Apply to be a TradeMaster!
Main product image of KS600 572,000 BTU Output Keystone Condensing Boiler
Magnifying glass
Hover image to zoom

KS600 572,000 BTU Output Keystone Condensing Boiler

SKU:
KS600
Rating:
(0)
Q&A:
(0)
KS600 572,000 BTU Output Keystone Condensing Boiler
Magnifying glass
Hover image to zoom
KS600 has been discontinued
Discontinued August 17, 2023
This product was discontinued by the manufacturer.

Product Highlights

–
Product Highlight: Fuel Type
Propane, Natural Gas
Product Highlight: Vent Type
Direct Vent
Product Highlight: System Type
Hydronic (Water)
Product Highlight: BTU Input
600000 BTUs
Product Highlight: Height (Inches)
38" Height
Product Highlight: Width (Inches)
24-1/2" Width

Description

–
Heating equipment must be installed, commissioned, and serviced by a licensed and qualified professional in accordance with manufacturer instructions, applicable codes, and industry standards. Manufacturers do not accept warranty or technical support requests from homeowners or unlicensed individuals. All warranty and technical inquiries must be initiated by the licensed professional responsible for the installation.

The Triangle Tube brand has been discontinued by the manufacturer as of 11/3/2025. Suggested replacement units will be available on our website and replacement parts will continue to be available as supplies last. If you'd like any further assistance, please contact our customer service team.



Note: Product Title reflects this boiler's DOE Output Rating

Triangle Tube's Keystone Series Condensing Boilers are designed for large residential and light commercial applications. The stainless steel heat exchanger and burner provides high efficiency, low emissions, and a high turndown to minimize short cycling. With maximum inputs of 850 MBH for boilers and 500 MBH for water heaters, the Keystone series can meet most needs with a single unit. For larger requirements the advanced control allows units to be joined and function with parallel modulation for maximum efficiency.

Features:

  • Energy efficient with 95% to 97% Thermal Efficiency
  • Stainless Steel Heat Exchanger
  • CSD-1 Standard on 500 to 850 MBH Boilers
  • Integrated Cascade
  • Multiple pump control and thermostat inputs
  • 5 to 1 Turndown
  • 75 psi Pressure Relief Valve on Keystone Boilers

  • Specs

    –
    Fuel Type:

    Propane

    Natural Gas

    Efficiency:

    95.3%

    System Type:

    Hydronic (Water)

    Vent Type:

    Direct Vent

    Gas Connection:

    1"

    Features:

    Condensing

    EI/Spark Ignition

    Water Connection:

    1-1/2"

    Air Intake:

    4"

    Vent Diameter:

    4"

    BTU Input:

    600000

    DOE Rating:

    572000

    Combustion Efficiency:

    96

    Height (Inches):

    38"

    Width (Inches):

    24-1/2"

    Depth (Inches):

    38"

    Contact

    Help Face
    CALL US
    Question? Call or text 888-757-4774
    +
    Need help calculating?
    Use Our Calculator

    You May Also Need

    Box

    KS 600

    Replacement Parts

    SKU: KS600

    Brand: Triangle Tube

    Search Parts:
    SEARCH PARTS
    Product Image of no image
    Front Panel Assembly
    KSR102
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Front Panel Handle
    KSR103
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Rear Panel
    KSR104
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Left Side Panel
    KSR107
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Right Side Panel
    KSR112
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Left Top Panel
    KSR119
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Middle Left Top Panel
    KSR126
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Right Top Panel
    KSR135
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Jacket Angle Bracket, Right Hand
    KSR140
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Jacket Support, Left Stanchion
    KSR144
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Jacket Support, Rt. Stanchion
    KSR145
    Sorry, we don't currently sell this item. Request This Item
    Product Image of no image
    Front Bezel
    KSR146
    Sorry, we don't currently sell this item. Request This Item
    Help Image
    Need help finding a replacement part?
    Fill out the part request form and someone will get back to you shortly.
    PART REQUEST FORM