Rinnai RE Series 6.6 GPM Indoor Tankless Water Heater with Smart-Circ™ & Built-In Pump – Natural Gas
Rinnai RE Series 6.6 GPM Indoor Tankless Water Heater with Smart-Circ™ & Built-In Pump – Natural Gas is backordered and will ship as soon as it is back in stock.
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Price Match Guarantee
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Delivery and Shipping
Delivery and Shipping
Your order processing time is 1 to 2 days. Please note that the cut-off time for order placement is 6 p.m. Orders received after this time will be processed on the following business day.
Your order will arrive within 4 to 7 days on average (free shipping over $200). Shipping for orders under $200 incurs a flat fee of $15. We currently offer shipping only within the continental United States (island deliveries may incur additional costs); international shipping is not available.
Mostly all of our orders are shipped via one of our third-party freight carriers (18-wheeler). If your order has an item that is shipped on a freight carrier, you will be contacted to schedule a curbside delivery time. Please make sure to put the correct phone number at checkout.
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As soon as your order is received on our end, we process it!
Rinnai RE Series 6.6 GPM Indoor Tankless Water Heater with Smart-Ci...
• Authorized Online Dealer
• Free Shipping + No Sales Tax (exclusions may apply)
• We Beat The Lowest Price
• Fast 4-7 Day Delivery
• Manufacturer Warranty Included
• Questions? Call Our Experts: +1 (800) 484-0224
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Description
Description
Upgrade your home with the Rinnai RE Series 6.6 GPM Indoor Tankless Water Heater, engineered with Smart-Circ™ Intelligent Recirculation™ to deliver continuous hot water exactly when you need it. Designed for exceptional efficiency, this advanced non-condensing natural gas model features a built-in pump, intuitive LED display, compact internal copper heat exchanger, and a clean layout for easier servicing.
Perfect for modern households, the RE Series “learns” your hot-water usage patterns and automatically schedules recirculation, ensuring comfort while reducing energy waste. With 160,000 BTU performance, premium safety features, sleek indoor installation, and a space-saving design, this unit is built for reliable daily use.
Key Features:
- Smart-Circ™ Intelligent Recirculation™ learns water-use patterns for igher efficiency
- Built-in recirculation pump for faster hot water delivery
- LED hscreen for quick diagnostics & system monitoring
- Clean, compact internal layout for easier servicing
- Sliding wall mounting bracket for simple installation
- Safety handle & seating bracket for enhanced stability
- Easy open/close access panel
- Programmable service reminders for optimal performance
- Durable copper heat exchanger
- Optional leak detection & freeze protection available
- 160,000 BTUs for high performance
- Hot water flow range: 0.26–6.6 GPM
- 0.81 UEF (Uniform Energy Factor)
- Natural Gas model – Indoor installation
- Recirculation-ready design
- External controller not required
What’s Included![]()
- Rinnai RE Series 6.6 GPM Indoor Tankless Water Heater
- Built-in recirculation pump
- Wall mounting bracket
- Valve kit
- Installation hardware & documentation
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Recommended (Sold Separately):
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Isolation Valve Kit – MIVK-T-LW
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Specifications
| Category | Details |
|---|---|
| Part Number | REP160IN |
| Model Name | Rinnai RE Series Indoor Tankless Water Heater |
| Fuel Type | Natural Gas |
| Flow Rate | 0.26 – 6.6 GPM |
| BTU Rating | 160,000 BTUs |
| Energy Factor (UEF) | 0.81 |
| Recirculation | Smart-Circ™ Intelligent Recirculation™ |
| Pump Included | Yes – Built-In |
| Heat Exchanger Material | Copper |
| Color / Finish | Silver |
| Installation Location | Indoor |
| Vent Type | Non-Condensing |
| Size Rating | 160 |
| Optional Add-Ons | Leak Detection Kit, Freeze Protection |
| Dimensions (W × H × D) | 14.05" × 22.87" × 10.77" |
Care & Maintenance Instructions
- Schedule annual maintenance to ensure optimal performance and lifespan
- Keep the unit clean and dust-free, especially around the air intake
- Check for secure connections and ensure proper ventilation
- Use only Rinnai-approved accessories for servicing
- Flush the system periodically to prevent scale buildup (per water hardness)
- Protect against freezing temperatures with the optional freeze protection kit
- Follow all service reminders displayed on the LED screen
Let customers speak for us
The rugged rock-like exterior blends beautifully into our deck design. The seating for six is spacious, and the 10 therapy jets deliver smooth and relaxing streams. Heats quickly and hides all the mechanicals underneath. Totally exceeded our expectations.
much better than our old open fireplace
We love it! It looks very realistic!
Love the tropical vibes it brings to my backyard. Worth every cent. Fast ship and great service.
Peaceful water sound and super easy to maintain.
Looks great in the living room. It puts out really nice flames.
This massive waterfall made our pool feel like a resort. The roar of that cascade is hypnotizing and the finish looks incredibly lifelike. We chose brown rock and it blends perfectly. Installation needed 3 people, but totally worth it.
Does exactly what it’s supposed to do.
Looks incredible in the backyard. Setup wasn’t hard
We sold our wood unit for this, and haven’t looked back. Easy pilots, no mess, looks great
This grill is a beast! Super high quality.
Works well. Sent in a timely manner. Cheapest online too!
Installation was extremely easy. Came with all the equipment needed!
We wanted something tropical, this fit perfectly!
