Rinnai RE Series 5.3 GPM Indoor Tankless Water Heater – Propane (RE140IP)
- 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 5.3 GPM Indoor Tankless Water Heater – Propane (RE140IP) 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
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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
Upgrade your home’s hot water system with the Rinnai RE Series 5.3 GPM Indoor Propane Tankless Water Heater (RE140IP)—engineered for exceptional energy efficiency, compact installation, and long-lasting performance. Designed by industry leader Rinnai, this unit delivers continuous hot water with advanced safety features, a clean internal layout, and user-friendly controls.
Perfect for smaller homes, apartments, and efficiency applications, the RE Series combines reliable propane heating technology with a copper heat exchanger for optimized durability. With programmable service reminders, an LED display, and multiple optional accessories, the Rinnai RE140IP offers flexibility and performance tailored to your needs.
Key Features:
- 5.3 GPM Hot Water Output – Ideal for small to medium water demand applications.
- Energy Efficient Performance – 0.81 Uniform Energy Factor helps reduce energy costs.
- Compact Copper Heat Exchanger – Ensures durability and faster heat transfer.
- LED Display Panel – Simplifies unit monitoring and adjustments.
- Clean Internal Layout – Improves service access and product longevity.
- Built-In Safety Handle & Seating Bracket – Enhances installer and user safety.
- Programmable Service Reminders – Helps maintain peak performance.
- Optional Accessories Available – Leak detection kit, freeze protection, mounting bracket.
- Propane Powered – Reliable heating with consistent temperature output.
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Indoor Non-Condensing Venting – Designed for interior installation with proper venting.
What’s Included
- Rinnai RE Series RE140IP Indoor Propane Tankless Water Heater
- Safety handle & seating bracket
- Internal LED display
- Installation manual
Required but Sold Separately:
- Isolation Valve MIVK-T-LW
- Optional mounting bracket
- Optional leak detection kit
- Optional freeze protection
Specifications:
| Category | Details |
|---|---|
| Model / Part Number | RE140IP |
| Series | Rinnai RE Series |
| Fuel Type | Propane (LP) |
| Installation | Indoor |
| Venting Type | Non-Condensing |
| Color / Finish | Silver |
| Hot Water Capacity | 0.26 – 5.3 GPM |
| BTU Rating | 140,000 BTUs |
| Uniform Energy Factor (UEF) | 0.81 |
| Overall Dimensions (W × H × D) | 14.05" × 22.87" × 10.77" |
| Heat Exchanger | Compact Copper |
| Screen Type | LED Display |
| Optional Accessories | Leak detection kit, mounting bracket, freeze protection |
| Required Accessory (Sold Separately) | MIVK-T-LW Isolation Valve |
| Size Rating | 140 |
Care & Maintenance Instructions
- Flush the heat exchanger annually to prevent mineral buildup and maintain efficiency.
- Check and clean the inlet water filter every 6 months.
- Inspect venting connections regularly to ensure proper airflow and safe operation.
- Keep the unit area clean and dust-free to support ventilation.
- Use only certified propane supply lines and fittings to maintain safety.
- Schedule servicing per Rinnai’s programmable reminders for optimal performance.
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If installed in cold regions, consider adding the optional freeze protection kit.


