control for DHW


Explore Navien Boilers Applications

Space saving design occupies 80% less space than a traditional floor standing boilers.

  • Baseboard radiators
  • Radiant floor heating systems
  • Fan coils

Protect the Environment as You Heat Your Home

Navien primary condensing stainless steel heat exchangers recover extra heat that would be lost in non-condensing boilers to reduce energy consumption and CO₂ emissions that keeps exhaust temperatures very low. So low that economical Schedule 40 PVC pipe can be used for venting in almost all applications.

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