'/%3E%3C/svg%3E)
Hover image to zoom
UO-3, 107,000 BTU Output Ultra Oil Boiler
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
 --%3E %3Csvg version='1.1' id='With-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23FBC8B4' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
$3,382.58 each
Backorder
Get it Wed, Aug 5 - Fri, Sep 4
MANUALS (4)
This item replaces: 386-901-003
Schematic Feature!
Replacement Parts
Lift Gate
–
This product weighs 852 lbs. and may require the use of a lift gate. If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
Oil
Atmospheric
2 Year (Parts), 20 Year (Heat Exchanger) Warranty
Hydronic (Water)
140000 BTUs
22-1/16" Width
Description
–
Heating equipment must be installed, commissioned, and serviced by a licensed and qualified professional in accordance with manufacturer instructions, applicable codes, and industry standards. Manufacturers do not accept warranty or technical support requests from homeowners or unlicensed individuals. All warranty and technical inquiries must be initiated by the licensed professional responsible for the installation.
Note: Product Title reflects this boiler's IBR Net Output Rating
Weil McLain ultra oil boilers are premium, smart, durable oil boilers with many state-of-the-art features including:
***This boiler has both 0.80 GPH & 1.0 GPH burner capacity. The product specifications reflect a 1.00 GPH burner capacity
Note: This boiler does not come with the burner. The burner (521-100-030) must be purchased separately.
Note: Product Title reflects this boiler's IBR Net Output Rating
Weil McLain ultra oil boilers are premium, smart, durable oil boilers with many state-of-the-art features including:
- Optional Advanced Features Module that provides indoor/outdoor reset, DHW priority, stage firing and more
- Dedicated water-only oil boiler
- I=B=R Burner Cap (GPH): 0.80 & 1.0 GPH
- Full access, reversible swing-away door for simplified inspection, cleaning and maintenance
- Flexible direct or chimney venting - no power assisted fan needed
- Circulator included
- Three-pass cast iron heat exchanger with captured elastomer seals
- Pre-wired for an optional fully integrated control system
- Sleek, innovatively designed jacket with rear piping and wiring openings and concealed controls for an appliance-like appearance
- Energy Star Rating
***This boiler has both 0.80 GPH & 1.0 GPH burner capacity. The product specifications reflect a 1.00 GPH burner capacity
- At 0.80 GPH
- Input BTU = 112,000
- DOE Rating - 99,000
- IBR Rating = 86,000.
Note: This boiler does not come with the burner. The burner (521-100-030) must be purchased separately.
Specs
–
| Fuel Type: | Oil |
|---|---|
| Boiler Type: | High Efficiency |
| BTU Input: | 140000 |
| DOE Rating: | 123000 |
| IBR Rating: | 107000 |
| System Type: | Hydronic (Water) |
| Vent Type: | Atmospheric |
| Efficiency: | 87% |
| Water Connection: | 1-1/2" |
| Width (Inches): | 22-1/16" |
| Depth (Inches): | 25" |
| Height (Inches): | 40" |
| Warranty: | 2 Year (Parts) 20 Year (Heat Exchanger) |
Contact
+
Happy Independence Day!
Our Customer Support will be closed today in honor of Independence Day. We will be back on Sunday to answer your questions.
Call or text 888-757-4774
Special Hours
Closed Now
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
Need help calculating?
Use Our CalculatorCompare Similar Products
Brand
Fuel Type
BTU Input
DOE Rating
IBR Rating
System Type
CURRENT ITEM
Oil
140000
123000
107000
Hydronic (Water)
You May Also Need
UO3 (S3)
Replacement Parts
SKU: 386-901-006
Brand: Weil-McLain
Search Parts:
SEARCH PARTS
 --%3E %3Csvg version='1.1' id='No-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23CECECE' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
Flueway baffles
330-100-211
Sorry, we don't currently sell this item. Request This Item
Need help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
PART REQUEST FORM
Product Reviews
4 out of 1 review
100% would recommend this product
5 star
0%
4 star
100%
3 star
0%
2 star
0%
1 star
0%
Showing 1-1 of 1 reviews
Weil McLain has a longstanding excellent reputation
Will be replacing an existing 65 year old oil fired steel boiler in my home. Upon inspection, I found the boiler to be a solid, well designed unit, and expect it to perform very well for many years to come. I do feel that the Direct Vent device and related piping is overpriced for what it is.
Paul
Berlin, N.H.
9 years ago
Verified Buyer
Was this review helpful to you?
Product Q&A
2 Questions2 Questions
Q: Does this boiler come with a burner ? If it does can it be used for direct vent ?
Asked by Paul 9 years ago
Add your answer
Verified Reply- SupplyHouse StaffNo, this boiler does not come with a burner. The burner must be purchased separately; SKU 521-100-030 http://www.supplyhouse.com/Weil-McLain-521-100-030-Beckett-AFG-Oil-Burner-For-Weil-McLain-UO-3-Oil-Boiler The boiler can be direct vented with a direct vent kit.
Was this review helpful to you?
Q: Does this boiler contain a coil for hot water? Or does it require a separate tank. Thank you.
Asked by Anthony 10 years ago
Add your answer
Verified Reply- AnonymousThis model is not available with a tankless coil.
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy