I purchased a new to me Yukon super jack last night. Overall stove looks great and sure is heavy! Only downfall is some how the guy warped and broke the grate and the wiring is a mess. Where is the best place to purchase replacement grate? Thought about making my own for now. I found a manual on the stove, hopefully I'll be able to get the wiring straightened up. Will a 6 inch chimney be enough for the stove. The guy gave me six sections of 8 inch duravent. I already have a 6 inch chimney in my barn now. Any tricks of the trade on these furnaces please send them my way. Thanks.