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Waiwela-Paloma PH2-25ROFLN Outdoor Natural Gas Tankless Water Heater

by Waiwela
Original price $859.95 - Original price $949.90
Original price
$859.95 - $949.90
Current price $859.95


The PH2-25 is perfect for average homes with 1 or 2 bathrooms.

The PH2-25ROF can support up to 2 to 3 major hot water functions in areas with warm climates. It is not recommended for installation in areas with freezing climates. It is also convertible for commercial use of up to 185°F by simply adding of a hi-temp computer chip.

Except for the label, this heater is identical to the Rheem RTG-84XLN. Paloma has owned Rheem since 1988.


• Low NOx burner
• High altitude capable
• Self diagnostic system
• 0.4 GPM Activation flow rate
• 0.26 GPM Minimum flow rate
• Freeze protection up to -30°F
• Accepts preheated water up to 140°F
• Optional upgrade available for output maximum of 185°F
• Residential & commercial applications
• Connect up to 20 units simultaneously
• Supports both vertical & horizontal venting
• Wired temperature remote control included
• Supplied 120V power cord with indoor direct vent models
• Integrated appliance adapter and condensate drain simplifies venting with indoor direct vent models


• Overheat limit wrap
• Anti-scald protection
• Flame failure monitor
• Temperature controller is adjustable to prevent scalding
• Flame rods ensure proper firing while detecting flame failure
• Resin film surrounding the combustion chamber for overheating detection
• Incomplete Combustion Avoidance Device (ICAD) monitors combustion for unsafe carbon monoxide


• Digital controller
• Endless hot water
• Diagnostic display
• Changes temperature settings precisely and instantly with the touch of a button


Model Number PH2-25ROFLN
Installation Type Outdoor
Gas Type Natural Gas
Minimum BTU/Hour 11,000
Maximum BTU/Hour 180,000
Efficiency % 84%
Energy Factor (EF) 0.82
Minimum Water Flow 0.26 GPM
Activation Flow 0.4
Max Water Flow at 35ºF ∆T 8.4 GPM
Dimensions 25 5/8" High x 13 7/8" Wide x 8 7/8" Deep
Temperature Range ºF 85-140 (185 with Hi-Temp Chip)
Gas Connection 3/4" MNPT
Water Connection 3/4" MNPT
Inlet Gas Pressure (W.C.) Natural Gas: 4.5 - 10.5
Water Pressure PSI 14 - 150
Electrical Requirement 120V / 60 Hz AC / 2 Amps
Power Cord Installed No
Freeze Protection Yes - (-30ºF not including wind chill)
Digital Controller Yes - UMC-117 Main Controller
Electronic Manifold Ready Yes - with optional controller
DUOnex Ready Yes - with optional DUOnex cable
Venting N/A
Max Vent length N/A
High Altitude Capable Yes
Low Nox Compliant Yes
Approvals Energy Star - CSA - GAMA - NSF
Warranty 12 yrs. Heat Exchanger / 5 yrs. Parts / 1 yr. Labor



• 12 Year Warranty on Heat Exchanger
• 5 Year Warranty on Parts
• 1 Year Warranty on Service


• 5 Year Warranty on Heat Exchanger
• 5 Year Warranty on Parts
• 1 Year Warranty on Service


User Manual