Rinnai M120SN 120K BTU Natural Gas Solo Boiler | High-Efficiency Wall-Mounted Heating System
- 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 M120SN 120K BTU Natural Gas Solo Boiler | High-Efficiency Wall-Mounted Heating System 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.
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 M120SN 120K BTU Natural Gas Solo Boiler | High-Efficiency Wa...
• 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
The Rinnai M120SN 120K BTU Natural Gas Solo Boiler delivers superior home comfort through advanced efficiency and compact engineering. With a 95% AFUE rating, this heat-only boiler offers consistent warmth while reducing energy costs. Its wall-mounted design saves valuable floor space, making it an ideal replacement for bulky, traditional boilers.
Built for easy installation and low maintenance, the Rinnai Solo Boiler provides whole-home heating with quiet performance and reliable natural gas operation. Each unit includes an LP conversion kit for flexible installation needs.
Note: This is a non-stock/special order item and cannot be cancelled or returned once processed.
Key Features:
- High Efficiency Performance – 95% AFUE ensures maximum heat output with minimal energy waste.
- Compact Wall-Mounted Design – Space-saving unit ideal for smaller mechanical rooms or utility areas.
- Reliable Whole-Home Heating – Provides up to 120,000 BTU for consistent warmth throughout your home.
- Easy Retrofit Installation – Seamlessly replaces older, less efficient boilers with minimal rework.
- Natural Gas Operation – Clean, efficient heating with included LP field conversion kit for versatility.
- Durable Construction – Engineered for long-term reliability and quiet performance.
- Ease of Serviceability – Simplified maintenance with accessible internal components.
Specifications:
| Specification | Details |
|---|---|
| Model Number | M120SN |
| Type | Solo (Heat-Only) Boiler |
| Fuel Type | Natural Gas (includes LP conversion kit) |
| Heating Capacity (BTU) | 23,500 – 120,000 |
| Efficiency Rating | 95% AFUE |
| Vent Type | Vented |
| Control Type | Electronic / IPI |
| Installation Type | Indoor Only |
| Finish/Color | White |
| Dimensions (H × W × D) | 31.8" × 17.3" × 10.46" |
| Shipping Dimensions | 31.5" × 23" × 12" |
| Shipping Weight | 81 lbs |
| Mounting Style | Wall-Mounted |
Care Instructions:
- Schedule professional servicing annually to maintain efficiency and performance.
- Keep air intake and exhaust vents clear of obstructions.
- Check pressure and temperature readings periodically.
- Do not expose unit to outdoor elements; indoor installation only.
- Clean exterior surface with a damp cloth—avoid abrasive cleaners.
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!
