KN family of boilers: KN-6

Innovation sized to meet the low fuel use, low installed cost, small footprint demands of today's condensing commercial boiler market.

The KN-Series boiler from HydroTherm is the first commercial boiler to realize condensing efficiencies using a cast iron heat exchanger. The result is a boiler family that combines the condition-tolerant and heat-retaining characteristics of cast iron with the fuel savings of full modulation condensing performance.

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Low Installation Cost
  • Factory piped & wired packaged boiler in a compact footprint; capable of being rigged via pallet jack through a standard doorway.
  • Single field adjustment required: zero governor gas valve controls CO2 by a simple metric allen key setting.
  • Variable water flow heat exchanger accepts up to 10:1 range, minimizing piping costs.
  • Venting runs of up to 80 equivalent feet each, exhaust and air intake.
Low Operation Costs
  • Unrivaled heat retention: high mass cast iron heat exchanger with 5x the the wall thickness or copper holds heat energy longer.
  • State of the art HeatNet integral control provides user-friendly Multi-function monitoring of all boiler operations with intuitive diagnostics and easy to read text displays.
  • Down-fire design offers easy accessibility to all components for annual service and maintenance.
Low Fuel Usage/Emissions
  • 88% combustion efficiency a full input. 99% combustion efficiency at minimum input (5:1 turndown).
  • Optimal fuel utilization and boiler performance thru integral HeatNet control module.
  • Low NOx and CO2 emissions - Reduces greenhouse gases.
  • Meets South Coast Air Quality Management Division (SCAQMD) Rule 1146.2 standards.
High Performance Engineering
  • Made in the USA
  • Ultra efficient Tru-Flow symmetric air/fuel coupling design burns clean while insuring proper combustion at all firing rates.
  • 5:1 continuous modulation for maximum efficiencies at all levels of heat demand.
  • Proven 8,000 btu pilot or "mini burner" with interrupted spark ignition and air-cooled UV sensor for enhanced reliability.
  • Low pressure drop thru the boiler does not require high velocities and allows good flow-balancing thru multiple boiler configurations with reverse-return piping.
The KN-6 boiler provides high capacity, commercial heating
KN-6
Quick Specs
      600,000 BTUH
NominalMinMax
   Gas pressure,
   inches W.C.		7214
   Voltage, 120 V
   1ph 60hz		120102132
   Flow, GPM10100
   Temperature rise, F20100
   Flue length, equiv. Ft.680
   Air inlet length, equiv. Ft.080
   Water volume, gals9.5
   Flue diameter, in5"
   Current, amps5
   Cv, GPM @ 1psid60
   Boiler HP16
   Input MBH600
   Output MBH556
   Fuel TypeNat. Gas
   ASME Design Data Max100PSI +250°F
   Negative Flue Pressure-0.2" W.C.
   Positive Flue Pressure0.25" W.C.
   Height53 1/8"
   Length36 3/4"
   Width29 1/2"
   LBS.859 lbs
Combustion Air System Improve your boiler efficiency while cutting your outside air louver size by 70 to 80% while maintaining an ideal boiler room environment

HeatNet Intelligent Boiler Controls

HeatNet Modular Boiler Controls

INTUITIVE and INTELLIGENT
The HeatNet integrated boiler control built into every KN can connect up to 16 units using only a standard Ethernet cable: truly plug and play, with no external wall-mounted controls. View>>

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