Rinnai RE Series 5.3 GPM Outdoor Tankless Water Heater – Natural Gas (RE140EN)
Rinnai RE Series 5.3 GPM Outdoor Tankless Water Heater – Natural Gas (RE140EN) 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.
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!
Rinnai RE Series 5.3 GPM Outdoor Tankless Water Heater – Natural Ga...
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Description
Description
Experience endless, energy-efficient hot water with the Rinnai RE Series 5.3 GPM Outdoor Tankless Water Heater (Natural Gas). Built for durability and performance, this compact yet powerful unit delivers continuous hot water while saving valuable space. Designed with a clean internal layout, LED display, and programmable service reminders, it ensures seamless operation and peace of mind for years to come.
Ideal for outdoor installations, this Rinnai model features a 140,000 BTU copper heat exchanger, optional leak detection and freeze protection, and a non-condensing vent design. Whether for residential or light commercial use, it’s the perfect combination of reliability, innovation, and efficiency.
Key Features:
- Consistent Hot Water Supply: Provides up to 5.3 gallons per minute (GPM) for uninterrupted use.
- Compact Copper Heat Exchanger: Durable, efficient, and space-saving.
- User-Friendly LED Screen: Easy-to-read display with system information and alerts.
- Programmable Service Reminders: Maintain performance with scheduled alerts.
- Optional Freeze Protection: Perfect for colder climates.
- Optional Leak Detection Kit: Add extra protection for peace of mind.
- Safety Handle & Seating Bracket: Enhanced safety and easy access for maintenance.
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Energy Efficient: 0.81 Uniform Energy Factor for optimized gas consumption.
What’s Included
- 1 × Rinnai RE Series 5.3 GPM Outdoor Tankless Water Heater (Natural Gas)
- Mounting Bracket & Hardware
- Owner’s Manual & Installation Guide
- Warranty Information
Note: Isolation Valve MIVK-T-LW required for installation (sold separately).
Specifications:
| Specification | Details |
|---|---|
| Model Number | RE140EN |
| Series | Rinnai RE Series |
| Type | Tankless Water Heater |
| Installation | Outdoor |
| Fuel Type | Natural Gas |
| Color/Finish | Silver |
| BTU Rating | 140,000 BTU |
| Hot Water Capacity | 0.26 – 5.3 GPM |
| Energy Factor (UEF) | 0.81 |
| Vent Type | Non-Condensing |
| Dimensions (W × H × D) | 14.05" × 22.87" × 10.77" |
| Weight | Approx. 35–40 lbs |
| Safety Features | Safety Handle, Leak Detection (optional) |
| Additional Options | Freeze Protection Kit (optional) |
Care & Maintenance Instructions
- Schedule annual professional maintenance for optimal performance.
- Clean the exterior with a soft, damp cloth — avoid harsh chemicals.
- Check for debris or obstructions near air intake/exhaust.
- In cold climates, consider installing optional freeze protection.
- Use only Rinnai-approved accessories and valves for installation.
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!
