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DX® Exothermic Generator Combustion Barrel Reline/Replacement

surface combustion retrofit resource

The DX® Generator combustion chamber barrel assembly is suspended in the center of the cooler by the cover plate and can be removed from the top for maintenance purposes. Surface® offers both refractory relines or complete combustion barrel replacements depending on the requirements.

DX® Generator combustion chamber barrel assembly

Used On:

New and existing DX® generators of all sizes


If the burner is having trouble lighting or staying lit, inspect the combustion barrel and replace if the refractory shows cracks or wear.


Early DX® Generator designs may contain a carbon steel combustion barrel. Upgrade to the most contemporary stainless-steel casing design for longer life.

Ease of Installation:

 Reline/Replace Barrel = Surface® Support Advised

Time Needed for Installation:

1 day of active work

Time Furnace Out of Commission:

  • Up to 10 weeks without a spare barrel to exchange
  • 1-2 days with a spare barrel to exchange

DX® Combustion Barrel Swap:

Reline your existing combustion chamber barrel with new castable refractory or replace it for a new one. Choosing both a direct replacement and relining of the existing combustion chamber barrel facilitates swapping the barrel out during regularly scheduled maintenance shutdowns.

Ready to Get Started?

Please call us when you are ready to discuss a new furnace or maintain, upgrade or replace your furnace or any part of your furnace. At Surface, we look forward to helping you with any thermal processing needs.

Call Surface with the following information ready to initiate your furnace solution.

  • furnace cyclecycle
  • furnace operationoperation
  • hours per yearhours per year
  • available spaceavailable space
  • operating temperature rangeoperating temperature range
  • heat sourceheat source

Give Us a Call

(800) 537-8980