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    Flue Sizing - Based on the Unique Variables

    As a practical thought experiment, what diameter of class A chimney would be advisable based on these variables? The appliance has a firebox with the dimensions: 32in Long 19in Wide 20in High The appliance can burn wood, coal and oil. The rated BTU outputs for the fuel types are: Wood: 135,000...
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    Furnaces that burn wood and coal.

    Hello, this is my first post on here. But anyway on to my question. Is there available a modern wood and coal burning furnace that will burn wood and coal without doing any kind of modifications. I'm not looking to burn both at the same time but would like to switch between the two quickly and...