STEELCAT Catalytic Combustor for Jotul and Buck Woodstoves

STEELCAT Catalytic Combustor for Jotul and Buck Woodstoves


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A Genuine Condar STEELCAT™ Catalytic Combustor fabricated at our factory in the foothills of Western North Carolina.


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The option to upgrade your ceramic CC-552 combustor to STEELCAT™ is now available. Advanced technology offers you:

  • A more durable honeycomb. Can’t crack or crumble, even at highest operating temperatures.
  • Less build-up of wood ash, within the honeycomb cells. Sharp steel edges actually “cut” ash as it goes up the flue. Better air flow, less cleaning maintenance.
  • Lower “light-off” temperature. Engage your draft bypass at 100 degrees lower temperature than with ceramic honeycomb.
  • Steel heats up faster than ceramic. Recovers more usable heat from wood smoke.

A worthwhile extra expenditure for better performance!

This 4" wide by 7" long by 2" (10.16 x 17.78 x 5.08 cm) deep combustor fits the following stoves:

  • Jotul Firelight
  • Jotul Alpha
  • Jotul Series 3
  • Jotul Series 8
  • Buck Model 70
  • Buck Model 50 Supreme
  • Buck Buck Model 17
  • Buck Buck Model 20

A Note about Gaskets
Combustors may, or may not, require a gasket to ensure a good fit inside the stove. This depends on the particular stove design. Visit to learn more about combustor gaskets and how they work.

When to replace your combustor
After 12,000 hours of use, a combustor is expected to have lost 25% of its catalytic function.  This is a natural process called “wear-out.”  Molecules of platinum and palladium aren’t actually lost, but their binding to smoke pollutants that can’t be removed by maintenance means gradually your woodstove will recover less heat from the smoke.  Gradually you’ll notice less warmth, and eventually you’ll see dark pollutants from your chimney.  (White steam is a normal emission from any EPA-approved woodstove, and water vapor is a natural harmless byproduct of catalytic reaction.)

Conscientious owners replace their combustors after roughly 12,000 hours even if the combustor is intact. The payback from your additional heat recovery is well worth your cost. 

"I was so happy to find that you now distribute through Ottawa. The Steelcat is amazing. It increased my output and burn duration so dramatically that last year I only turned my oil furnace on for a week last winter".

Peter Bigelow
Halifax, NS


"I just wanted to say how happy I am with our stove now that I have put in the new combustor. Previously I always had to be watching and adjusting it, but now I am amazed how little adjusting is required to get and hold the stove temperature, and all with no blow backs. Great product my stove is performing like new".

Jeff McCue
Rothesay, New Brun


"The [Condar] Flexburn catalyst arrived promptly and was well packaged.  It was made with precision and care and infinitely better than the original and replacement catalyst I previously bought - both felt flimsy.  I could tell that it was a quality product just by picking it up!"
"Thank you again for manufacturing such a good catalyst!"

Frank Simpson
Tiny Township, Ontario