Water Tube - Single Coil (444 S.S.) Condensing Tankless Water Heater
"Coil around the Burner"
Minimizes pressure drop with spiral structure, Two Weld Points
15:1 Turn Down Ratio
Self-Calibration - No need for Combustion Analyzer
 
Domestic Hot Water: Modulating 13,300-199,000 btu/h
Flow Rate: 5.1 gpm - 11.2 gpm (dependent on temp rise)
UEF 0.96 (Natural Gas/Propane)
Reserve Tank 1.7 Gallons
1/2 Gallon SS Buffer Tank
Total 2.3 gallons
 
Dimensions: 18.1" x 27.6" x 14.2"
Installation: Indoor Wall-Mount, Floor Standing or Outdoor area dependent
Venting: Forced draft direct vent
Ignition: Electronic
Water Pressure DHW: 15 - 150 psi
TEMPERATURE RANGE
Domestic Hot Water:
98°f - 140°f  Residential
180°f Commercial (up to)
 
CONNECTIONS
TOP or BOTTOM 
Cold Water Inlet: 3/4" NPT
Hot Water Outlet: 3/4" NPT
Recirculation Water Inlet: 3/4" NPT
(Built-In 3 speed stainless steel recirculation pump)
Gas Inlet: 3/4" NPT
 
POWER SUPPLY
Main Supply: 120v ac, 60hz / Use less than 5 amp
 
MATERIALS
Primary Heat Exchanger: Stainless Steel Grade 444
 
VENTING
Exhaust: 2" or 3" PVC, CPVC, Polypropylene 2" or 3" Special gas vent type BH (Class II A/B/C)
Vent Clearances: 0" to combustibles
 
SAFETY DEVICES
Built-In Freeze Protection
Water Leak Detection Sensor
Flame Rod
APS
Overheat prevent
Freeze protection device
Exhaust temperature high limit sensor
Power Surge Fuse
 
Warranty Can be found here: Warranty