Rinnai RE Series Smart-Circ™ 6.6 GPM Outdoor Tankless Water Heater, NG
- Authorized Online Dealer
- Free Shipping (exclusions may apply)
- We Beat The Lowest Price
- Fast 4–7 Day Delivery
- Manufacturer Warranty Included
- Questions? Call Our Experts: +1 (800) 484-0224
Rinnai RE Series Smart-Circ™ 6.6 GPM Outdoor Tankless Water Heater, NG is backordered and will ship as soon as it is back in stock.
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Price Match Guarantee
Price Match Guarantee
We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price than us, let us know and we beat the price hands down. We want you to feel confident that you are getting the absolute best price for the product you are ordering.
Our 100% Price Match Guarantee has the following restrictions:
Promotions such as rebates and buy one, get one free offers are not eligible
The website can not be a discounter or auction website (ie; eBay, etc..)
The competitor must be an Authorized Retailer of the item you have purchased
The Price Match Guarantee includes will be calculated based on item price, sales tax, shipping charges
Price Matches Do Not Apply For Exchange Orders, or replacements
Please Note: Some Exclusions May Apply
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.
Upon placing your order, you will receive a confirmation e-mail. This message will confirm your order has been received by our system, and your credit card was approved for purchase. We will not charge your card until the item has shipped unless it's back ordered and we need to hold an item for you.
As soon as your order is received on our end, we process it!
• 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
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
Description
Experience reliable, high-performance hot water on demand with the Rinnai RE Series Smart-Circ™ 6.6 GPM Outdoor Tankless Water Heater. Designed for efficiency, convenience, and durability, this tankless water heater ensures your home always has hot water when you need it, without the wasted energy of traditional storage tanks.
Equipped with Smart-Circ™ technology, the unit intelligently learns your household’s hot water usage patterns and schedules recirculation automatically—no external controller needed. Its compact copper heat exchanger, LED display, and programmable service reminders make maintenance easy while maximizing energy efficiency. The built-in pump and recirculation-ready design provide fast hot water delivery, reducing wait times at every faucet.
Perfect for outdoor installation, this Rinnai model is durable, compact, and designed with safety in mind, featuring a clean internal layout, sliding wall bracket, safety handle, and seating bracket. Whether upgrading an existing system or installing a new one, the RE Series delivers convenience, reliability, and efficiency for modern households.
Key Features:
- Smart-Circ™ Intelligent Recirculation – Learns hot water usage patterns and schedules recirculation automatically; external controller not required.
- Clean Internal Layout – Simplifies maintenance and ensures long-lasting performance.
- LED Screen – Provides clear, easy-to-read information and system status.
- New Sliding Wall Bracket – Simplifies installation and wall mounting.
- Safety Handle and Seating Bracket – Ensures secure handling during maintenance.
- Built-In Recirculation Control & Pump – Recirculation-ready models include a built-in pump for immediate comfort.
- Easy Open/Close Access – Quick maintenance access without complicated disassembly.
- Programmable Service Reminders – Alerts you when routine maintenance is needed.
- Compact Copper Heat Exchanger – Delivers reliable hot water with energy efficiency.
- Optional Kits – Leak Detection and Freeze Protection available.
- High Performance – 160,000 BTUs with hot water capacity from 0.26 GPM to 6.6 GPM.
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Energy Efficiency – Uniform Energy Factor (UEF) of 0.81 ensures energy savings.
What’s Included
- Rinnai RE Series 6.6 GPM Outdoor Tankless Water Heater (NG)
- Built-in Recirculation Pump
- Sliding Wall Mounting Bracket
- Safety Handle and Seating Bracket
- Valve Kit
- User Manual with Installation & Maintenance Instructions
Specifications:
| Feature | Specification |
|---|---|
| Part Number | REP160EN |
| Fuel Type | Natural Gas |
| Hot Water Capacity | 0.26 – 6.6 GPM |
| BTU Rating | 160,000 BTUs |
| Uniform Energy Factor (UEF) | 0.81 |
| Vent Type | Non-Condensing |
| Indoor/Outdoor Use | Outdoor |
| Pump Included | Yes |
| Color/Finish | Silver |
| Dimensions (HxWxD) | 22.87" x 14.05" x 10.77" |
| Recommended Accessories | Isolation Valve Kit – MIVK-T-LW (sold separately) |
| Optional Accessories | Leak Detection Kit, Freeze Protection |
Care & Maintenance Instructions
- Routine Inspection: Check unit and connections monthly for leaks or damage.
- Filter Cleaning: Clean water inlet filter every 6 months to maintain optimal performance.
- Flushing: Flush unit annually with a descaling solution to prevent mineral buildup.
- Recirculation Maintenance: Ensure Smart-Circ™ pump is functioning correctly; check LED status indicators regularly.
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Professional Service: For major servicing, contact a licensed plumber familiar with Rinnai tankless systems.


