Direct Fired Water Heaters

Keystone Water Heater

Keystone Water Heater

Keystone Water Heater Icon
Keystone Condensing Water Heaters produce high volume hot water in with high energy efficiency.
  • Perfectly sized 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'

Performance Specifications

Water Heater Model Fuel Input MBH Thermal Efficiency % Output MBH Turndown Ratio
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