GMG Rinnai Water Heater RE180i – High Efficiency 8.5 GPM Tankless Hot Water Solution
Looking to upgrade your home’s hot water system with a powerful, efficient, and space-saving solution? The GMG Rinnai Water Heater RE180i is the answer. This high-efficiency non-condensing tankless water heater delivers a reliable 8.5 gallons per minute (GPM) of hot water—perfect for medium-sized households needing consistent performance without compromise.
Whether you’re taking back-to-back showers or running multiple fixtures simultaneously, the GMG Rinnai Water Heater RE180i ensures a steady supply of hot water on demand.
Why Choose the GMG Rinnai Water Heater RE180i?
The GMG Rinnai Water Heater is built for indoor residential use and operates on either natural gas or liquid propane. Designed for convenience, performance, and durability, this model is ideal for homes with up to two bathrooms and supports the simultaneous use of 3–4 fixtures.
Key Features & Benefits of GMG Rinnai Water Heater RE180i
- High Flow Rate:
Delivers between 0.13 to 8.5 GPM, making it perfect for low to high demand scenarios—from shaving to multiple showers. - High Efficiency:
With a Uniform Energy Factor (UEF) of 0.82, the RE180i heats water only when needed, saving energy and reducing costs. - Powerful Output:
Heats water using up to 180,000 BTUs, ensuring rapid delivery even during peak demand. - Precise Temperature Control:
Adjustable settings from 98°F to 140°F with a default max of 125°F and optional boost to 140°F. - Compact Indoor Installation:
The GMG Rinnai Water Heater RE180i is designed for indoor use and requires venting using a 3″/5″ concentric system. - Long-Lasting Performance:
Unlike traditional storage tanks, tankless systems like the RE180i avoid sediment buildup and corrosion, extending service life.
Real-Life Efficiency
The GMG Rinnai Water Heater is engineered for real-world demands. Enjoy endless hot water as you and your family shower, do laundry, and wash dishes—all at the same time. Its adaptive flame control adjusts automatically to match hot water demand, helping you save both energy and money.
Benefits of Tankless Technology
Tankless water heaters offer a range of performance and environmental benefits. Here’s what sets the RE180i apart:
- Endless Hot Water – No more cold showers, even in busy households.
- Hot Water On Demand – Instant heat means less water waste and reduced wait times.
- Space-Saving Design – Compact and wall-mounted, freeing up valuable space.
- Ultra Low NOx Emissions – Meets strict air quality standards.
- Optional EZ Connect – Link two units for higher capacity if needed.
- Durable Construction – Built to last, thanks to corrosion-resistant components.
Technical Specifications
| Feature | Details |
|---|---|
| Installation | Indoor Only |
| Fuel Type | Natural Gas (RE180IN) / Propane (RE180IP) |
| BTU Range | 10,400 – 180,000 BTUs |
| Flow Rate | 0.13 – 8.5 GPM |
| Energy Factor (UEF) | 0.82 |
| Temperature Range | 98°F – 140°F |
| Vent Size | 3″/5″ Concentric |
| Water Connection | 3/4″ NPT |
| Electrical | 110–120V, 4 Amps, 10A Breaker |
| Weight | 38.5 lbs |
| Dimensions (inches) | 22.87 H x 14.05 W x 10.77 D |
| Mobile Home Certified | Yes |
| Re-Circulation Pump | No |
Installation Notes
This unit is designed strictly for indoor installations and requires proper venting. For outdoor versions, consider alternate Rinnai models. The GMG Rinnai Water Heater RE180i includes a built-in controller for easy temperature adjustments and supports optional smart connectivity modules for added convenience.
Final Thoughts
If you’re looking for a reliable, energy-efficient, and compact water heating solution, the GMG Rinnai Water Heater is a top choice. From its high GPM rating to smart temperature control and long-lasting design, it’s engineered to deliver comfort and performance for years to come.
Upgrade your home with the GMG Rinnai Water Heater RE180i and experience the difference in tankless technology today.
Reviews
There are no reviews yet.