Lochinvar – Knight Fire Tube Gas Boilers

lochinvar boilers

KNIGHT FIRE TUBE BOILER

Consistency in features and benefits across the KNIGHT Fire Tube Boiler family makes it easier to install and service no matter what model you choose.

Recent upgrades keep KNIGHT at the head of the class, allowing it to continue to lead the charge as the industry-leading high-efficiency residential boiler. Available in 13 models and more adjustable parameters than any other competitor, KNIGHT is the most flexible residential boiler you can install.

  1. Universal Vent Connectors
    Allows for easy installation of multiple vent materials.
  2. Fire-Tube Heat Exchanger
    Low pressure drop saves on pump operation costs and provides installation flexibility, while stainless steel fights corrosion.
  3. ECM Variable Pump
    ECM pump technology saves electricity and lowers operating costs. Variable speed pump is now standard equipment on all WHB and KHB boilers.
  4. 10:1 Modulation Turndown
    Saves money on fuel costs.
  5. Electrical Outlet
    Comes with a built-in 110V AC convenience plug. Use this handy standard feature to power your lighting or installation equipment—or for powering the condensate pump.
  6. Loch-N-Link® USB Programming
    Allows for saving of parameters onto a USB drive for use at a different job site.
  7. Installation Flexibility
    Top and bottom water connection for the WHB. Top and left side utility connections for the KHB for easy retrofitting, such as a cast iron efficiency upgrade.
Model Number Max Input (MBH) Min Input (MBH) *AFUE % Heating Capacity MBH Net AHRI MBH A B C D E F G H I J K Gas Conn. Water Conn. Air Inlet Vent Size Ship. Wt.
KHB055N 55 8.3 95 51 44 3-1/2″ 13-1/4″ 6″ 2-3/4″ 37-2/3″ 13-1/2″ 8-1/3″ 10-1/2″ 15″ 32-1/2″ 8-1/3″ 1/2″ 1″ 2″ 2″ 160
KHB085N 85 8.5 95 79 69 3-1/2″ 13-1/4″ 6″ 2-3/4″ 37-2/3″ 13-1/2″ 8-1/3″ 10-1/2″ 15″ 32-1/2″ 8-1/3″ 1/2″ 1″ 2″ 2″ 165
KHB110N 110 11 95 102 89 2-3/4″ 14-3/4″ 7-1/2″ 2-3/4″ 38″ 14-1/3″ 9-3/4″ 10-1/2″ 15″ 33″ 8-1/3″ 1/2″ 1″ 3″ 3″ 170
KHB155N 155 15.5 95 144 125 2-3/4″ 14-3/4″ 7-1/2″ 2-1/2″ 38″ 14-1/3″ 9-3/4″ 10-1/2″ 15″ 33″ 8-1/3″ 1/2″ 1″ 3″ 3″ 175
KHB199N 199.9 19.9 95 185 161 3″ 15-1/2″ 7-1/2″ 2-1/2″ 38-1/3″ 14-1/3″ 10-1/2″ 11-1/2″ 15″ 33″ 8-1/3″ 1/2″ 1-1/4″ 3″ 3″ 195
KHB285N 285 28.5 95 264 229 3″ 15-1/2″ 7-1/2″ 2-1/2″ 38-1/3″ 14-1/3″ 10-1/2″ 11-1/2″ 15″ 33″ 8-1/3″ 1/2″ 1-1/4″ 3″ 3″ 205