I currently have a 1977 VC vigilant wood stove, and am looking to get something newer. The new wood stove must be able to put out the same heat or more, must be top loading, and it needs to come in a enamel finish. I have a 8" chimney. I have been looking at some stoves that say they need a 6" chimney, but would my 8" chimney draft right. Please give me your opinions.