Best Stove Pipe Cap (2026): 5 Caps and Covers

Compare the picks

Specifications are manufacturer rated, collected 22 October 2026. Two of these are chimney caps for the top of the flue; three are covers for unused flue holes in the wall.

How we scored them

Each pick is scored on performance, build, value, safety and warranty. Performance here covers stated fit and the job the product is made for: caps are judged on coverage and weather protection, covers on the hole sizes they fit. Build covers the stated material and construction, value weighs what the listing includes, safety points come only from named features such as screens, and warranty points come only from a stated term with a concrete duration.

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.

Best stove pipe cap: caps vs covers

Know which opening you are buying for. A chimney cap sits on top of the flue pipe outside the house: the CLLOMAGY and Orsong are this kind, with screens that keep rain, leaves, snow and small animals out of the chimney. A flue-hole cover plugs an unused flue opening in the wall: the Irnyso and Hasanbar covers are this kind, with adjustable anchors that fit holes from 4 to 8 inches. Buying a cap for a wall hole, or a cover for a pipe top, is the most common mistake in this category, so match the product type to the opening first and the size second.

Chimney caps: size and fit

The CLLOMAGY fits 8 inch outside-diameter chimney flue pipe and single-wall fireplace pipes; its listing states it is not compatible with double-wall pipes. The Orsong fits 6 inch pipe with an adjustable hoop that takes up a 1 cm (0.4 inch) diameter range, and it ships with a pair of gloves for the install. Measure the outside diameter of the flue before ordering, and check whether the pipe is single or double wall. See double wall vs triple wall chimney pipe for the difference.

Chimney caps: material and screen

The CLLOMAGY is galvanized steel, powder-coated against rust, with screws and pre-drilled holes to hold it against wind. The Orsong is 304 stainless steel with a higher screen the listing says improves combustion and smoke evacuation. Both have screens; neither listing states a warranty term. For the material question in general, see stainless vs galvanized chimney cap and chimney caps for rainy climates.

Flue-hole covers: fit and finish

All three covers fit 4 to 8 inch flue holes with adjustable anchors: the Hasanbar listing names 5, 6, 7 and 8 inch openings, and both Irnyso covers state 4 to 8 inches. The Hasanbar is 9.5 by 9.5 by 0.2 inches and 12 oz; the black Irnyso is 8.1 oz; the white Irnyso is 9.4 inches in diameter, 1.5 inches thick and 8.4 oz. Finishes are black steel on the Hasanbar and black Irnyso, almond on the white Irnyso, all embossed and decorated. Note the white Irnyso’s spec table says black while its title and bullets say white and almond; this guide follows the title and bullets.

Chimney caps: wind and weather

A cap that blows off in the first storm is no cap at all. The CLLOMAGY answers with screws and pre-drilled holes to double-tighten it to the pipe, and its listing calls out windstorms by name. Its galvanized steel is stated waterproof, heatproof and rust-proof for harsh outdoor weather. The Orsong answers with 304 stainless steel, which the listing selects for longevity, and a tight hoop fit. Neither listing states a warranty term, so the weather claims rest on the materials alone.

What the listings leave out

No listing here states a warranty term or a safety certification, so those scores sit at zero and the rankings rest on fit, build and value. The Orsong does not state double-wall compatibility either way, while the CLLOMAGY rules it out explicitly. The white Irnyso’s spec table says black against its own title and bullets, which this guide resolves in favor of the title. And per this site’s rules, none of these listings describe installation steps: for anything above the roofline or involving the stove itself, bring in a certified pro rather than working from a product page.

When to replace a cap

Replace the cap when the screen clogs, rusts through, or goes missing: the CLLOMAGY listing frames its job as keeping leaves, rain, snow and small animals out of the chimney, and the Orsong listing warns that rainwater pouring in leads to moisture and mould inside the chimney. A missing cap also invites nesting season. If the old cap is galvanized and rusting, the 304 stainless Orsong is the longer-lived replacement; if the flue is 8 inch single-wall, the CLLOMAGY matches it.

Around the Woodpile

• Cap the flue before the burning season: a screen keeps out the leaves and animals that plug a chimney over summer.
• Cover unused wall flue holes to block cold air; the Hasanbar listing notes this cuts drafts and helps heating efficiency.
• Check the cap after windstorms; the CLLOMAGY screws and pre-drilled holes are there to keep it on the pipe.
• Keep the screen clear of creosote and debris so smoke evacuates freely; a blocked cap smokes back into the room.
• For chimney work above the roofline, or anything involving the stove installation itself, bring in a certified pro.

Frequently Asked Questions

What is the difference between a chimney cap and a flue-hole cover?

A chimney cap sits on top of the flue pipe outside and keeps weather and animals out; the CLLOMAGY and Orsong are caps. A flue-hole cover plugs an unused flue opening in the wall; the Irnyso and Hasanbar covers are covers with adjustable anchors for 4 to 8 inch holes. Buy the type that matches your opening.

What size cap do I need?

Measure the outside diameter of the flue pipe. The CLLOMAGY fits 8 inch outside-diameter pipe, and the Orsong fits 6 inch pipe with an adjustable hoop covering a 0.4 inch range. For wall holes, all three covers adjust to fit 4 to 8 inch openings.

Do these caps fit double-wall pipe?

The CLLOMAGY listing states it is not compatible with double-wall pipes; it is made for single-wall flue and fireplace pipes. The Orsong listing does not state double-wall compatibility. Check the listing against your pipe type before ordering.

Do chimney caps keep animals out?

That is what the screens are for. The CLLOMAGY screen keeps leaves, rain, snow and small animals from getting down into the chimney, and the Orsong has a higher screen for the same job. A cap with a screen is the standard defense against nesting season.

Are flue-hole covers only decorative?

Mostly, but not entirely. The Hasanbar listing says its cover blocks cold air from entering the house, which reduces energy use, and both Irnyso covers are embossed and decorated to look intentional on the wall. Pick the finish that suits the room: black steel or almond.

Will a flue-hole cover fit an irregular hole?

That is what the adjustable anchors are for. The black Irnyso listing says manual adjustment adapts it to smooth or irregular flue holes, and the Hasanbar anchors push outward and bend to fit the opening. All three covers adjust across the 4 to 8 inch range, so measure the hole and pick the finish you like.

Related guides

See the stove accessories hub, double wall vs triple wall chimney pipe, stainless vs galvanized chimney cap, chimney caps for rainy climates and stove pipe sealant.