Burnham K2-180
Burnham K2-180
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Burnham K2WT-180 - 167K BTU - 94.0% AFUE - Hot Water Gas Boiler - Direct Vent



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Burnham K2WT-180 - 167K BTU - 94.0% AFUE - Hot Water Gas Boiler - Direct Vent
Burnham K2WT-180 - 167K BTU - 94.0% AFUE - Hot Water Gas Boiler - Direct Vent
Model: K2-180
Product Q&A
How-To Articles

Recommended Accessories

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Expert Recommended Accessories Selected by Bob, our Expert
Required Accessories 9
These accessories are required to properly setup/install this product.
Optional Accessories 10


    Burnham continues to be on the forefront of home heating technology. By contantly working to improve the efficiency of their boilers, they are able to pass the savings on directly to the homeowner. The K2-180 is the next model in a history of state of the art, economical machines. The K2 line improves upon Burnham's condenser technology, allowing for optimal heating performance at up to 94% AFUE efficiency. The stainless steel body and included wall mount system allow for easy installation and long-term realiabilty. The K2 line also introduces the Sage2.3 system, providing high efficiency heating right out of the box, as well as an easy to use touch screen interface with intuitive menus and graphs. Burnham has strived to deliver the best, most efficient machines for residential heating, and the K2 continues that mission.
  • Sage2.2 Control System
  • The Sage2.2 system has a simple touchscreen interface built into the boiler. The system provides step-by-step instructions for changing settings and running system diagnostics, making the K2 one of the most user friendly boilers on the market.
  • Built to be Efficient
  • The K2 line is designed to be easy to service, allowing for quick, efficient maintenance. Quicker maintenance combined with ease of installtion keeps initial and year-to-year costs down, saving money over the lifetime of the boiler.
  • Manage Multiple Boilers
  • The K2 boiler can be linked with other boilers, automatically communicating between each other to serve even the largest of spaces and efficiently heat your home. Using smart features, boilers work in tandem to share the load between all boilers.
  • High Altitude Boilers
  • Due to Burnham's condensing technology, the K2 model suffers little to no efficieny loss at higher altitudes. With an easily adjustable option built into the boiler, the the K2 model can work at near maximum efficiency up to 10,000 feet.
  • Multiple Installation Options
  • The K2 model comes with a built-in wall mount allowing for flexibilty in almost any installation situation. The K2's relativley small size and weight allow it to fit in nearly any space.
  • Domestic Hot Water
  • The K2-180 boiler can be adapted to also produce domestic hot water for you home. Using the easy to install K2 Instant Combi Kit (106341-01), the K2-180 can provide up to 4.4 gallons per minute at a 70 degree temperature rise.
  • Product Includes
  • (1) Burnham K2-180 K2 Hot Water Boiler
  • (1) Wall Mounting Kit
  • (1) Universal Exhaust Vent Termination Kit
  • (1) Miscellanous Parts Kit
California residents see
Warning: This product can expose you to chemicals including Chromium (hexavalent compounds) which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov


specs product image PID-58588
General Information
Product Line
Medium Learn More
Hot Water
Fuel Type Learn More
Natural Gas
Combustion Type Learn More
Vent Type Learn More
Direct Vent
DHW Production Learn More
Modulating/Staging Learn More
Mount Type
Minimum Altitude
0 Feet
Maximum Altitude
2000 Feet
Includes Pump
Assembly Type
AFUE Learn More
94 %
Maximum Input Capacity Learn More
180000 BTU
Minimum Input Capacity
18000 BTU
DOE Heating Capacity Learn More
167000 BTU
Net I=B=R Capacity Learn More
148000 BTU
Ultra Low NOx Emissions Learn More
Turndown Ratio
Electrical Data
115 Volts
60 Hz
Flue Connection Size
3 Inches
Supply Connection
1 Inch
Return Connection
1 Inch
Product Height
35 Inches
Product Width
17 Inches
Product Depth
20 3/16 Inches
Shipping Weight
188 Pounds
Country of Origin
United States
Energy Star Listed
ASME Certified
AHRI Certified
AHRI Reference Number
Warranty Information
Parts Warranty Learn More
5 Years


Burnham K2-180 Reviews & Ratings

Product Q&A

Product Questions Answered by Bob, the Heating Product Expert
Can I use the K2 for a radiant heat system in a driveway for snow melting?
from Maryland 
October 19, 2015
Can this boiler be converted to LP?
from West Virginia 
October 05, 2015

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Burnham K2WT-180 - 167K BTU - 94.0% AFUE - Hot Water Gas Boiler - Direct Vent
Burnham K2-180
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