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
Low Operation Costs
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 Fuel Usage/Emissions
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.
High Performance Engineering
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.
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.
Improve your boiler efficiency while cutting your outside air louver size by 70 to 80% while maintaining an ideal boiler room environment
| 600,000 BTUH|
| Gas pressure,|
| Voltage, 120 V|
| Flow, GPM||10||100|
| Temperature rise, F||20||100|
| Flue length, equiv. Ft.||6||80|
| Air inlet length, equiv. Ft.||0||80|
| Water volume, gals||9.5|
| Flue diameter, in||5"|
| Current, amps||5|
| Cv, GPM @ 1psid||60|
| Boiler HP||16|
| Input MBH||600|
| Output MBH||556|
| Fuel Type||Nat. Gas|
| ASME Design Data Max||100PSI +250°F|
| Negative Flue Pressure||-0.2" W.C.|
| Positive Flue Pressure||0.25" W.C.|
| Height||53 1/8"|
| Length||36 3/4"|
| Width||29 1/2"|
| LBS.||859 lbs|
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.
Use our interactive map of North America to find the sales rep servicing your area.