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Dunkirk PSB4D Cast Iron Natural Gas Boiler

SKU: 389069

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Save 28% · Retail: $2,974.00

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About the Dunkirk 354001000

Dunkirk PSB4D 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 # 354001000
Weight 368.00 lbs.

Product Features

  • 354001000
  • Input of 112
  • Heating Capacity of 91
  • AHRI of 68
  • AFUE % Rating of 82.0
  • Flue Diameter of 6"


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Questions & Answers


Good day! We appreciate your interest in our Dunkirk PSB4D Cast Iron Natural Gas Boiler. There are a series of steps that you need to follow exactly to safely light your boiler. In this operations manual pages 18 - 22, you will find the steps on starting, operating, checking, and adjusting your boiler. Page 19 holds the steps to lighting your boiler. Please follow them carefully. Should you have further questions, please let us know. Thank you for visiting – your one-stop online store for all your plumbing needs!


Hi! Thank you for your interest in our Dunkirk PSB4D Cast Iron Natural Gas Boiler. Yes, you are correct! According to Dunkirk, the PSB4D is the current replacement for the PVSB-4D. Hope that helps! If you're interested in purchasing the Dunkirk PSB4D, just click the "Add to Cart" button, enter your postal code and you'll be all set. Thank you for visiting Have a wonderful day!