Rinnai I-Series I090SN Heat-Only 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 I090SN Heat-Only 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!
Rinnai I-Series I090SN Heat-Only Condensing Gas Boiler – 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
Upgrade your home comfort with the Rinnai I-Series i090SN Heat-Only Condensing Gas Boiler — engineered for efficiency, performance, and space savings. Featuring Rinnai’s exclusive self-cleaning stainless-steel heat exchanger and a secondary flat-plate heat exchanger, this advanced system provides reliable whole-house heating with up to 90,000 BTU of output power.
Designed for natural gas or propane, the I-Series achieves one of the highest AFUE ratings in the industry, ensuring optimal energy utilization and reduced operational costs. Its compact wall-mounted design frees up valuable space while maintaining whisper-quiet performance — making it an ideal solution for modern homes.
Whether you're upgrading from an older boiler or installing a new heating system, the Rinnai I-Series delivers dependable comfort, efficiency, and lasting durability.
Key Features:
- High Efficiency: Delivers up to 90,000 BTU heating capacity with one of the best AFUE ratings in its class.
- Dual Heat Exchangers: Self-cleaning stainless-steel primary and flat-plate secondary exchangers for superior heat transfer and longevity.
- Compact Design: Wall-mounted unit saves space and offers clean installation flexibility.
- Fuel Versatility: Compatible with both Natural Gas and Propane.
- Ultra-Low NOx Emissions: SCAQMD-approved for environmentally responsible performance.
- Energy Star® Certified: Meets rigorous standards for energy efficiency.
- Quiet Operation: Engineered to minimize noise while maintaining consistent heat output.
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Long-Term Reliability: Backed by Rinnai’s advanced engineering and quality assurance.
What’s Included![]()
- 1 × Rinnai I-Series i090SN Heat-Only Condensing Gas Boiler (NG)
- Installation manual & user guide
- Mounting hardware kit
- Warranty documentation
Specifications
| Specification | Details |
|---|---|
| Manufacturer Trade Model | i090SN |
| Type | Heat-Only Condensing Gas Boiler |
| Fuel Type | Natural Gas / Propane |
| Central Heating Capacity | 90,000 BTU / (26.4 kW) |
| Minimum Heat Input | 15,000 BTU / (4.3 kW) |
| Energy Efficiency | ENERGY STAR® Certified |
| SCAQMD Approval | Ultra-Low NOx |
| Product Width | 18.5 in / (471 mm) |
| Product Height | 26.4 in / (671 mm) |
| Product Depth | 10.9 in / (276 mm) |
| Product Weight | 59.2 lb / (27 kg) |
| Mounting Type | Wall-Mounted |
| Heat Exchanger Material | Stainless Steel (Self-Cleaning) |
Care & Maintenance Instructions
- Annual Inspection: Schedule professional service once a year for optimal performance.
- Keep Air Vents Clear: Ensure unobstructed airflow around the boiler unit.
- Check Pressure Regularly: Maintain recommended system pressure levels.
- Clean Exterior: Wipe with a damp cloth — avoid harsh chemicals or abrasives.
- Monitor for Leaks: Inspect connections periodically for gas or water leaks.
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Follow Manual: Always refer to the Rinnai installation and maintenance guide for safe operation.
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!
