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Dunkirk PSB3D Cast Iron Natural Gas Boiler

SKU: 389067

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Save 27% · Retail: $2,723.00

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About the Dunkirk 353001000

Dunkirk PSB3D Cast Iron Natural Gas Boiler . Since the late 1920's, Dunkirk has delivered innovative, efficient and dependable home heating systems to professionals, building owners and homeowners. This is the best way to deliver heating equipment that lasts and reduces home heating costs. Dunkirk's Plymouth Steam (PSB) Boiler offers a great combination of heating comfort, efficiency, and Dunkirk dependability. Additional features include an electronic low-water cut off, and electronic ignition.

Product Details

Product: Boiler
Fuel Type: Natural Gas
Mpn # 353001000
Weight 297.00 lbs.

Product Features

  • 353001000
  • Input of 75
  • Heating Capacity of 62
  • AHRI of 47
  • AFUE % Rating of 82.7
  • Flue Diameter of 5"


4.5 out of 5 rating is our rating for PlumbersStock, we got that rating because we have lots of experience and great people with expertise in plumbing. BUT WE WANT YOUR HELP. This product doesn't have any reviews yet, and we don't want to write our own reviews. It is more valuable to us that the customers get to share their experience with our products. Please, if you have any experience with this product, take a moment to share and help someone else who is trying to make a decision. Thank you!

Questions & Answers


Good day! Thank you for posting a question. If you are asking how to light the pilot light of this Dunkirk PSB3D cast iron natural gas boiler, then, I may say that this is the most crucial information you need to know about this boiler. This Dunkirk PSB3D is an intermittent ignition boiler. Meaning, it is already equipped with an ignition device that AUTOMATICALLY lights the pilot. So, you should NOT try to light it by hand. To know more of its gas valve operating instructions, please read page 18 of this manual. As our valued customer, we are inviting you to sign up for our newsletter so you can avail our great deals and exclusive discounts. Just enter your email address in the field provided below and click on Sign Up. Thank you for choosing!


Good day! We appreciate you asking about our Dunkirk PSB3D Cast Iron Natural Gas Boiler. There are many possible causes as to why your boiler does not heat. The manufacturer has provided the common causes and suggested solutions that you may try in this manual specifically on page 24. If these do not work, please contact Dunkirk at 315.797.1310. Thank you for visiting – your one-stop online store for all your plumbing needs!


Hi, there! Thank you for your interest in our Dunkirk PSB3D natural gas boiler. According to Dunkirk, you should open both valves to know the water level but you cannot bleed the boiler since it's a steam type. Hope this helps. Thank you and we hope to see you again here at!


Howdy! Sorry to hear that you're having trouble with your boiler. According to Dunkirk, they are uncertain why there is a call for the low water cut-off yet your PSB continues to run. There could be a variety of explanations. They won't be able to diagnose issues without actually examining your boiler. They highly suggest that you consult with a service professional. Thank you for visiting Have a great day!


Howdy! We really appreciate that you're asking about our Dunkirk PSB3D cast iron natural gas boiler. According to Dunkirk, it is best that you contact one of their technical service representatives to better assist you with your concern. You can call them @ 1-800-253-7900. We hope it helps. Thank you for visiting Have a great day!


Hi! If you like to purchase this Dunkirk PSB3D Cast Iron Natural Gas Boiler, you can buy it here on and we'll ship it straight to Brooklyn, New York. All you need to do is to click the Add to Cart button and enter your zip code to get a shipping cost estimate and proceed to checkout to begin the ordering process. Thanks for choosing as your online shopping buddy. Have a great day!


Good day! We are happy for your inquiry about our Dunkirk PSB3D Cast iron natural gas boiler. If I understand your question correctly, you are asking about the filter of this boiler? Boilers don't have filters. If you have other questions, please do not hesitate to ask and we will be more than happy to assist you. Thank you for visiting and have a wonderful day!


Hi there! In response to your inquiry about the Dunkirk PSB3D Cast Iron Natural Gas Boiler, this natural gas boiler has a 75,00 BTU rating. For the other question, yes, it is natural gas and also a steam boiler. If you're interested in purchasing the Dunkirk PSB3D, simply click "Add to Cart" and enter the required information and you'll be all set. Please don't hesitate to contact us if you have any further question about this natural gas boiler. We thank you for choosing Have a joyful day!