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B-4 - 84,000 BTU Output Oil Boiler w/ Riello Burner

Brand:
Biasi
SKU:
B-4
Rating:
(5)
Q&A:
(6)
B-4 - 84,000 BTU Output Oil Boiler w/ Riello Burner
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We no longer carry B-4
Unavailable since November 26, 2018

Product Highlights

Product Highlight: Fuel Type
Oil
Product Highlight: Vent Type
Atmospheric
Product Highlight: System Type
Hydronic (Water)
Product Highlight: Width (Inches)
18-3/4" Width
Product Highlight: Height (Inches)
29.75" Height
Product Highlight: Depth (Inches)
19-1/2" Depth

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: This product comes unassembled. The image shows a completely assembled model.

Note: Product Title reflects this boiler's IBR Net Output Rating

The B-10 boiler systems have been heating residential and commercial buildings throughout the world for years. It has proven its fuel efficiency and durability in countries where fuel can cost up to four times as much as in the U.S. The same fuel saving technology is now available here in North America. With the three pass boiler design and low water content, heat is quickly supplied for your heating zones and hot water needs. Combined with an outdoor reset control, you can achieve a fuel savings of up to 40% over conventional single pass boilers. You will also have peace of mind since the B-10 boiler package complies with ASME and UL standards and is IBR rated. The B-10 boiler system is the cost-competitive heat and hot water system of choice.
Specifications
  • Comes with F-3 Riello Burner
  • Heating Capacity : 110,000 BTU
  • Gross Input Burner Capacity : .90 GPH, 115 MBH
  • Net Output : 96 MBH
  • AFUE Efficiency : 85.8%
  • Water Content : 4.7 Gals.
  • Length (L) : 19.5 inches

Specs

Fuel Type:

Oil

Efficiency:

86.8%

Vent Type:

Atmospheric

System Type:

Hydronic (Water)

Width (Inches):

18-3/4"

Height (Inches):

29.75"

Depth (Inches):

19-1/2"

Vent Size:

6"

Water Connection:

3/4"

IBR Rating:

84000

DOE Rating:

97000

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Compare Similar Products

Brand
Fuel Type
Efficiency
Vent Type
System Type
Width (Inches)
Oil
86.8%
Atmospheric
Hydronic (Water)
18-3/4"

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Product Reviews

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100% would recommend this product
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Showing 1-5 of 5 reviews

I Would buy and install this product again and again....

This is the 5th Biasi boiler I have installed and it is just easy to install. it is economical and costs little to operate. The theory is that with such a small water capacity in the boiler itself and all of the needed water out in the system,the boiler runs less and has to heat only the water in the boiler to maintain proper operating conditions. It is small,takes up less space than many of its' competitors units and is very easy to service.
Tom
Dover Plains, N.Y.
10 years ago
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Even plumber was impressed with unit

The unit came quickly, was well protected and assembled with no problem. Red is a good color for it, the plumber learned quickly how fast the pipes heated up and burned his hands. Puts out a lot of heat for a small unit. easy to plumbe and service.
Sal
Central Conn.
13 years ago
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I am a plumber on long Island

My name is ray from 24/7 plumbing and heating the biasi triple pass technology is so rite on target delivering a fast rise in temperature to 180 in twenty seconds or so! amazingly my customers are enjoying a steep savings in oil consumption. I would only install for my customers the absolute best!If you are thinking of upgrading an old boiler get an effeciant BIASI BOILER have a great day.
24/7 plumbing and heating
long island new york
14 years ago
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Nice

I am a plumber by trade and I have installed many boilers but this one was easy to deal with and install. This boiler got up to temp. Fast I will always recommend this boiler to anyone
JC
long Island
15 years ago
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excellent little boiler

Easy to put together, runs quiet and fits in a small space. Excellent product.
Dave
Sanbornton, NH
15 years ago
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Product Q&A

6 Questions
6 Questions
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Q: Could this boiler be used with a brick chimney with a 8" by 8" clay liner without any condensation issues? I am in Massachusetts. If it does do I need a single pass boiler to avoid lining the chimney? Thanks, Bryan

Asked by Bryan 13 years ago

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- Pennell's Masonry

I am a Chimney tech from Maine and I see new boilers vented on clay liners all the time. this is not the right way to vent a high efficacy boiler. they need to have a stainless steel liner at least a 316 alloy. over time the liner will begin to break down and flake away. this will lead to your clay liners collapsing and causing a blockage and sending the exhaust gasses into you home to KILL you! if your updating your heating system update your chimney as well. it will save you thousands in the long run.

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Hi Bryan: I put one in about 4 years ago. I was with the burner technician this weekend and he had nothing but good things to say about this boiler/burner combination.  I am in coastal CT, so it is probably a lot warmer on average here. Mine is in the basement with a two story tile lined brick chimney that is 9x12 I think.  No problem so far.  I think most experts will tell you that it may only be a matter of time, since I actually have it fired at 0.5 GPH which is very low.  The house doesn't require much heat and no boilermate, so 1/2 gall on per hour is plenty, even during the coldest snaps.  It helps quiet the burner down and seems to save fuel.  The tech says it is a little more exacting to get it burning correctly, so I say get a really good tech who knows Riello to do your service. Peter

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-

My feeling is that you would be fine, unless say you had a very long chimney (say a 3 story house + basement) and ran the boiler in short bursts.This boiler as good efficiency relative to it's 'class' but it still puts out a high enough exhaust temperature to keep the chimney dry. I use this boiler with a stainless lining within an 8x8 chimney, it pulls draft immediately so is probably not creating any significant condensation on start up, and certainly not after running for a couple of minutes. I also live in New England and have a two story house worth of chimney length. I doubt the clay liner would take all that much longer that the stainless steel to heat up above the condensation temperature. Just anecdotal evidence here though, hopefully someone with your particular situation will be able to respond.

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Q: Can this boiler be converted to gas?

Asked by Happy owner considering changing to gas 14 years ago

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Yes this boiler can be converted to gas. In fact Riello make a gas burner that would fit perfectly, 40 GS3 I believe. However, I'm sure you can find the boiler by itself without the oil burner to save some money.

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-

Per the manufacturer you have to change the burner from oil to gas.

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-

Hi: Page 20 of the manual here: http://s3.pexsupply.com/manuals/***.****74/17081_PROD_FILE.pdf shows settings for both LPG and natural gas. I would talk to both Pex and Biasi to verify that your setup will work. I installed this boiler fired with oil two years ago and it has been great. It is high quality and efficient, without the price of the Viessmann or Buderus . The Riello burner is great, but make sure you get someone who knows how to set them up. My first contractor had some difficulty with it but the next one got it fine tuned. Before that, it was loud and not burning all that cleanly. Peter

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Q: Are the aquastat and ciculator pump included? Thanks

Asked by Simon 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

The aquastat is included, but this unit does not come with a circulator.

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Q: Does this boiler come with the "controller kit" required for installation. My plumber is asking. If not, do you sell it and how much does it cost? Thanks.

Asked by Bill 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

For a list of included parts, please refer to the following manual, beginning on page 7: http://s3.pexsupply.com/manuals/1249544647674/17081_PROD_FILE.pdf

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Q: will this boiler support a tankless hot water add on?

Asked by 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Biasi's B-10 series boiler system does not support tankless hot water. You would have to use an indirect hot water storage tank. This allows the boiler to run more efficiently.

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Q: Can you connect a oil boiler and a hot water heater to the same hydronic system? How do you connect?

Asked by 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Oil boilers and indirect water heaters can be connected to the same hydronic system. In terms of installation, refer to the boiler manual or seek a licensed technician.

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- J

by adding a zone to your boiler you can add an indirect water heater which is a water heater that has feed and return pipes for the boiler side and hot and cold pipes for the domestic side.

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