Warranty Info
5 Year Limited Warranty & 1 Year Limited Parts Triangle Tube hereby warrants the Keystone Condensing Boiler &/or Keystone Condensing Water Heater when properly registered with our factory at the time of purchase (as set forth below) to be free from defects in material or workmanship. Triangle Tube will repair or, at its option, replace the component part under the conditions explained in paragraph 4 , hereof.
Features and Benefits
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Perfectly sized for large residential and light commercial applications.
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Compact Footprint
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Modulating with 5 to 1 Turndown
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Advanced Cascade Capability
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Building Automation System Interface
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LP Conversion Kit
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PVC, PP, and SS Venting up to 100′
Product/Marketing Literature
Repair Manuals
Product Comparison
Water Heater Model | Fuel | Input MBH | Thermal Efficiency % | Output MBH | Turndown Ratio |
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KW 199 T | Natural Propane | 40 – 199 | 97 | 193 | 5 : 1 |
KW 285 T | Natural Propane | 57 – 285 | 95 | 271 | 5 : 1 |
KW 399 T | Natural Propane | 80 – 399 | 96 | 383 | 5 : 1 |
KW 500 T | Natural Propane | 100 – 500 | 96 | 480 | 5 : 1 |
KW 600 T | Natural Propane | 120 – 600 | 97 | 582 | 5 : 1 |
KW 750 T | Natural Propane | 150 – 750 | 94 | 705 | 5 : 1 |
KW 850 T | Natural Propane | 170 – 850 | 96 | 816 | 5 : 1 |
KW 1000 T | Natural Propane | 100 – 1,000 | 95 | 950 | 10 : 1 |
KW 1200 T | Natural Propane | 120 – 1,200 | 95 | 1140 | 10 : 1 |