K2WT-180, 147,000 BTU Output Watertube High Efficiency Boiler w/ Taco Pump T6 Pro Smart Wi-Fi Programmable Thermostat, 2H/2C – Labor cost included


With an AFUE up to 95%, the K2 condensing boiler does an outstanding job of establishing a balance between high efficiency and high value. This is achieved by mating the proven and reliable performance of a high efficiency heat exchanger with the Sage2.2 control system. The impressive list of high-value standard features that come with the K2 boiler adds to the overall savings that it can provide. The K2 is also wall-mounted, offering a space-saving, low depth profile that is tremendously flexible in tight installation spaces.

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  • Description


  • High efficiency, condensing boiler – Up to 95% AFUE
  • 80 – 180 MBH (5 sizes) and Combi Kit Available
  • ENERGY STAR Certified – Efficiency tax credits/rebates may apply
  • Reliable stainless steel heat exchanger that has been proven in millions of households
  • Sage 2.2 Control System with factory pre-sets to speed installation
  • Touch screen diagnostic display
  • FREE 5-year parts warranty included
  • UNMATCHED High Altitude Performance
  • High capacity pre-installed boiler loop circulator
  • Split-voltage junction box
  • Universal exhaust termination for polypropylene and PVC
  • Outdoor reset and sensor
Efficiency: 95%
IBR Rating: 147000
BTU Output: 147000
DOE Rating: 169000
BTU Input: 180000
Vent Size: 3″
Height (Inches): 35″
System Type: Hydronic (Water)
Fuel Type: Natural Gas


Features: Touchscreen

EI/Spark Ignition


Material: Stainless Steel
Gas Connection: 3/4″
Boiler Type: High Efficiency
Vent Type: PVC

Direct Vent


Warranty: 5 Years Parts