Metal-Fab 3 Inch to 8 Inch Type B Round Chimney Pipe Increaser
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Metal-Fab 3 Inch to 8 Inch Type B Round Chimney Pipe Increaser
$56
79
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$69.99
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$13.20
(19%)
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Product Details
Part of Metal-Fab's versatile Type B line, this Metal-Fab 3 Inch to 8 Inch Type B Chimney Pipe Increaser is exactly what you need if you want to increase your round vent diameter from three to eight inches.
Customer Q&A with Product Specialists
Jo A.
from asked:
I am looking for a 3" to 8" adapter for my pellet stove's existing chimney pipe. I found the Metal-Fab 3 Inch to 8 Inch Type B Round Chimney Pipe Increaser, but I'm unsure if Type B is suitable for pellet stoves. Can you confirm if this product will work, or if you have a compatible adapter for pellet stoves?
The Metal-Fab Type B chimney pipe is designed for solid fuel appliances and is not suitable for pellet stoves. We do carry the correct adapter for pellet stoves. Please consider the Duravent 3" PelletVentPro series of pellet venting.
Answered by:
Aaron D.
on Jan 20, 2026
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1 Questions and Answers
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Customer Reviews
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Metal-Fab 3 Inch to 8 Inch Type B Round Chimney Pipe Increaser
Yes, I would recommend this item.
By Steve V.
Aug 26, 2024
Great for extending chimney pipe!
This increaser worked perfectly for connecting my 3-inch pipe to an 8-inch chimney system. It felt sturdy and well-made, making the transition smooth and secure. A solid choice for anyone needing to adapt their chimney pipe size.
Yes, I would recommend this item.
By Debbie G.
May 02, 2024
Perfect Fit for My Chimney Project!
This increaser was exactly what I needed to transition from my existing 3-inch pipe to the 8-inch stove pipe. The quality is excellent and it fit perfectly, making my installation a breeze.
Yes, I would recommend this item.
By Lindsay F.
Perfect Fit for My Chimney Pipe Upgrade
This increaser was exactly what I needed to adapt my existing 3-inch chimney pipe to the new 8-inch cap. The Metal-Fab brand is solid and the fit was snug and secure, making installation a breeze. Highly recommend for anyone looking for a reliable chimney pipe transition.
Yes, I would recommend this item.
By Jeff B.
Exactly What I Needed for My Chimney Project
This increaser fit perfectly and made transitioning from my existing 3-inch pipe to the 8-inch pipe a breeze. It felt solid and well-made, which gives me confidence in its longevity.
Yes, I would recommend this item.
By Stacey D.
Perfect Fit for My Chimney Project
This increaser was exactly what I needed to transition my chimney pipe. It was easy to install and created a secure, leak-free connection. Highly recommend if you're doing a similar project!
Yes, I would recommend this item.
By Donald S.
Perfect Fit & Great Look for My Fireplace!
This chimney pipe increaser was exactly what I needed to connect my existing pipe to the new insert. The finish is really nice and blends in perfectly with my cherry fireplace. It was a straightforward installation and made the project look professional.
6
Reviews
100%
would recommend this to a friend
Showing 6 of
6 Customer Reviews
