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Ultra 80 - 62,000 BTU Output High Efficiency Boiler - Series 4 (Propane)
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MANUALS (7)
This item replaces: 383-500-721
Schematic Feature!
Replacement Parts
Lift Gate
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This product weighs 193 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
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Propane
AL29-4C, PVC, Direct Vent
15 Year Limited (Heat Exchanger), 1 Year (Parts) Warranty
Hydronic (Water)
22-13/16" Width
Slate Gray
Description
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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: the Ultra boiler is no longer shipped with the Sentinel X100 Inhibitor & Sentinel Inhibitor Test Kit as stated in the User Guide.
Series 4 Ultra CT Boilers
Note: Product Title reflects this boiler's IBR Net Output Rating
Key Features
The Ultra Easy-Up Manifold Kit can speed up installation of the primary/secondary piping required on Ultra boilers. Weil-McLain's Easy-Up manifold kit is designed by the boiler manufacturer and provides the added feature of optional indirect water heater connections.
Easy-up Manifold Installation Options:
Note: the Ultra boiler is no longer shipped with the Sentinel X100 Inhibitor & Sentinel Inhibitor Test Kit as stated in the User Guide.
Series 4 Ultra CT Boilers
Note: Product Title reflects this boiler's IBR Net Output Rating
Key Features
- Gas fired water boiler with cast aluminum heat exchanger
- Venturi mixing body mixes air and gas providing higher efficiency
- Designed to operate in low temperature condensing applications
- Outdoor reset and domestic hot water priority standard
- Negative regulated gas valve precisely delivers gas to the boiler
- Electronic control module automatically adjusts blower speed and gas flow rate in response to environment
- Modulates with 5 to 1 turndown ratio
- Variable speed motor matches combustion output to heating needs
- High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications.
The Ultra Easy-Up Manifold Kit can speed up installation of the primary/secondary piping required on Ultra boilers. Weil-McLain's Easy-Up manifold kit is designed by the boiler manufacturer and provides the added feature of optional indirect water heater connections.
Easy-up Manifold Installation Options:
Specs
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| Width (Inches): | 22-13/16" |
|---|---|
| Fuel Type: | Propane |
| Vent Type: | AL29-4C PVC Direct Vent |
| Boiler Type: | High Efficiency |
| Color: | Slate Gray |
| Efficiency: | 93.5% |
| System Type: | Hydronic (Water) |
| Features: | Direct Vent Condensing EI/Spark Ignition |
| Vent Size: | 2" 3" |
| Water Connection: | 1" |
| Gas Connection: | 1/2" |
| BTU Input: | 80000 |
| DOE Rating: | 71000 |
| IBR Rating: | 62000 |
| Warranty: | 15 Year Limited (Heat Exchanger), 1 Year (Parts) |
| Depth (Inches): | 19-15/16" |
| Height (Inches): | 43.0625" |
Contact
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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
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Friday
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Saturday – Sunday
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Need help calculating?
Use Our CalculatorCompare Similar Products
Brand
Width (Inches)
Fuel Type
Vent Type
Boiler Type
Efficiency
CURRENT ITEM
22-13/16"
Propane
AL29-4C
PVC
Direct Vent
PVC
Direct Vent
High Efficiency
93.5%
You May Also Need
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Replacement Parts
SKU: 383-500-733
Brand: Weil-McLain
Search Parts:
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Boiler door (Slate gray)
383-500-136
Sorry, we don't currently sell this item. Request This Item
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Screw flat head slotted 17 Series for jacket front door
562-650-126
Sorry, we don't currently sell this item. Request This Item
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Product Reviews
3.33 out of 3 reviews
67% would recommend this product
5 star
33%
4 star
33%
3 star
0%
2 star
0%
1 star
33%
Showing 1-3 of 3 reviews
2 years in
Nice boiler, was a pretty easy install, been running for 2 years and no trouble so far. What more can I ask for?
Dan
Union City, PA
9 years ago
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unit was already 4 years old when it arrived
It was new in a crumbling dusty carton but already 4 years old. I suspect the warranty is almost gone as well. So much for ordering the latest products with all the improvements.
Son
Chicago area
10 years ago
Verified Buyer
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Super Quiet
Follow the installations instructions and make sure to use all 3 circulation pumps.
cdr
Tallahassee Florida
12 years ago
Verified Buyer
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Product Q&A
15 Questions15 Questions
Q: I have 1660 sq house, I going to used the 80. My house is baseboard with three zones one each floor. In the manual the spec. are 1 inch feed and return, all baseboard are 3/4 inch. will this cause a problem for me. Thank you
Asked by joe, GC 13 years ago
Add your answer
Verified Reply- PexSupply StaffThis wouldn't cause a problem. Keep in mind also that this boiler requires primary/secondary piping, so it would be possible to have 1" lines on the boiler loop with 3/4" lines feeding the baseboards.
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Q: Will this boiler works in condensing mode if I use it with cast iron radiators in a single loop pipe or I have to switch to two loops pipe to increase dropping of the water temperature in the return pipe? Is it possible that the integrated boiler control will adjust the speed of circulating pump to achieve condensing mode ( less than 120F) for single loop pipe so this way I will not have to switch to two loops??
Asked by Beekmansup 14 years ago
Add your answer
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Maybe? Keep your project simple. If the federal rebate is still in effect; buy the condensing boiler. If not--don't waste your money. Hydronics is not an exact science yet. I will be writing a book on hydronic installation in the near future. It will be simple and geared to the DIY. The outdoor boiler reset, and primary piping are your best friends if you decide to go with a condensing boiler. The integrated boiler control is a switch. It will not adjust the speed of the circ.
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I don't know why it would not work that way
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Q: I am thinking about eliminating my oil boiler and replacing it with propane (no gas available). Can I use a gas boiler and convert it to propane. Are the propane boilers just converted gas boilers.
Asked by Ed 14 years ago
Add your answer
Verified Reply- PexSupply StaffIn Weil-McLain's Ultra series, only the Ultra 80 can be ordered as either NG or LP. All other models come configured for NG and must be converted to LP in the field. They include all necessary parts to do this.
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Q: My house is 40 year old with baseboard heating what is the best water temp to set the boiler at sq ft is about 1300
Asked by 14 years ago
Add your answer
Verified Reply- PexSupply Staff180°F is probably the most common setting, but this can be modified depending on the application.
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Q: What clearances are required for mounting, especially next to a fuse box?
Asked by Joe 15 years ago
Add your answer
Verified Reply- PexSupply StaffPlease refer to the manual (page 5).
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Q: Hi, Why no one is suggesting to get a real Manual J calculation from professional energy experts when people are asking about the size of the unit they need? Nobody should buy any kind of heating unit without an accurate heat load calculation on their house. I have an Ultra II 80 gas boiler with 6 fan coil units (10,000 BTU each) since 4 years, my house is 3200 sq.ft., and the unit is still more than enough for heat. My system temperature setting is on 130F because I try to keep the returning water bellow 120F, so the unit can condensate better also increasing the efficiency. You can't use the "rule of thumb" method anymore. The energy is just cost too much. I also think your unit sizing calculator needs some upgrade, it is out of range. I don't understand why I need a 66,000 BTU unit if I'm using low temperature radiant heat, and it jumps up to 115,000 BTU if my heating is baseboard or fan-coil at the same house settings? How it is possible?
Asked by Szabi 15 years ago
Add your answer
Verified Reply- PexSupply StaffRadiant heating requires significantly lower water temperatures in order to achieve the same room temperatures (meaning less powerful boilers). A manual J (heat loss calculation) is always recommended. Any BTU calculator should only be used as a first step or to gauge a ballpark estimate.
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Q: can any of these boilers work with anti-freeze solution for application in a bungalow that is not heated during part of the winter?
Asked by Manny 15 years ago
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Verified Reply- PexSupply StaffYes, you can use glycol with the boiler.
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Q: what is the best temp of out going boilerwater temp for the best efenciey ? to make it condenstate ther is no water heater just in floor heat
Asked by 15 years ago
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Verified Reply- PexSupply StaffThe water temperature needs to be 130°F or lower in order to make the unit condense.
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Q: Do they make boiler that will do both heat and hot water?
Asked by cooney 15 years ago
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Verified Reply- PexSupply StaffFor the Weil-McLain Ultra series, you will need to get an indirect water heater along with the boiler.
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Q: Hi In some of the rooms where I don't use I set the thermostat to 40 degrees target temperature. The room gets heated to 55 degrees. Doesn't go below 55. Why?
Asked by Ralph 16 years ago
Add your answer
Verified Reply- PexSupply StaffWe would suggest checking your thermostat settings as well as the low limit on the thermostat.
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