Rheem Model GT-199XN Outdoor Natural Gas Heavy Duty Tankless Water Heater

Rheem Model GT-199XN Outdoor Natural Gas Heavy Duty Tankless Water Heater

7.4 gpm at a 45°F temperature rise (up to 8.5 gpm at 35°F)
Electronic ignition increases efficiency (no standing pilot light)
Exclusive! Guardian OFW™ overheat film wrap
A remote control thermostat is included with all models with 100°F - 180°F setpoint range (factory set at 120°F)
Digital display on thermostat shows temperature setting and maintenance/error codes
Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements
Built-in electric blower to force exhaust gas to the outside
Must be hardwired to a circuit breaker
Features freeze protection to -30°F
EZ-Link™ cable connects two like units to operate as one, doubling capacity – now available for high demand applications (cable not included)
Proper gas pressure must be ensured to supply tankless gas water heaters - up to 199,900 BTU
High altitude chip is required for installation above 3,280 ft (chip not included w/ unit)

Specifications

Gas Input BTU / Hr.19,000 - 199,900
Temp. Range100° - 180°F
IgnitionElectronic
Activation.66 GPM
Water Connection3/4"
Gas Connection3/4"
Vent DiameterN/A
Energy Factor0.82
D.O.E. Annual Operating Cost$167
Flow Rate at 35°F Rise8.5 GPM
Flow Rate at 45°F Rise7.4 GPM
Flow Rate at 50°F Rise6.6 GPM
Flow Rate at 60°F Rise5.5 GPM
Flow Rate at 70°F Rise4.7 GPM
Flow Rate at 77°F Rise4.3 GPM
Flow Rate at 80°F Rise4.1 GPM
Flow Rate at 90°F Rise3.7 GPM
Flow Rate at 100°F Rise3.3 GPM
Flow Rate at 110°F Rise3.0 GPM
Flow Rate at 120°F Rise2.8 GPM
Flow Rate at 130°F Rise2.6 GPM
Flow Rate at 140°F Rise2.4 GPM
Minimum Clearance - Top12"

-Inlet Gas Pressure designed to operate at 4” w.c. natural gas (8” w.c. liquid propane) & must not exceed 10.5” w.c. for natural gas (14” w.c. for liquid propane)
-Maximum Venting Length: 47.6 ft. (10.5m) including one 90° elbow (Including two 90&