How to Pick the Perfect Boiler
At the heart of every boiler heating system is the boiler itself. It's responsi...
Local Pickup FAQ's
Hover to zoom
1 Of 5
Navien NHB - 150,000 BTU/Hr - Hot Water Boiler - NG - 95% AFUE - Direct Vent - 0 to 10,100 Ft.
Model:
NHB-150
+
Share This Product
Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Required Accessories
9
These accessories are required to properly setup/install this product.
Optional Accessories
10
Features
- (1) Navien NHB-150 Gas-Fired Hot Water Boiler
- (2) 2" Vent Termination Caps
- (1) Air Vent
- (1) Outdoor Reset Sensor
- (1) Watts M330-M1 Pressure Relief Valve
- (1) Liquid Propane Conversion Kit
Navien's technological prowess and dedication to efficiency are on full display in the NHB gas-fired condensing boiler. The NHB-150 was designed to make your home more comfortable while lowering its energy use. To achieve that end, Navien utilizes the combination of a condensing secondary heat exchanger and a modulating gas valve to reduce energy waste while providing steady comfort. The NHB also features an integrated control module for easy access to the boiler's many adjustable functions. Perhaps most impressively, Navien managed to fit all of that power, efficiency, and functionality into a boiler small enough to mount on the wall of a closet or laundry room.
Product Features
World Class Turndown Ratio
The NHB-150 can deliver anywhere from 10,000 to 150,000 BTU of heating, thanks to a modulating gas valve with a 15:1 turndown ratio. This allows it to provide consistent comfort through varying conditions while avoiding short-cycling.
Dual Heat Exchanger Design
Dual stainless steel heat exchangers enable the Navien NHB to wring nearly every BTU of heat from the combustion gases without worrying about damaging effects like corrosion or mineral scaling.
Installation Versatility
The Navien NHB is a flexible heating solution, suited for a variety of applications. It can be easily converted from natural gas to liquid propane and from direct vent to natural draft. Additionally, this unit is equipped to manage low gas pressure gracefully, allowing it to be used with 0.50" or 0.75" gas lines.
Safety First
Navien included six different safety devices in the NHB condensing boiler. Four different components to monitor the ignition and combustion processes and two high limit checks watch the water and exhaust temperatures.
Environmentally Friendly
The Navien NHB can lower your home's utility bills and carbon footprint. It features a metal fiber burner that reduces energy consumption and NOx production.
Custom Control
The integrated controls on the NHB-150 allow installers to adjust many of its functions to fit your home perfectly. Everything from turndown ratio timing to reset curves to DHW and supply water temperature can be tweaked for optimal comfort and efficiency
Product Includes
Specifications
NHB-150
General Information
Product Line
NHB
Medium
Medium
Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.
Hot Water
Fuel Type
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
Natural Gas
Combustion Type
Combustion Type
Condensing appliances use leftover thermal energy from combustion gases to heat water in a secondary heat exchanger, resulting in higher efficiency and lower exhaust temperature.
Condensing
Vent Type
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
Direct Vent
Modulating/Staging
Modulating/Staging
Stages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control. Learn More
Modulating
Mount Type
Wall
Minimum Altitude
0 Feet
Maximum Altitude
10100 Feet
Assembly Type
Packaged
Includes Pump
No
Gas Conversion Kit
Included
Convertible
Yes
Performance
AFUE
AFUE
AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More
95 %
Maximum Input Capacity
Maximum Input Capacity
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
150000 BTU
Minimum Input Capacity
10000 BTU
DOE Heating Capacity
DOE Heating Capacity
Also referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.
138000 BTU
Net I=B=R Capacity
Net I=B=R Capacity
I=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.
120000 BTU
Low NOx Emissions
Low NOx Emissions
NOx is a byproduct of the combustion process, and it's output is regulated in some jurisdictions. Many regulators mirror SCAQMD rules, which regulate air quality for some parts of Southern California. Low NOx appliances emit less than 40 ng/J (nanogram per Joule) of NOx. Learn More
Yes
Electrical Data
Voltage
120 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/4 Inch
Flue Connection Size
2 Inches
Supply Connection
1 Inch
Return Connection
1 Inch
Product Height
24 Inches
Product Width
17 Inches
Product Depth
13 Inches
Product Weight
80 Pounds
Certifications
CSA Listed
Yes
Energy Star Listed
Yes
ASME Certified
Yes
AHRI Certified
Yes
AHRI Reference Number
7501498
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Heat Exchanger Warranty
15 Years
Reviews
Navien NHB-150 Reviews & Ratings
Be the First to Write a Review
Do you own this product?
Please share your insights with fellow shoppers.
Please share your insights with fellow shoppers.
How-To Articles
Five Ways to Improve Boiler Efficiency
When purchasing a new boiler for your home, efficiency is the name of the game....
Hydronic System Accessory Guide
How warm does a coat keep you without gloves and a hat? Accessories are sometim...
eComfort How-To Library
Articles, Tips and Buying Guides from Our Experts
Manuals
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Navien NHB - 150,000 BTU/Hr - Hot Water Boiler - NG - 95% AFUE - Direct Vent - 0 to 10,100 Ft.
Customer Review Images
