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Navien NHB-80 Boiler

(418 customer reviews)

  • Max Input: 80,000 BTU/H
  • Indoor wall-hung
  • Residential/Commercial
  • Super condensing efficiency
  • Dual stainless steel heat exchangers
  • SCH40, 2″ PVC venting up to 60′
  • ½” Gas pipe up to 24′
  • TDR up to [tdr]
  • Integrated controls
Categories: , Tag:

As the leader in condensing technology, Navien has already reinvented the water heating industry with the award-winning NPE tankless water heaters and the NCB combi-boilers. The new NHB boiler series is the next in line of innovations from Navien. All NHB boilers have Navien’s advanced burner system, an industry-leading AFUE of 95% and turn down ratios up to 15:1.

Now available in four sizes NHB 55, NHB 80, NHB 110 and NHB 150.

Navien NHB-80 Boiler Brochure

Navien NHB-80 Boiler Manual

Navien NHB-80 Boiler Spec Sheet

NHB Series Condensing Heating Boilers

Item Nhb nv
NHB-80
Summary
  • Super condensing efficiency
  • Dual stainless steel heat exchangers
  • SCH40, 2″ PVC venting up to 60′
  • ½” Gas pipe up to 24′
  • TDR up to 10:1
  • Integrated controls
Dimensions 17.0″ W x 24.0″ H x 12.0″ D
Weight 73lbs (33kg)
Installation Type Indoor wall-hung
Venting Type Forced draft direct vent
Ignition Electronic ignition
Natural gas supply pressure (from source) 3.5″ WC to 10.5″ WC
Propane gas supply pressure (from source) 8″ WC to 13″ WC
Natural gas manifold pressure (min-max) -0.03″ WC
Propane gas manifold pressure (min-max) -0.03″ WC
Connection Sizes Gas inlet 3/4″ NPT (female)
Power Supply Main supply 120V AC, 60Hz
Maximum power consumption Less than 10A
Materials Casing Cold rolled carbon steel
Heat exchangers Primary and secondary heat exchangers: stainless steel
Venting Exhaust 2″ or 3″ PVC, CPVC, approved polypropylene (see installation manual for more details) 2″ or 3″ special gas vent type BH (Class III, A/B/C)
Intake 2″ or 3″ PVC, CPVC, polypropylene 2″ or 3″ special gas vent type BH (Class III, A/B/C)
Vent clearances 0″ to combustibles
Safety Devices Flame rod, APS, gas valve operation detector, ignition operation detector, water temperature high limit switch, exhaust temperature high limit sensor
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418 reviews for Navien NHB-80 Boiler

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NHB Integrated control

NHB Integrated control
The integrated control provides industry-leading options and features in the boiler operation parameters, including:

  • Adjustable heat caNHB Integrated controlpacity.
  • A timed hydronic supply water boost feature.
  • Adjustable anti-cycle timer.
  • Freeze protection.
  • Pressure LWCO with manual reset.
  • Adjustable minimum burner time setting.
  • Adjustable turn down ratio timing.
  • Outdoor reset and domestic hot water priority.
  • Adjustable outdoor temperature reset curves.
  • Field gas convertible.

Manifold Kits

Manifold Kits

Navien’s Manifold kits are ideal for hydronic space heating applications. With these manifolds, we have done the piping work for you. Both primary and secondary loop manifold kits are designed to work on all NHB models for fast and clean installations. All you need to add is your own appropriately sized pump

Unit

Navien’s two largest condensing boilers, NHB-110 and NHB-150, can be cascaded and common vented
With our cascading technology, when a unit gets up to 80% capacity determined by the supply and return temperatures, the next unit will enable to help meet the hydronic space heating requirements.

This hydronic space heating requirement and demand ratio will continue until all units are generating the needed hydronic space heat up to the maximum cascaded capacity. The Navien cascading system also balances out the workload of each unit for longer life. The NHB is dual certified for single and 2-pipe venting applications.

Optional Wi-Fi remote control

Optional Wi-Fi remote control system
NaviLink makes it easy to communicate with your Navien systems anywhere internet service is accessible. The NaviLink module attaches easily to any new or existing* Navien NPE Series tankless water heater, NCB-E Series combi‐boiler and NHB Series boiler.

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