Harmonic Heating & Air Conditioning is here for you! Call us today when you need heating, air conditioning, water heating, air quality or commercial HVAC services! Harmonic is your local comfort expert!

High-Efficiency Product Lines


Help is Just A Call Away

Harmonic Heating & Air Conditioning is here to take care of all your comfort system maintenance, repair and installation needs! Call us when you need comfort services!

Improve your comfort system's efficiency with these equipment add-ons

Harmonic Heating & Air Conditioningstarstarstarstarstar5.0 / 5

5 stars
84
4 stars
1
3 stars
0
2 stars
0
1 stars
0

85 Total Reviews Harmonic Heating & Air Conditioning


What Harmonic Does for You
Explore Our Maintenance Plans

K2 Condensing Stainless Steel Boiler

A value-priced' high efficiency condensing boiler that is simple enough to install quickly AND offers valuable extras not found on competitive models. U.S. Boiler Company has delivered. The K2 offers a comprehensive feature list' unequalled ease of setup' maintenance' and operation in a package that costs far less than you’d expect for the impressive value that’s built in. And best of all' it’s built and tested with pride in Lancaster' Pennsylvania by U.S. Boiler Company.

  • Reliable' proven stainless steel heat exchanger
  • Factory pre-set Sage2.2™ Control System' providing out-of-the-box high performance
  • 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
  • High capacity pre-installed boiler loop circulator
  • Split-voltage junction box
  • Universal exhaust termination for polypropylene and PVC
  • Outdoor reset and sensor
MODELInput MBtuHOutput MBtuHAFUEDimensions
HxWxD
Water Content
Gal.
Weight
Lbs.
K2-08080.0 74.0 94.0 29x17x16.2 0.00 149
K2-100100.0 92.0 93.0 29x17x16.2 0.00 158
K2-120120.0 111.0 94.0 29x17x16.2 0.00 162
K2-150150.0 141.0 95.0 29x17x20.2 0.00 188
K2-180180.0 167.0 94.0 29x17x20.2 0.00 188

Warranty Information

  • Heat Exchanger for 144 months - Limited 12 Year Warranty
  • All Parts for 36 months - With Prompt Online Registration
  • Limited Labor for 36 months - With Prompt Online Registration

Available Documents