I am toying with just cleaning out the junk cat scraps and refractory from my melted down VC Defiant Encore and running it as a non cat stove, and wondering how bad that would be. Would it just be the equivalent of a pre-EPA smoke dragon, like the original Vigilant (which had secondary combustion which didn't really work) and require a bit more attention to keeping the chimney clean, or would it be a real pig, inefficient or flithy? We heat a whole house with it, so it gets run pretty hard, which should help.