Wall thimbles
A 3 inch wall thimble for DuraVent’s PelletVent system, with no text on the listing beyond the table.
A 3 inch wall thimble for DuraVent’s PelletVent system, with no text on the listing beyond the table.
Best for: A pellet stove vent through a wall.
The title names a 3PVL-WTS pellet vent thimble, 3 inches. The table adds a 9 by 9 inch size.
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.
No. It is a 3 inch part.
DuraVent PelletVent, per the model name.
This model is listed on Amazon.com, at ≈ $80 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 pellet stove vent through a wall.
Same shelf, nearest prices. We list only specifications every stove states — gaps compare nothing.
| Model | Price | Diameter | Weight |
|---|---|---|---|
| DuraVent 3PVL-WTS Pellet Vent Wall Thimble, 3 in | $80 | 3 in | 1.9 lb |
| Imperial 4100673 Galvanized Flue Thimble | $16 | 6 in in the title, 7 in in the bullets | 4.5 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 $80, it sits -53 % 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.
Not a sleeve but a blanking cap — an expanding funnel with insulation, for a chimney opening that is no longer used.
Best for: An old chimney breast with a second opening nobody uses, where a bare hole is drafty and ugly
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.
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.
The 8 inch round version of the Midwest Hearth wire brush for masonry flues.
Best for: An 8 inch round masonry flue.
A long-established 8 inch square brush in oil-tempered spring wire, made in the USA.
Best for: A square flue swept from the roof.
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.
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.