Rinnai RE Series 8.5 GPM Indoor Tankless Water Heater – Natural Gas | RE180IN
- 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 8.5 GPM Indoor Tankless Water Heater – Natural Gas | RE180IN is backordered and will ship as soon as it is back in stock.
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Price Match Guarantee
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.
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Rinnai RE Series 8.5 GPM Indoor Tankless Water Heater – Natural Gas...
• 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 Powerful Efficiency with Rinnai RE Series 8.5 GPM Indoor Tankless Water Heater
Bring instant, reliable, and energy-efficient hot water to your home with the Rinnai RE180IN Indoor Tankless Water Heater. Engineered with a compact copper heat exchanger and a sleek silver finish, this advanced model delivers 8.5 gallons per minute (GPM) of continuous hot water — ideal for large households and high-demand applications.
Designed to replace the Rinnai V75IN, this non-condensing tankless unit offers premium performance, easy installation, and long-term reliability. Its LED display, programmable service reminders, and optional leak detection system make maintenance effortless. Enjoy endless comfort and lower utility bills with this modern water heating solution from Rinnai, a global leader in hot water innovation.
Key Features:
- High Performance: Provides up to 8.5 GPM for multiple fixtures simultaneously.
- Efficient Heating: Powered by 180,000 BTUs with a 0.82 Uniform Energy Factor.
- Smart Functionality: Built-in LED screen with programmable service reminders.
- Compact Design: Clean internal layout and easy open/close access for service.
- Optional Safety Add-ons: Supports leak detection kit, freeze protection, and mounting bracket (sold separately).
- Durable Build: Copper heat exchanger for reliable and long-lasting operation.
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Eco-Friendly: Designed to save energy and reduce water waste.
What’s Included
- Rinnai RE Series 8.5 GPM Indoor Tankless Water Heater (Model RE180IN)
- Safety handle and seating bracket
- User manual and installation guide
(Isolation Valve MIVK-T-LW and optional accessories sold separately.)
Specifications:
| Specification | Details |
|---|---|
| Brand | Rinnai |
| Model | RE180IN |
| Series | RE Series |
| Type | Indoor Tankless Water Heater |
| Fuel Type | Natural Gas |
| Venting Type | Non-Condensing |
| Hot Water Capacity | 0.13 – 8.5 GPM |
| BTU Rating | 180,000 BTU |
| Uniform Energy Factor (UEF) | 0.82 |
| Finish/Color | Silver |
| Dimensions (W × H × D) | 14.05" × 22.87" × 10.77" |
| Installation Type | Indoor Wall-Mount |
| Replacement For | Rinnai V75IN |
| Optional Accessories | Leak Detection Kit, Freeze Protection, Mounting Bracket |
| Required Accessory | Isolation Valve MIVK-T-LW (Sold Separately) |
Care & Maintenance Instructions
- Schedule annual professional maintenance to ensure peak performance.
- Periodically flush the heat exchanger to prevent mineral buildup.
- Clean air filters and inspect venting for obstructions.
- Use only Rinnai-approved accessories and parts.
- Protect the unit from freezing conditions using Rinnai’s optional freeze protection kit
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
This grill is a beast! Super high quality.
We sold our wood unit for this, and haven’t looked back. Easy pilots, no mess, looks great
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!
