Needing to replace a couple sections of my pellet vent and I was kind of shocked at how much the price went up. Bet that applies to all venting pipe, not just pellet vent, but then the cost of materials like stainless sheet has skyrocketed. Glad it's not something I need to replace on a regular basis. if planning on a new install and venting, better be sitting down when you price it. Gotten very expensive.
Seen prices go thru the roof a few years ago (2018 or 19) in the maple industry with stainless steel . Everything is stainless with maple and it seems once companies raise those prices they sure don’t drop them anytime soon .