The top of a metal flue
The rain caps we cover that have a checked Amazon.com listing.
| # | Model | Score | Price | Buy |
|---|---|---|---|---|
| 1 | AllFuel HST Rain Cap with Spark Arrestor, 6 inBest for: An AllFuel HST Class-A chimney. | — | ≈ $100 | Check price on Amazon: AllFuel HST Rain Cap with Spark Arrestor, 6 in |
| 2 | ECOPRO VENT Galvanized Chimney Cap, 5 inBest for: A roof vent. | — | ≈ $35 | Check price on Amazon: ECOPRO VENT Galvanized Chimney Cap, 5 in |
| 3 | LXFNDZW Stainless Chimney Cap, 3 inBest for: A small tent or vent pipe. | — | ≈ $20 | Check price on Amazon: LXFNDZW Stainless Chimney Cap, 3 in |
| 4 | Orsong Round Chimney Cap, 6 inBest for: A buyer who finds TOPFURN sold out. | — | ≈ $33 | Check price on Amazon: Orsong Round Chimney Cap, 6 in |
| 5 | TOPFURN Adjustable Chimney Cap, 6 inBest for: A single-wall 6 inch pipe. | — | ≈ $33 | Check price on Amazon: TOPFURN Adjustable Chimney Cap, 6 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 rain cap tops a round metal flue. The generic clamp-on caps here are 304 stainless with about 1 cm of adjustment, and the AllFuel HST cap names UL 103 HT and locks onto its own chimney. A listed chimney should end in its own listed cap.
A twist-lock rain cap with a spark arrestor, UL 103 HT certified according to the listing, for AllFuel HST pipe only.
Best for: An AllFuel HST Class-A chimney.
A galvanized 5 inch cap with a rubber EPDM gasket, more of a roof vent than a wood stove cap.
Best for: A roof vent.
A clamp-on 304 stainless cap sold in four sizes, with 161 ratings at 4.4 out of 5.
Best for: A single-wall 6 inch pipe.
A near twin of the TOPFURN cap, with 139 ratings at 4.4 out of 5.
Best for: A buyer who finds TOPFURN sold out.
A 4 inch stainless cap for 4.33 inch outside diameter pipe, with 73 ratings at 4.3 out of 5.
Best for: A 4 inch vent or small stove.
A 3 inch stainless cap with a mesh screen. Check that a pellet vent is really meant to take it.
Best for: A small tent or vent pipe.
Names UL 103 HT, for AllFuel HST pipe.
Sold in four sizes with a stated adjustment.
Use the one made for your chimney.
About 1 cm of adjustment on a clamp cap.
Yes, check it each season.
Use the listed cap on a listed chimney, and measure before you buy a generic one.
The column appears only if four appliances in five state the value. A half-empty column separates nobody.
| Model | Price | Material | Diameter |
|---|---|---|---|
| LXFNDZW Stainless Chimney Cap, 3 in | $20 | 304 stainless | 3 in |
| TyBasY Round Chimney Cap, 4 in | $23 | 304 stainless | — |
| Orsong Round Chimney Cap, 6 in | $33 | 304 stainless | 6 in |
| TOPFURN Adjustable Chimney Cap, 6 in | $33 | 304 stainless | 6 in; 7, 8 and 10 in also sold |
| ECOPRO VENT Galvanized Chimney Cap, 5 in | $35 | Galvanized steel | 5 in |
| AllFuel HST Rain Cap with Spark Arrestor, 6 in | $100 | 304 stainless | 6 in |
$35 – $100
2 models
ECOPRO VENT Galvanized Chimney Cap, 5 in, AllFuel HST Rain Cap with Spark Arrestor, 6 in
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.
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.