Dunkirk Boilers

Everything you need on Dunkirk Boilers, including model details, industry rankings and customer reviews, all in one place.

Dunkirk Boiler Overview

Dunkirk sells gas- and oil-fired hot water and steam boilers, as well as indirect water heaters, for residential and commercial use. Dunkirk is a brand owned by ECR International, a private company headquartered in Utica, NY.

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Consumer Reviews of Dunkirk


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #22 of 82 Boilers
  • 21.15% of customers recommended

Corporate History

In 1928, Earle C. Reed founded the Dunkirk Radiator Corp. and The Utica Cos. To help with production, Dunkirk purchased the Sanitary Receiver Co. in the late 1950s. Later, Dunkirk made acquisitions to expand its presence in the boiler market. In 1992, Dunkirk purchased Ultimate Engineering. In 1998, Dunkirk purchased the boiler-related assets of Pennco Inc. In 1999, Dunkirk and Utica merged to form ECR International. The initials “ECR” refer to the companies’ founder, Earle C. Reed.

In 2008, ECR built a 25,000 square foot stamping plant at the Dunkirk facility and upgraded the manufacturing equipment.

Product Lines

Dunkirk manufactures gas, condensing gas, and oil-fired boilers.

The condensing gas boilers offer AFUE ratings ranging from 90 to 95 percent and include the Helix VLT and Helix VX, both of which are 95% efficient and earned the Energy Star 2015 Most Efficient label. The Q95M-200 modulating condensing boiler was designed for radiant-heating applications and homes where a large quantity of hot water is needed. The Q90-100 Series IV comes in a compact design for installation in small spaces; it features a high-efficiency cast aluminum heat exchanger and advanced controls. The Q90-200 Series II uses a high-efficiency cast aluminum monoblock heat exchanger.

Gas-fired boilers include the DXL and WPSB Series II, which feature the company’s “fuel smart” hydrostat control. The 3-in-1 control includes a temperature limit with LED display for diagnostics, low water cut-off and boiler reset to save fuel by turning on the burner only as necessary.

Oil-fired options include the ESC IV, EW Empire II Series II and Excelsior EXB, each of which features cast iron heat exchangers and Honeywell controls. Other features include a protective heat shield baffle designed to protect the casting above the water line; controls that measure the temperature change within the boiler to determine when to fire; and easy-to-program dial settings.


Dunkirk warranties range from 12 to 20 years, depending on the product. The company’s gas-fired boiler warranties include non-prorated terms.

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Dunkirk Boiler Reviews

Showing 1-5 of 51 reviews

"Dunkirk Bas Choice"

1.0 rating
Very Unsatisfied

I do not recommend a Dunkirk. I have a Dunkirk boiler for 7 years now and all I have is problems. I have woken up so many morning with no heat it is not funny. The unit is constantly breaking down. I am on my 3rd mother board for the boiler. Fuses in the boiler blow. It is suppose to provide error codes so you know what the problem is and it does not even do that. I suggest looking at other manufactures for a new boiler since this one is not reliable boiler at all.

Keith Lawrence

New Jersey

"Buyer Beware, Don't Buy Dunkirk"

1.0 rating
Very Unsatisfied

First boiler installed on November 9, 2012. It quit working several times. Pilot had to be re-lit numerous times. Pilot won't stay lit. January 19, 2015 Dunkirk service rep inspected boiler. Had to be replaced even though it was out of it's 1 year warranty. January 19, 2015 new boiler installed. Same problem within 6 months of new installation. Continuing to happen every few months. On November 11, 2017 stopped working and can't get pilot to stay lit. This is in a 4 unit apartment building, inconveniencing all tenants. I had to buy space heaters for all tenants. Problem after problem. Dunkirk doesn't want to help. Don't buy a Dunkirk!

Beverly L.

North Tonawanda, NY


1.0 rating
Very Unsatisfied

First one rotted, it was falling apart when they removed it. The replacement died almost immediately and is now cracked. Junk junk junk

Rick Rock

Palmer, MA


1.0 rating
Very Unsatisfied

After 12 years and 2 boilers I had to get a new furnace again! They don't stand behind there product! I have pictures to prove that there product is no good! Please don't be there next victims!

R Jones

Swoyersville, PA

"Most Unreliable boiler ever"

1.0 rating
Very Unsatisfied

This boiler is the worst!! It has turned in to a manual boiler. When it's freezing cold outside and we need it the most it will go out in the middle of the night it and when I wake up my house is so cold!! Parts stop like crazy always leaving it out for days!!! The heating company is always at our house fixing it. I have gotten so used to the van in the driveway because it's common for it to be at my house!!! I will maybe never buy a Dunkirk boiler again but definitely not a quantum 95 boiler!!!!!!! One more thing I like to thank Dunkirk for all the stress.

Joey Worden

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