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Dunkirk DXL-100 100 MBH Cast Iron Natural Gas Boiler With Grundfos Pump

SKU: 388836

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Save 28% · Retail: $2,382.00

  Available to Ship in 1-2 weeks

This product is NON-RETURNABLE. Please make sure you understand the item and the dimensions before ordering. By Clicking "Keep in Cart" below you are acknowledging that you understand that this product can not be returned.

Dunkirk DXL-100 100 MBH Cast Iron Natural Gas Boiler With Grundfos Pump

SKU: 388836

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Available to Ship in 1-2 weeks

About the Dunkirk DXL310003220203

Dunkirk DXL-100 100 MBH Cast Iron Natural Gas Boiler With Grundfos Pump. 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. The DXL is an atmospheric chimney vent boiler with Integral Draft Diverter. The Integral Draft Hood reduces the overall height and footprint of the boiler making it ideal for low clearance/space limited installations. This Dunkirk Natural Gas Boiler is designed to circulate water through the piping and then back to the heating boiler. These hot pipes heat the water in the boiler up to a safe maximum temperature, which is stored in the boiler until the system is put into action again by the thermostat in the building. Also included is a Grundfos Pump- These pumps save you time, money, and energy by circulating hot water through your household plumbing without wasting it down the drain.

Product Details

Product: Boiler
Fuel Type: Natural Gas
Other Info: Grundfus Pump Included
Mpn # DXL310003220203
Weight 274.00 lbs.

Product Features

  • DXL310003220203
  • Input of 100
  • Heat Capacity of 83
  • AHRI of 72
  • AFUE % Rating of 83
  • FLUE Diameter 6"


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


Hi! Thank you for your inquiry about our Dunkirk DXL-100. This boiler has an AFUE of 83% which is very energy efficient. If you're looking for a boiler that is ENERGY STAR rated, then, here's the list of our Dunkirk Helix boilers that you can choose from. We hope this helps. If you're interested in purchasing the any of these Dunkirk products, just click on its product page, click the "Add to Cart" button, enter your zip code and you'll be all set. Thank you for visiting Have a great day!


Hi, there! Thank you for inquiring with regards to our Dunkirk DXL-100 natural gas boiler. Are you asking if this boiler is Energy Star certified? If so, it's unfortunately not. Energy Star only certifies boilers with an AFUE (annual fuel utilization efficiency) of 87% for oil and 90% and above for gas. This Dunkirk DXL-100 has an AFUE of 83% which does not meet the Energy Star Certification standard for gas boilers. Here is a specification sheet for reference. If you're in need of an Energy Star certified boiler, we recommend that you take a look at this Dunkirk DkVLT-100 natural gas condensing boiler. Design wise; it is more compact and comes with cost and energy saving features. Here is a specification sheet for more information. The Dunkirk DkVLT-100 is a bit more expensive but makes up for it with state-of-the-art technology which will help you monitor, adjust, and maintain the boiler system in the long run. Thank you and we hope to see you again here at!

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