Hello, I am seeking information on how to convert from a ZC Martin Ind model SF36A to a stove insert. Where do I find information about what is compatible and the process of the install? Any answers or advice would be greatly appreciated. If there isn't an insert that will work, what would the process be of taking out the old and creating a space for a wood burning stove? House is about 1200 sq ft and would like to be able to heat the whole house. Thanks in advance!