Triangle Tube Keystone KW 850 850,000 BTU Input Condensing Water Heater - KW 850

If you're looking for a water heater that is both efficient and reliable, the Triangle Tube Keystone Model KW 850 is an excellent choice.

FEATURES

• High-efficiency condensing water heater capable of producing high volumes of hot water
• High energy efficiency
• Sized for large residential and light commercial applications
• Stainless steel heat exchanger provides 95%-97% thermal efficiency with welded construction (no gaskets)
• Occupies minimal floor space with a compact design
• Cabinet provides easy access to all components
• Large, user-friendly control interface
• Able to modulate the water heater to 20% of full fire with a 5 to 1 turndown ratio
• Zero clearance to combustible surfaces
• Burner site glass
• Manual reset high limit
• On/off service switch
• Accepts external (4-20 mA or 0-10 V with supplemental kit) modulation signal
• Alarm output
• Electronic PID modulating control
• Drain valve
• Temperature and pressure gauge
• Water flow switch
• 125 psi (861 kPa) ASME rated pressure relief valve
• ASME "H" stamp
• 160 psi maximum working pressure
• Sensor for domestic water tank
• Direct spark ignition system
• Vent temperature cutoff feature
• Built-in condensate trap
• Vent and air pipe lengths of up to 100 equivalent feet (each)
• Horizontal vent and air terminals
• Horizontal or vertical direct vent
• Low NOx system - less than 10 ppm NOx
• Pre-mix stainless steel burner
• Sealed combustion chamber
• Up to 8 Keystone water heaters can be joined in a cascade
  • 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.