Rinnai I-Series i090CN Combination Condensing Gas Boiler – 90,000 BTU NG
- 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 i090CN Combination Condensing Gas Boiler – 90,000 BTU NG 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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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.
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As soon as your order is received on our end, we process it!
Rinnai I-Series i090CN Combination Condensing Gas Boiler – 90,000 B...
• 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 ultimate home comfort and efficiency with the Rinnai I-Series i090CN Combination Condensing Gas Boiler. Engineered for both whole-house heating and domestic hot water, this advanced unit combines Rinnai’s self-cleaning stainless-steel heat exchanger with a secondary flat plate heat exchanger—delivering long-lasting performance and energy efficiency.
With a compact, wall-mounted design, the Rinnai i090CN saves valuable space while maintaining industry-leading AFUE (Annual Fuel Utilization Efficiency) ratings. Compatible with both Natural Gas and Propane, it’s built for modern households demanding reliability, quiet operation, and eco-friendly heating.
Upgrade your home with a boiler that performs smarter, lasts longer, and saves more—the Rinnai i090CN.
Key Features:
- Dual Heat Exchanger System – Self-cleaning stainless-steel primary and flat-plate secondary for superior performance.
- Compact Wall-Mount Design – Space-saving and easy to install in smaller utility areas.
- Whole-House Heating & Hot Water – Provides consistent heat and domestic water simultaneously.
- High Efficiency Output – 90,000 BTU input for central heating and up to 7.9 GPM hot water flow rate.
- ENERGY STAR® Certified – Meets top energy efficiency standards for lower utility costs.
- Ultra Low NOx Emissions – Environmentally responsible and SCAQMD approved.
- Recirculation Ready – Designed for instant hot water convenience.
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Durable Construction – Built for long life with corrosion-resistant components.
What’s Included
- Rinnai I-Series i090CN Combination Condensing Gas Boiler
- Wall-mount installation bracket
- User and installation manual
- Hardware and fittings
- Manufacturer warranty documentation
Specifications:
| Specification | Details |
|---|---|
| Manufacturer / Model | Rinnai I-Series i090CN |
| Fuel Type | Natural Gas (Propane compatible) |
| Central Heating Capacity | 90,000 BTU / (26.4 kW) |
| Input Range (Min–Max) | 15,000 BTU (4.3 kW) – 160,000 BTU (46.9 kW) |
| Domestic Hot Water Flow Rate | 7.9 GPM / (29.9 L/min) |
| ENERGY STAR® Certified | Yes |
| Recirculation Capable | Yes |
| SCAQMD Approved | 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 | 73.0 lb / (33 kg) |
Care & Maintenance Instructions![]()
- Annual Inspection: Have a licensed technician perform an annual maintenance check.
- Keep Vents Clear: Ensure air intake and exhaust vents remain unobstructed.
- Water Quality: Use filtered or treated water to reduce scale buildup.
- Regular Cleaning: Wipe the outer surface with a damp cloth—avoid harsh chemicals.
- System Flush: Periodically flush the system to maintain efficiency.
-
Follow Manual: Always refer to the official Rinnai maintenance guide for best results.
Ideal For:
Modern homes seeking energy-efficient heating and hot water in one compact, durable system.
Let customers speak for us
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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!
