Rinnai RE Series 5.3 GPM Indoor NCTWH - LP
The RE Series 5.3 GPM model has a maximum flow rate of 5.3 gallons per minute, making it suitable for households with moderate to high hot water demand. It features a durable stainless steel heat exchanger and a condensing design, which helps to improve its overall efficiency and reduce energy costs.
The unit has a digital control panel that allows for easy temperature control and monitoring of the water heater's performance. It also has various safety features, including a freeze protection system, overheat protection and a leak detection system.
The Rinnai RE Series 5.3 GPM Indoor NCTWH - LP is designed for indoor installation and can be mounted on a wall or floor. It requires a natural gas or propane fuel source and a dedicated venting system. It is available in liquid propane (LP) and natural gas models.
Features
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Clean Internal Layout
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LED Screen
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Safety Handle and Seating Bracket
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Easy Open / Close Access
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Programmable Service Reminders
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Compact Copper Heat Exchanger
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Optional Leak Detection Kit
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Optional Freeze Protection
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Optional Mounting Bracket (Sold Separately)
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140,000 BTUs
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Hot Water Capacity Range:Â Â 0.26 GPM to 5.3 GPM
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0.81 Uniform Energy Factor
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Dimensions:Â Â 14.05" x 22.87" x 10.77"
Specification
| Fuel Type |
Propane |
| Color/Finish |
Silver |
| Indoor/Outdoor |
Indoor |
| Size |
140 |
| Vent Type |
Non-Condensing |
What Our Experts Think
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Efficient Tankless Design: Provides endless hot water only when needed, reducing energy use.
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5.3 GPM Flow Rate: Ideal for apartments or small to medium homes with multiple fixtures.
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LP Gas Powered: Reliable performance with efficient propane fuel consumption.
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Indoor Installation: Compact design saves space and integrates easily into indoor utility areas.
Q&A
Q: What is the maximum flow rate?
A: It delivers up to 5.3 gallons per minute, suitable for multiple simultaneous hot-water applications.
Q: Does it require a venting system?
A: Yes, being an indoor unit, proper venting is required according to manufacturer guidelines.
Q: Is it energy efficient?
A: Absolutely — the tankless design heats water on demand, reducing standby energy loss.
Maintenance Tips
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Flush annually to prevent scale buildup.
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Inspect gas and water connections regularly for leaks.
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Clean exterior and venting components to ensure proper airflow.
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Follow manufacturer service recommendations for long-term performance.
