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ES2-5, 103,000 BTU Output High Efficiency Cast Iron Boiler (NG)

Brand:
Burnham
SKU:
ES25BNI-T
Rating:
(6)
Q&A:
(17)
ES2-5, 103,000 BTU Output High Efficiency Cast Iron Boiler (NG)
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$4,052.27 each
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MANUALS (5)

Install Instructions

This item replaces: ES2-5

Schematic Feature!
Replacement Parts

Lift Gate

This product weighs 363 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.
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Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: BTU Output
103000 Max BTUs
Product Highlight: Fuel Type
Natural Gas
Product Highlight: Vent Type
Atmospheric
Product Highlight: Warranty
1 Year (Boiler Parts), 25 Year Limited (Heat Exchanger) Warranty
Product Highlight: System Type
Hydronic (Water)
Product Highlight: BTU Input
140000 BTUs

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

The Burnham ES2 boiler is the first all new, atmospheric, gas-fired, cast iron boiler for home heating that has been designed in decades. The ES2 Series boasts many innovative features including a proven, long-lasting, American-made cast iron heat engine, the ease and simplicity of atmospheric venting, an exclusive control system that provides features unrivaled by any boiler in the market, an unparalleled 85% efficient ENERGY STAR® rating for an atmospheric gas boiler, and an attractive exterior which is equivalent or superior to the design of the most sophisticated condensing boilers.

Features:
  • The only 85% AFUE Atmospheric Cast Iron Boiler Available
  • Qualifies for Energy Star Rebates
  • Efficient Operation Saves Homeowners Money
  • Innovative Design, Made in America
  • Ideal Replacement for Millions of Existing Boiler Installations
  • Burnham IQ Control System
  • True Plug & Play Controls Utilizing Burnham IQ Option Cards
  • Auxiliary High Limit
  • Optional LCD Touch Screen Display Sold Separately
  • Altitude up to 10,000 ft

Specs

Fuel Type:

Natural Gas

Vent Type:

Atmospheric

BTU Input:

140000

Boiler Type:

High Efficiency

BTU Output:

103000

DOE Rating:

118000

IBR Rating:

103000

Efficiency:

85%

System Type:

Hydronic (Water)

Capacity (Gallons):

4

Vent Size:

6"

Water Connection:

1-1/4"

Gas Connection:

1/2"

Features:

EI/Spark Ignition

Height (Inches):

41"

Width (Inches):

18-1/2"

Weight (lbs):

353 lbs

Depth (Inches):

33"

Warranty:

1 Year (Boiler Parts), 25 Year Limited (Heat Exchanger)

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Replacement Parts

SKU: ES25BNI-T

Brand: Burnham

Search Parts:
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Block Assembly, 109607-05
109607-05
Burnham
Canopy Assembly, 109617-05
109617-05
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Flue Baffle
102678-01
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Product Reviews

5 out of 6 reviews
100% would recommend this product
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100% would recommend this product
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Showing 1-6 of 6 reviews

Really easy install

So simple to install, I almost overthought it. I was replacing an old Carrier boiler with external aquastat, control, gas valve, etc. I dismantled the old system and refitted the gas and water lines, installed the Taco circulator, re-ran the electriccal and thermostat wires and hooked up the vent. I couldn't believe how simple the hook-ups were. I couldn't believe that there was no special wiring or settings. I threw the switch and set the thermostats and it worked perfectly. Nothing further. Just so beautifully simple. . . .
Tom
Fairfax, VA
9 years ago
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Love this product!

The quality of the product is outstanding. Very satisfied!
Joy
Farmingdale, NJ
10 years ago
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What an improvment!

I replaced a 40 year old oil fired boiler with this unit. I am amazed at how quiet and efficient this boiler is, compared to the old unit. If you are in the market, make the change. I stuck with the atmospheric boiler due it's simplicity.
Dave
Bitterroot Valley, Montana
11 years ago
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So far so good

Just got it installed. My plumber said he puts the ES2's in all the time and they are good boilers.
Mel
Boulder, CO
13 years ago
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easy to install. so far so good

hoohed it up and everything was pre factory set.
narble
maytown,pa.
14 years ago
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So far it exceeds expections

I am very happy with this boiler. This unit is in my home and has reduced my heating bill by an estimted 22%. I leave in Northern Michigan so this savings is big. I would give this unit serious consideratiion if you are looking for a new boiler.
Dave- likes to save money
Cheboygan Mi
16 years ago
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Product Q&A

17 Questions
17 Questions
ASK A QUESTION

Q: I have a taco 5 zone controller on my existing weil McLean oil boiler and converting to gas boiler will the taco 5 zone controller work on this boiler or does it use a different system for zone control and if so how many zones will it control

Asked by dave 11 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

the Taco controller should work fine.

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Q: Do I need a 6" stainless steel chimney liner or would any 6" chimney liner do the job?

Asked by Stephen 12 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

You would need to check with your local codes and requirements, this based on your location and the installation.

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Q: I do not have an existing chimney, Can i vent directly through ceiling without chimney.

Asked by vincent 12 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

This appliance must be vented into a listed gas vent, masonry, metal, or factory- built chimney as required for Category I appliances.

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Q: Interested in ES2, have alot of questions - 1.)Do you have to use a chimney liner, i have a 7 x 7 flue which has always been gas and in very good condition. 2.)Does ES2 come with a circulator pump- i have 5 taco zone valves and want to use Burnham in-direct water heater. Also,the IQ Control System scares me, is it hard to install ? is it an optional feature?

Asked by Bill 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Burnham does require chimney liners with this boiler. See page 8 of the Installation Guide at the link below for more information. The boiler comes standard with a Taco 007 circulator pump. The IQ Control System provides extra options (a touch screen display, as well as outdoor reset, low water cut-off, and high limit plug-in cards), but you do not have to use any of these features. http://s3.pexsupply.com/manuals/1253196590775/17461_PROD_FILE.pdf

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-

I'm fairly certain that the boiler need a liner, check w/ local plumbing code official. Yes it comes w/ a pump. No, not hard to install.

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Q: I want to purchase a new burnham ES2 series boiler, I am changing from oil to natural gas, My current oil fired boiler has DOE HTG capacity or gross output BTU/HR 129,000. Ratings 112,000 BTU/hr water I also want to purchase an indirect water heater, the specifications mention 99,000 BTU minimum. What's the closest model ? ES2-5? thanks

Asked by Gary 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Based on BTU ratings, the closes unit is the ES2-6. This will have to be inspected further by a technician or installer.

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Q: how reliable is the electrical components? Have there been any problems reported?

Asked by Bill 14 years ago

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I have installed two of these boilers and have had no problems. Thank You Stan Miller

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-

low water cut off was dead on arrival, replaced and never a problem since

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Q: Chimney Liner size I have a 6" chimney liner installed in my chimney flue. Do I have to install a smaller chimney liner?

Asked by 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

This particular boiler is actually designed to vent through a 6" chimney, so no modifications will be necessary.

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Q: is it possible to get a kit for a sidewall chimney out of a basement with this model ?

Asked by new home owner 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

No, you cannot do side-wall venting with this unit.

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Q: Does this product have electronic ignition?

Asked by 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Yes, the ES2 boiler is only available with electronic ignition (not standing pilot).

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- Anonymous

This unit does come with an electronic ignition.

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Q: I have been told that this unit could need the fan-in-a-can installed with it to provide more air supply. Is this true, have you heard of it needing it in certain applications and if so which would I purchase for this unit?

Asked by 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

If there is not enough make up air you may need a fan-in-a-can unit.

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