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Hearthstone catalyst guide

Verify you catalyst’s dimensions before ordering. Dimensions of Condar catalysts may slightly differ from an existing catalyst.

Using a thermometer is important to ensure catalyst stays within safe operating temperatures. Click here to learn about Condar’s wood stove thermometers.

Note: The ceramic brick of our catalysts can vary in color, but rest assured our quality is guaranteed. Click here to learn about Condar's catalyst warranty.


For one of the stove models below you have a choice between ceramic or steel catalytic combustors. SteelCat combustors have longer burn time & more heat. Click here to learn about the advantages of steel catalysts.