Triangle Tube Keystone KW 1200 1,200,000 BTU Condensing Water Heater - KW 1200


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KW 1200



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  • High efficiency condensing water heater
  • Electronic PID modulating control with large color touchscreen display
  • Displays holds, alerts, and errors in clear text
  • Complete diagnostics for analog and digital inputs
  • Modulation down to 10% of full fire (10:1 turndown)
  • Sealed combustion chamber
  • Pre-mix stainless steel burner
  • Low NOx - meets 2012 SCAQMD requirement for air quality, 10 ppm NOx
  • Horizontal or vertical direct vent
  • Vent and air pipe lengths of up to 100 equivalent feet (each)
  • Built-in condensate trap
  • Vent temperature cutoff feature
  • Direct spark ignition system
  • 160 psi maximum working pressure
  • Stainless steel heat exchanger with welded construction (no gaskets)
  • ASME “H” stamp
  • 125 psi (861 kPa) ASME Rated pressure relief valve
  • Water flow switch (KW 399 - 850 only)
  • Temperature & pressure gauge
  • Alarm output
  • Accepts external modulation signal (4-20 mA or 0- 10 V with the supplmental kit)
  • On/off service switch
  • Manual reset high limit
  • Burner site glass
  • Built-in cascade function for up to four Keystone water heaters

Keystone Condensing Water Heaters produce high volume hot water with high energy efficiency. These products feature a stainless steel heat exchanger with a thermal efficiency between 95 and 97%. Their compact design minimizes floor space while the cabinet provides easy access to all components. The large user-friendly control interface makes set-up easy. The advanced control modulates the water heater with a 5 to 1 turndown ratio. Up to 8 water heaters can be joined in a cascade while the control features parallel modulation and water heater rotation to maximize efficiency and service life.

Triangle Tube Boiler Installation & Warranty Information

We recommend that the installation of all Triangle Tube Boilers and Water heaters be done by a licensed, trained and qualified technician with the proper knowledge and background.

Should you experience an issue during the installation or the initial startup of the unit, please do not contact the manufacturer. You should have the technician that installed the unit contact either us or the manufacturer. Triangle Tube cannot accept any service or warranty calls from anybody but a licensed technician.

Neither we or Triangle Tube can be held liable for improper installation and operation of any Triangle Tube boiler product purchased from our company. Should a warranty issue arise where parts will need to be replaced, an installation receipt will be required along with your sales receipt. Failure to provide a receipt or invoice may result in the warranty not being honored.

Product Specifications

More Information
Triangle Tube Keystone KW 1200 1,200,000 BTU Condensing Water Heater - KW 1200
Weight (in lbs) 620.000000
Manufacturer Triangle Tube
Heating BTU 1,200,000
Exhaust Pipe 6"
Efficiency 95%
Height 49"
Width 27"
Depth 53"
Warranty 5 year limited warranty on heat exchanger
Resources You will need Adobe® Acrobat® Reader to view PDF documents
Safety Information PROPOSITION 65 WARNING


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