Rinnai I-Series 150,000 BTU Combi Condensing Gas Boiler – Natural Gas
- 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 I-Series 150,000 BTU Combi Condensing Gas Boiler – Natural Gas 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
Upgrade your home’s heating system with the Rinnai I-Series 150,000 BTU Combi Condensing Gas Boiler – Natural Gas, a top-tier, high-efficiency solution engineered for superior comfort and performance. Designed for both residential and light commercial applications, this wall-mounted unit delivers exceptional heat output and hot water on demand — all with a sleek, compact design that saves valuable space.
With a 95% AFUE efficiency rating, advanced condensing technology, and user-friendly controls, the Rinnai I-Series ensures consistent comfort and cost savings. Whether you’re replacing an old boiler or installing new, this combi unit provides reliable, eco-friendly heating built to last.
Key Features:
- High Efficiency (95% AFUE): Maximizes heat output while minimizing energy costs.
- Compact Wall-Mounted Design: Saves space and simplifies installation.
- Combi Function: Provides both home heating and domestic hot water.
- User-Friendly Controls: Simple interface for easy adjustments and diagnostics.
- Indirect Tank Compatible: Flexible installation options for various needs.
- Durable Construction: Built with premium materials for long-lasting performance.
- Quiet Operation: Engineered for silent, smooth functionality.
- LP Conversion Kit Included: Easily switch from natural gas to propane if needed.
- 5.1 GPM Hot Water Flow Rate: Ensures reliable and continuous hot water supply.
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Service-Friendly Access: Designed for easy maintenance and inspection.
What’s Included
- Rinnai I-Series 150,000 BTU Combi Condensing Gas Boiler (Natural Gas)
- LP Conversion Kit
- User Manual & Installation Guide
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(Primary/Secondary Heating Kit sold separately)
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Specification
| Specification | Details |
|---|---|
| Brand | Rinnai |
| Model Number | IP150199C |
| Fuel Type | Natural Gas |
| BTU Rating | 150,000 BTU |
| AFUE Efficiency | 95% |
| Boiler Type | Combi Condensing |
| Heating Type | Heat Only |
| Control Type | Electronic / IPI |
| Vent Type | Condensing |
| Flow Rate | 5.1 GPM |
| Color / Finish | Silver |
| Mount Type | Wall-Mounted |
| Dimensions (H × W × D) | 26.4" × 18.5" × 11.45" |
| Weight | 76 lbs |
| Shipping Weight | 76 lbs |
| Required Accessory | Primary/Secondary Heating Kit (Sold Separately) |
Care & Maintenance Instructions
- Schedule annual maintenance by a licensed HVAC technician.
- Regularly inspect venting and condensate lines for blockage or leaks.
- Flush system annually to remove sediment and maintain efficiency.
- Keep the intake/exhaust vents clear from debris or snow.
- Always use genuine Rinnai parts for repairs and replacements.
- Refer to the user manual for detailed maintenance procedures.

