A 6-inch flue collar connects or finishes a vent opening, but the right part depends on the vent system: a cast-iron stove collar, a decorative trim ring, and a chimney storm collar serve different purposes. The Total Hearth Store 40246 is a replacement option for listed circulator brands; the US Stove 40292A is a genuine cast-iron part. For finishing or roof-sealing tasks, consider the trim ring or the system-specific storm collars below.
| Product | Best suited for | Key distinction |
|---|---|---|
| Total Hearth Store 40246 | Listed circulator replacements | Cast iron; identified for several stove brands |
| US Stove Company 40292A | US Stove replacement needs | Heavy cast iron; genuine USSC part |
| 6-Inch 24-Gauge Trim Ring | Finishing a wall or chimney opening | Decorative ring, not a stove collar |
| AllFuel HST Storm Collar | AllFuel HST Class-A chimney systems | Seals above flashing; brand-specific |
| Water-Tite 81602 | Type B vent roof penetration | Galvanized storm collar for water sealing |
Total Hearth Store 40246 Cast-Iron Flue Collar
This 40246 replacement collar is made of cast iron and is identified for Ashley, Breckwell, US Stove, and Vogelzang circulators. It is the best fit among these options for shoppers seeking a replacement stove collar associated with those named brands and part number.
- Best for: Owners checking a circulator’s parts list for 40246.
- Why it was selected: The listing names multiple stove brands and specifies cast-iron construction.
- Caution: Brand names alone do not establish fit for every model. Confirm the appliance model and required part number before ordering.
Choose this if your stove documentation or existing part identifies 40246. Do not treat it as a roof storm collar or a decorative trim ring; those parts are designed for different locations and jobs.
US Stove Company 40292A Cast-Iron Flue Collar
The US Stove Company 40292A is described as a genuine USSC part made from heavy cast iron. It is best for a buyer whose appliance parts information specifically calls for 40292A and who wants a stove replacement component rather than a roof or wall trim piece.
- Best for: Matching a US Stove repair or replacement requirement for part 40292A.
- Why it was selected: The listing identifies it as a genuine USSC component and states its heavy cast-iron material.
- Caution: The supplied product details do not list compatible models or dimensions. Verify both against the stove’s parts documentation.
This is not interchangeable with the 40246 simply because both are cast-iron flue collars. Compare the exact part number first. If your appliance specifies 40246, select a product identified for that number instead.
6-Inch 24-Gauge Black Stove Pipe Trim Ring
This product is a black stovepipe collar trim ring, not a cast-iron appliance flue collar. It has a 6-inch inner diameter and a 9-1/2-inch outer diameter, and is made from 24-gauge black stovepipe with a matte finish. The listing identifies BM0094 and 0366716 as compatible part numbers.
- Best for: Finishing the visible area where a flue pipe meets a wall or chimney opening.
- Why it was selected: Its stated dimensions, material, and replacement numbers help distinguish it from functional stove and roof components.
- Caution: A trim ring is for decorative finishing; it should not be substituted for a stove’s cast-iron collar or a roof storm collar.
Choose this when the job is to cover or finish an opening around a flue pipe. Check the opening and listed replacement number before buying. Its 6-inch inner diameter does not, by itself, prove that it fits every 6-inch pipe installation.
AllFuel HST 6-Inch Stainless-Steel Storm Collar
This 304 stainless-steel storm collar is specified for AllFuel HST Class-A double-wall insulated chimney pipe. It installs above the flashing to help seal the roof installation against water. It is best for a homeowner or installer assembling that named chimney system, not for replacing a stove’s flue collar.
- Best for: An AllFuel HST Class-A chimney installation requiring a 6-inch storm collar.
- Why it was selected: The listing states the compatible chimney system, 304 stainless-steel construction, and roof-sealing purpose.
- Caution: The listing explicitly says it cannot be connected to other brands of Class-A chimney.
Choose this only after confirming the chimney brand and system. Its corrosion-resistant material is a stated feature, but material quality does not make it universally compatible with other chimney manufacturers.
Water-Tite 81602 Type B Vent Storm Collar
The Water-Tite 81602 is a storm collar for Type B vent applications. The listing describes 28-gauge G-90 ASTM-A653 galvanized steel and says the collar provides a waterproof seal where the vent stack passes through the roof. It is installed and sealed directly above the flashing.
- Best for: A Type B vent roof penetration that calls for this storm-collar style.
- Why it was selected: It has a clearly stated roof-water-sealing purpose and specified galvanized-steel construction.
- Caution: Type B vent hardware is not automatically suitable for a wood-stove chimney or another vent system. Confirm the vent type and required dimensions.
Choose this for a compatible Type B vent roof detail, not as a replacement for a cast-iron stove collar. The product details provided do not specify a diameter, so confirm the required size before purchase.
Buying Guide: How to Choose a 6-Inch Flue Collar
What job does the collar need to do?
Start by identifying the location and purpose of the part. A stove flue collar belongs to the appliance and connects with its flue pipe. A trim ring finishes the visible edge around a wall or chimney opening. A storm collar is installed above roof flashing to help prevent water from entering around a chimney or vent. These parts are not interchangeable just because a listing mentions a 6-inch size.
If you are replacing a stove component, use the appliance’s model and parts list to identify the correct part number. If you are working at the roof, identify the vent or chimney system first. A decorative ring cannot replace the appliance collar, and a roof storm collar is not a stove connector.
Does the part number match your appliance?
For stove repairs, matching the part number is often more useful than relying on a general description such as “6-inch collar.” The products here identify different numbers: 40246 and 40292A are cast-iron replacement collars, while the trim-ring listing identifies BM0094 and 0366716. Do not assume one number fits the same appliance as another.
Check the manufacturer’s parts documentation, the existing component, and the product description. If those references do not agree, pause and seek confirmation from the appliance maker or a qualified service professional rather than guessing from appearance.
How should you compare the materials?
The two stove replacement listings specify cast iron. The trim ring is described as 24-gauge black stovepipe with a matte finish. The AllFuel HST storm collar is 304 stainless steel, while the Water-Tite collar is 28-gauge galvanized steel. These materials are specified for different component types, so material alone does not establish that a part can serve another function.
Use the material and construction details to compare products within the correct category. For example, verify the prescribed replacement material for a stove part rather than choosing a roof collar because it is stainless steel.
Why does chimney or vent brand matter?
Chimney components may be designed for a particular pipe system. The AllFuel HST listing specifically limits compatibility to AllFuel HST Class-A double-wall insulated chimney pipe and says it cannot be connected to other brands of Class-A chimney. Follow that restriction. For the Water-Tite product, confirm that the installation uses the Type B vent application stated in its listing.
A nominal 6-inch diameter is not sufficient evidence of cross-brand compatibility. Check the exact system designation and the manufacturer’s installation instructions for the vent, flashing, and collar.
What measurements should you verify?
Confirm the dimensions that matter for the installation, not just the diameter mentioned in a product title. The trim ring listing gives a 6-inch inner diameter and a 9-1/2-inch outer diameter. The Water-Tite product details supplied here do not give a diameter, so the required size should be confirmed before ordering. For replacement stove collars, check the specified part number and any required dimensions in the appliance documentation.
Also check how the component fits with adjacent parts. A ring that is meant to cover a wall opening has a different purpose from a collar that seals above flashing or connects to a stove outlet.
When should you ask for professional help?
Ask a qualified installer or service professional if you cannot identify the vent type, chimney brand, appliance model, or required replacement part. Roof penetrations and solid-fuel venting require correct system components and installation details. Do not rely on a product title or a matching diameter alone to resolve an uncertain fit.
Frequently Asked Questions
Is every 6-inch flue collar interchangeable?
No. A 6-inch label may describe a nominal size, but the part’s function, part number, appliance model, vent type, and system brand can all affect fit. A stove collar, decorative trim ring, and storm collar perform different jobs.
What is the difference between a flue collar and a storm collar?
A stove flue collar is an appliance component associated with the flue-pipe connection. A storm collar is installed above roof flashing to help seal around a chimney or vent and keep water out.
Can I use the 6-inch trim ring as a stove replacement collar?
No. The listed trim ring is intended to finish the area where a flue pipe meets a wall or chimney opening. It is not identified as a cast-iron stove replacement collar.
Can the AllFuel HST storm collar fit another brand of Class-A chimney?
The product listing says it cannot be connected to other brands of Class-A chimney. Use it only with the specified AllFuel HST system after confirming the installation requirements.
How do I identify the correct replacement stove collar?
Check the appliance model and parts list for the required part number. Compare that number with the product listing, and verify dimensions or other fit details with the appliance documentation before ordering.