The Paloma PH28 7.4 gpm gas water heaters are designed as a whole house system for larger homes with 2-3 bathrooms. It comes in models for outdoor, indoor and indoor direct vent installation so is able to suit most applications.
The Paloma PH28 offers two unique safety features not found in many competitive tankless heaters:
1. Oxygen Depletion Sensing; If high levels of carbon Monoxide are sensed, it automatically increases intake air fan speed. If this does not work, then the heater is automatically shut down and an error message displayed.
2. Film type Overheat Sensing; Most competitive units sense overhaeting in only one location, the Paloma PH28 senses over the entife heating chamber.
These compact gas tankless water heaters offers many technically advanced features:
- Paloma’s exclusive sensing burner with ICAD Safety System for monitoring elevated Carbon Monoxide levels, then shutting the system down.
- Low NOx emissions to SCAQMD Rule 1121 requirements
- Waterproof digital remote control
- Optional additional remote controls
- Intelligent electronic controls for increased efficiency & safety
- Self diagnositcs and error display
- Built in electric Blower on all models
- Optional installation as part of circulating water system
- Overheat Limiter
- Stainlass Steel Cat 111 Vent
- DUOnex ready for 2 unit configurations.
The Paloma PH28 7.4 water heaters can be ordered for either Natural Gas or Propane and are ideal for families needing the cost savings of economic water heating.
With Paloma’s technologically advanced design and the ability to upgrade to a duo system, this a hot water heater is ideal for larger homes needing a tankless water heater with the capacity to upgrade if demand increases.

- Electronic Ignition
- Wall Mounting for easy installation
- Temp Range: 100 – 140°F Factory set @ 120°F
- Flow: 0.66 – 7.4 GPM
- Max Flow @ 40°F input 5.2 GPM, @ 60°F input 7.6 GPM
- Minimum Input: 21,600BTU
- Maximum Input: 141,000BTU
- Efficiency: 82%; NG, 84%; LP
- Minimum Recommended Water Pressure (PSI): 14
- Maximum Water Pressure (PSI): 150
- Vent: 4″ Category 111 Stainless Steel for indoor install
- Backdraught prevention included
- Gas Connection: 3/4″
- Water Connections: 3/4″
- Size: 25.38″H x 14.875″W x 11.125″D
Residential Warranty:
12-Year Limited Warranty on Heat Exchanger
5-Year Limited Warranty on Parts
Service Warranty: 1 yr
Check out the specials from a well established company with great prices, reputation and secure online trading . Simply click on the link beside your preferred model in the chart below.
For Paloma PH28 Outdoor Propane: Click here.
For Paloma PH28 Outdoor Nat Gas: Click here.
For Paloma PH28 Indoor Direct Vent Propane: Click here.
For Paloma PH28 Indoor Direct Vent Nat Gas: Click here.
Please note that we do not stock the Indoor model without direct venting, preferring to recommend the Direct Vent model which will ensure there is always enough combustion air for optimum performance.
The Paloma PH28 7.4 gpm water heaters qualify for 2009 Tankless Water Heater Tax Credit































