Keystone Water Heater

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.

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    • Perfectly Sized:

      Ideal For Large Residential And Light Commercial Applications

    • Compact Footprint

    • Modulating With 5 to 1 Turndown

    • Advanced Cascade Capability

    • Building Automation System Interface

    • LP Conversion Kit

    • PVC, PP And SS Venting Up To 100'

    Videos

    Model Comparison Model Comparison

    Keystone Water Heater19928539950060075085010001200

    • Model Number
    • KW 199T
    • KW 285T
    • KW 399T
    • KW 500 T
    • KW 600 T
    • KW 750 T
    • KW 850 T
    • KW 1000 T
    • KW 1200 T

    Performance Specs

    • Fuel
    • NP
    • NP
    • NP
    • NP
    • NP
    • NP
    • NP
    • NP
    • NP
    • Input MBH
    • 40-199
    • 57-285
    • 80-399
    • 100-500
    • 120-600
    • 150-750
    • 170-850
    • 100-1,000
    • 120-1,200
    • Thermal Efficiency %
    • 97.0%
    • 95.0%
    • 96.0%
    • 96.0%
    • 97.0%
    • 94.0%
    • 96.0%
    • 95.0%
    • 95.0%
    • Output MBH
    • 193
    • 271
    • 383
    • 480
    • 582
    • 705
    • 816
    • 950
    • 1140
    • Turndown Ratio
    • 5:1
    • 5:1
    • 5:1
    • 5:1
    • 5:1
    • 5:1
    • 5:1
    • 10:1
    • 10:1

    DocumentsDocuments

    Product / Marketing Literature

    Installation / User Manuals

    Specifications

    • Keystone Water Heater - KW-199 Suggested Specifications
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    • Keystone Water Heater - KW-285 Suggested Specifications
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    • Keystone Water Heater - KW-399-500 Suggested Specifications
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    • Keystone Water Heater - KW-600-750-850 Suggested Specifications
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    Submittals

    • Keystone Water Heater - Engineering Submittal KW-1000-1200
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    • Keystone Water Heater - Engineering Submittal KW-199-850
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    Repair Manuals

    • Keystone Water Heater - Outdoor Temperature Sensor Kit
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    KEYSTONE WATER HEATER

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