K2WT-150B-6G-00 U.S. Boiler K2 95% High Efficiency Condensing Boiler

Burnham K2WT-150B-6G-00 Gas Boiler, 95% AFUE, Single Phase, 123, mbh Net IBR , Direct Vent



U.S. Boiler Company


The K2 boiler offers an impressive 95% efficiency across all heating boiler sizes. Having an impressive array of standard features is one thing, doing so at a very favorable price is quite another. The K2 offers all of this, and more, including features like a preinstalled boiler loop circulator which can save money on installation costs!

  • Up to 95% AFUE
  • Reliable, proven stainless steel heat exchanger
  • The Sage2.3 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.
  • Touch screen diagnostic display with plain-language guidance
  • Exclusive features for installer convenience and homeowner dependability
  • High altitude – zero or minimal de-ratings, reduces the costs of oversizing, field adjustable
  • FREE 5-year parts warranty included
  • High capacity pre-installed boiler loop circulator
  • Split-voltage junction box
  • Universal exhaust termination for polypropylene and PVC
  • Outdoor reset and sensor
Products specifications
Attribute nameAttribute value
AFUE Rating95%
Dimensions17 Inch W x 20-3/16 Inch D x 29 Inch H
DOE Heating Capacity141000 BtuH
Fuel TypeNatural Gas
Housing MaterialStainless Steel
Ignition TypeSpark
Input Capacity150000 BtuH
ManufacturerU.S. Boiler Company
Net IBR Rating123000 BTU
Vent TypeDirect