Hi, I'm Ruck. I am new to the forum (1st post) but have been burning wood to heat for most of my life. I am currently almost finished building a small home (1206' +attached garage) on 2.5 rural acres. I am off grid (no grid tie) and will be heating entirely with wood. I found a great deal on a stove, but I have instal questions and hope you all can help me. I picked up a Dutchwest (Vermont Castings) model #2462. This XL unit is obviously way more BTU than my small house needs, but I only paid $500 and it's in brand new condition, except for the 2' section of ash lip that is broken off, hence the deep discount. It came with the manual, and even the broke off piece. I will provide information to help answer my questions: The #2462 has an oval outlet instead of round. The manual states I use 8" pipe. On venting pipe.com, I found the "Duravent #8870," 9-3/4 X 5-1/4 oval to round adapter. These dimensions don't seem to be EXACT match for my stove, but are VERY close & may be how I measured is wrong. The description actually states, " Use on Vermont Casting appliances with oval flue collars to adapt to round pipe." My question is- Is this the correct adapter? Here is a link to the part I am describing- http://www.ventingpipe.com/duravent...-round-double-wall-stovepipe-adapter/p1760875 Next concern/question- I had to go ahead and buy the Duravent ceiling support box because my carpenter needed to box in the ceiling opening so I can go forward with the drywall instal. My ceiling where the stove pipe will go through is open (no attic), 2"x10" framed. So all there is, is drywall, the 2"x10", insulation, roof sheeting, and composite roofing shingles. I bought this support box- http://www.ventingpipe.com/duravent...y-pipe-24-square-ceiling-support-box/p1762821 My question is- Is this the correct support box? I am not drywalled yet and the carpenter comes Tuesday. I can still return/exchange if needed. Moving on- I will have a wood mantle. I realize this means I cannot use singe wall pipe between the stove and the ceiling support box unless I intend to have the center of the stove pipe 17" inches away from the combustible wood mantle. No way I want the stove that far out from the wall. Besides, I am ok with any heat loss due to double wall inside the living space because the stove itself is rated for a house 2 times the size of mine and my climate is moderate. My question is- What would be the correct Duravent pipe to instal between the flue collar adapter and the ceiling support box? This question is of course entirely dependent upon whether or not I have bought the correct ceiling support box, and have the correct oval to round adapter in mind. I hope that I have provided enough information to assist me. Thank you. Edited to add: If anybody knows of a good source for these materials cheaper, I'd be interested. In the searching I did do, it seems that these are fair and competitive prices.