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My neighbor in Boise argued that a 12x12 clay flue liner is always better than a metal one, even for gas.
He said the clay handles condensation better long-term, but my supplier pushes stainless steel for everything. Which material do you guys trust more for a gas fireplace liner?
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james66118d ago
My buddy in Spokane had a clay liner crack after ten years from his high-efficiency gas furnace. The repair guy said the constant cool, wet exhaust was just too much for it. They swapped it for a 316L stainless steel liner, and it's been fine for five years now. I still see clay work great for wood stoves, but for modern gas, I lean toward the right stainless steel. It really seems to depend on the specific appliance and the flue gases it makes.
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christopherwilliams19d ago
Hot take: Clay for the win!
Oh man, this is a classic debate! Your neighbor in Boise is onto something. Clay liners are great for handling the acidic condensation from gas appliances, and they last forever. But a good stainless steel liner, the right grade for gas, is also a solid pick and way easier to install in an existing chimney. Honestly, both can work if they are the correct type and installed right. Your supplier probably pushes stainless because it's what they stock and it's faster for them to put in.
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