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The best stove pipe dampers for 2026

Flue dampers sold on Amazon.com

The flue dampers we cover that have a checked Amazon.com listing.

#ModelScorePriceBuy
1DYVBXS Stove Pipe Damper Section, 6 inBest for: A connector with no drilling.—≈ $50Check price on Amazon: DYVBXS Stove Pipe Damper Section, 6 in
2Flueblocker Wool Flue Plug, 5 to 6 in RoundBest for: An unused fireplace or stove flue.—≈ $35Check price on Amazon: Flueblocker Wool Flue Plug, 5 to 6 in Round
3Imperial BM0052-A Cast Iron Damper, 7 inBest for: A 7 inch stove pipe.—≈ $12Check price on Amazon: Imperial BM0052-A Cast Iron Damper, 7 in
4showingo BM0051-A Cast Iron Damper, 6 inBest for: A 6 inch single-wall connector.—≈ $16Check price on Amazon: showingo BM0051-A Cast Iron Damper, 6 in
5XiHu BM0053-A Cast Iron Damper, 8 inBest for: An 8 inch connector.—≈ $23Check price on Amazon: XiHu BM0053-A Cast Iron Damper, 8 in

Prices are indicative and were read on Amazon.com; the button shows the current one. If we earn a commission, it does not change the order.

A damper is a turning plate that slows the flue. Modern EPA stoves often should not have one, so read your manual first. Four here are cast iron or stainless for 6 to 8 inch pipe, and the fifth is a wool plug for flues not in use. Closing a damper too far on a live fire can push CO into the room.

These parts, set out figure by figure

  1. DYVBXS Stove Pipe Damper Section, 6 in

    DYVBXS Stove Pipe Damper Section, 6 in

    A short pipe section with a built-in damper and published end sizes, with 5 ratings.

    Ends
    5.95 in and 6.06 in
    Height
    4.84 in
    Material
    Stainless with powder coat
    Weight
    1.94 lb
    Amazon reference
    B0FXH4P6WB
    EAN
    0700937860172
    • Publishes end sizes
    • Damper section, no drilling
    • Three times a cast damper

    Best for: A connector with no drilling.

    ≈ $50
    Check price on Amazon
  2. Flueblocker Wool Flue Plug, 5 to 6 in Round

    Flueblocker Wool Flue Plug, 5 to 6 in Round

    A wool plug that stops cold drafts through an unused flue; it must come out before any fire.

    Fits
    5 to 6 in round flues
    Material
    100% Herdwick wool
    Size
    7.5 x 7.5 x 1 in
    Origin
    Made in England
    Amazon reference
    B09FYGB37F
    EAN
    0852586007047
    • Works with a broken damper
    • Natural wool
    • Must be removed before lighting

    Best for: An unused fireplace or stove flue.

    ≈ $35
    Check price on Amazon
  3. showingo BM0051-A Cast Iron Damper, 6 in

    showingo BM0051-A Cast Iron Damper, 6 in

    A cast iron damper for 6 inch single-wall pipe, that warns you never to close it fully.

    Diameter
    6 in
    Material
    Cast iron, steel handle
    Rating
    Up to 600 °F stated
    Weight
    13.8 oz
    Lock
    Spring-loaded pin
    Amazon reference
    B0FDKFCY29
    EAN
    0785079196013
    • About $16 for a 6 in damper
    • Spring lock
    • 600 °F is low for a flue

    Best for: A 6 inch single-wall connector.

    ≈ $16
    Check price on Amazon
  4. Imperial BM0052-A Cast Iron Damper, 7 in

    Imperial BM0052-A Cast Iron Damper, 7 in

    A plain 7 inch cast iron damper from a stove pipe maker, with 63 ratings at 4.7 out of 5.

    Diameter
    7 in
    Material
    Cast iron
    Handle
    Nickeled spring
    Amazon reference
    B00467EGFI
    EAN
    0006346724013
    • 63 ratings at 4.7 out of 5
    • Cheap
    • 7 in only

    Best for: A 7 inch stove pipe.

    ≈ $12
    Check price on Amazon

For which need, in flue dampers

A 6 inch pipe

A cast iron damper for 6 inch single-wall pipe, with a spring handle.

showingo BM0051-A Cast Iron Damper, 6 in

A 7 inch pipe

A plain cast iron part with 63 ratings at 4.7.

Imperial BM0052-A Cast Iron Damper, 7 in

A cold, unused flue

A wool plug that stops drafts.

Flueblocker Wool Flue Plug, 5 to 6 in Round

For whom, within flue dampers

An older stove that overdrafts
A damper can slow a strong chimney, if the manual allows.
An unused fireplace
A plug stops drafts, and must come out before any fire.

What each advantage costs, on flue dampers

Control against risk
A damper adds control, and closing it too far creates a CO risk.
Plug against damper
A plug is for an unused flue only.

Before buying flue dampers

Does my EPA stove need a damper?

Usually not. Check the manual.

Can a damper be fully closed?

Not on a live fire. Listings warn against it.

How do I fit one?

Most need a hole drilled through the pipe. The DYVBXS section does not.

What to remember about flue dampers

Read the stove manual first, and leave the damper out if it says so.

A quick look at flue dampers

  • Most affordable here: Imperial BM0052-A Cast Iron Damper, 7 in, at $12.
  • Diameter: 6 to 8 in, on 3 of the 5 models.

Flue dampers in one table

The column appears only if four appliances in five state the value. A half-empty column separates nobody.

Where the output figures come from

Specifications: manufacturer sheets for wood heating equipment and the matching Amazon product pages. Prices and availability: read on Amazon.com from a New York address. Every figure in this table names its source.

Most recent revision in this category: November 14, 2026.

How we assess flue dampers

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.