Wall thimbles
A cheap galvanized thimble, on a listing that says 6 inches in the title and 7 inches in the bullets.
A cheap galvanized thimble, on a listing that says 6 inches in the title and 7 inches in the bullets.
Best for: A buyer who confirms the size and the code first.
Imperial lists a galvanized thimble, with a size conflict on the page.
A wall pass-through must match your chimney system, and only listed parts should go through a combustible wall. Read the installation manual, and check with your local inspector first.
The listing gives both. Confirm before ordering.
Check your code. This listing names no chimney system or standard.
This model is listed on Amazon.com, at ≈ $16 at the last reading. Listed is not the same as in stock: availability changes daily, and the buy box shows the live price.
Details checked on November 1, 2026.
A buyer who confirms the size and the code first.
Same shelf, nearest prices. We list only specifications every stove states — gaps compare nothing.
| Model | Price | Diameter | Weight |
|---|---|---|---|
| Imperial 4100673 Galvanized Flue Thimble | $16 | 6 in in the title, 7 in in the bullets | 4.5 lb |
| DuraVent 3PVL-WTS Pellet Vent Wall Thimble, 3 in | $80 | 3 in | 1.9 lb |
| DuraVent DuraTech 9643 Wall Thimble, 8 in | $171 | 8 in | 6.9 lb |
| DuraVent DuraPlus Wall Thimble, 8 in | $179 | 8 in | 7.5 lb |
At $16, it sits -91 % against the $171 median of the 5 models in this category published here.
Specifications: the manufacturer sheet for wood heating equipment and the matching Amazon product page. Prices, ratings and availability: read on Amazon.com from a New York address. Every figure on this page names its source.
A telescoping 7 inch DuraTech thimble for Class A pipe, that fits walls from 5-1/2 to 9-1/2 inches.
Best for: A 7 inch DuraTech chimney through a wall.
A wall thimble for 8 inch DuraPlus triple-wall chimney, for walls from 4-1/4 to 7-1/4 inches thick.
Best for: An 8 inch DuraPlus system.
An 8 inch DuraTech wall thimble, on a three-line listing with 5 ratings at 2.5 out of 5.
Best for: An 8 inch DuraTech system.
A 6 inch round wire brush, though its details table suggests metal pipes while its bullets say masonry only.
Best for: A budget brush for a masonry flue.
A US-made bolt-on cap that states the exact tile range it fits, with 21 ratings at 4.8 out of 5.
Best for: A masonry flue with a tile near 8 or 9 inches.
A bolt-on stainless cap for clay flue tile, made in the USA, with a lifetime limited warranty and 343 ratings at 4.5 out of 5.
Best for: A square clay-tile chimney.
The price beside each product is fetched as this page opens, and it is the only figure here that is current. Any amount written into the prose was read once, on the day that sentence was written, and nothing has refreshed it since.