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3"/5" Concentric Venting for PH2-28, PH2-25, PH-20 Direct Vent
4" Venting For PH-28
3" Venting For PH-20

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1. Paloma PH-28R 7.4 GPM Tankless Water Heater
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4. Paloma PH2-28R 7.4 GPM Residential and Commercial Tankless Water Heater
5. Paloma PH2-20R 5.3 GPM Residential and Commercial Tankless Water Heater

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Paloma Tankless Water Heaters at PalomaStore.com :: Tankless Water Heaters :: Paloma PH-28R 7.4 GPM Tankless Water Heater

Paloma PH-28R 7.4 GPM Tankless Water Heater
Paloma PH-28R 7.4 GPM Tankless Water Heater 
Residential Tankless Hot Water Heater

Never Run Out of Hot Water Again
Do you need a Paloma that supports simultaneous showers? Would you like to fill your new whirlpool, take a shower and still have consistent 120°F water for your dishwasher?

Features PH-28R
  • Endless hot water on demand
  • Energy saving design
  • 30% more energy efficient than tank-type water heaters
  • Compact, space-saving design
  • Paloma's exclusive sensing burning and ICAD Safety System to optimize combustion and shut down the unit in case of raised levels of carbon monoxide (indoor models only)
  • Self-diagnostic system
  • Waterproof digital remote control for convenience, comfort, and ease of maintenance
  • Remote control displays adjustable temperature settings
  • Optional, additional remote controls available
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • Exclusive film wrap overheat limiter
  • Indoor model used 4" Category III stainless steel venting material
  • May be installed as part of a circulating water system
  • Built-in electric blower on all models
  • Low NOx emisions meet SCAQMD Rule 1121 requirements
  • Easy expansion with DUOnex™ System
  • Extenisive diagnostics and error display
Residential Warranty
  • 12-Year Limited Warranty on Heat Exchanger
  • 5-Year Limited Warranty on Parts
  • 1-Year Labor

Maximum Hot Water Flow Rate and Temperature Rise

Temperature Rise (°F)

45 50 60 70 80 90 100

Water Flow Rate (GPM)

7.4 6.7 5.6 4.8 4.2 3.7 3.4

Specifications for the Paloma 28R Series
Indoor Model
Outdoor Model
Direct Vent Model
Natural Gas Model Number
LP Gas Model Number
Rated Gas Input
19,000-199,900 BTUs/hr. Modulating
14-7/8" W x 25-3/8" H x 11-1/8"D
Empty Net Weight
55 lbs.
Working Water Pressure
14 PSI - 150 PSI
Water Flow Rate
0.66 GPM - 7.4 GPM
Gas Connection
3/4" NPT Female (With Included Gas Shutoff Valve)
Water Connection
3/4" NPT Male
Vent Size
4" Special Venting
2 x 4" Special Venting Plus Special Terminator
Efficiency Rating
Energy Factor
Electrical Rating
120 VAC/60 Hz, Less than 2 Amps

  • Factory-set maximum temperature is 120°F (Maximum temperature is 140°F with optional UMC-117 Main Control)
  • For installations above 3,280 feet the connector to the PC board must be replaced



Weight 60.00 lbs
Price: $899.00

Water Heater Type
Gas Type

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