Navien

Navien NHB-H Series — 55 MBH Condensing Heating Boiler

Name: Navien NHB-H Series — 55 MBH Condensing Heating Boiler
Brand: Navien
SKU: P181

NHB-H series (exact model not established)

Model NHB-H series (exact model not established) · Reference P181

$699.00 USD

Navien NHB-H Series — 55 MBH Condensing Heating Boiler — product photograph

Image 1 of 1Photo & model references

Navien NHB-H Series uses a heating-boiler configuration and a condensing design. Size the system around usable output and the building’s heating demand.

Boiler type: Heating boiler
Source-listed heating rating · source-listed input: 55 MBH
Condensing: Yes
Source-listed fuel · Source-listed alternatives; exact factory fuel configuration to verify: Propane, Natural gas

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Quantity

Up to 10 per item.

Delivery to

Free standard shipping

6–10 business days, including handling

Delivery details

Free 90-day eligible returns

Unused, unassembled and complete for change-of-mind returns; defective-item remedies remain available.

Returns & conditions

Plan the setup

Start with the system requirements.

Navien NHB-H Series uses a heating-boiler configuration and a condensing design. Size the system around usable output and the building’s heating demand.

Heating-boiler configuration
Size the heating setup for the building and plan domestic hot-water needs separately.
55 MBH input
Size the system using usable output and building demand alongside this input rating.
Condensing design
Build the installation around the correct venting, drainage and clearance requirements for this design.
Fuel configuration
Propane and natural gas are source-listed alternatives. The factory fuel configuration and any approved conversion requirements still need confirmation.

Before you choose

Have the system load and required output checked for the actual building.
List the available fuel, vent route and water connections for the installer.
Distinguish a heating boiler from a combi model before planning domestic hot water.

The model details

Specifications

Source-listed facts come from the supplied listing. Manufacturer facts are checked against the exact model. Missing or disputed values are withheld.

Navien NHB-H Series — 55 MBH Condensing Heating Boiler specifications
Specification	Value	Evidence
Brand	Navien	Catalogue
Exact model / series	NHB-H series (exact model not established)	Catalogue
Product reference	P181	Catalogue
Source-listed heating rating · source-listed input	55 MBH	Source-listed
Source-listed fuel · Source-listed alternatives; exact factory fuel configuration to verify	Propane, Natural gas	Source-listed
Boiler type	Heating boiler	Source-listed
Condensing	Yes	Source-listed

Check the configuration

Included components

For package and accessory questions, contact support before ordering.

Contact support to confirm included components before ordering when the package details are not listed.

Keep the reference handy

Manuals & documents

Check the exact model and documentation with support before ordering if a specification or installation requirement is unclear.

A closer look

Product questions

What boiler type and rating does this specify?

This configuration specifies a heating-boiler configuration and a 55 MBH rating.

What is included with this seller’s offer?

Check the listed package details before ordering. Contact support if you need confirmation of a specific battery, charger or accessory; pictured accessories alone do not establish included items.