Best Wood Stove Pipe Oval-to-Round Adapters for Common Flue Sizes
The best wood stove pipe oval-to-round adapter is the one that matches your stove’s oval flue collar, round pipe diameter, and venting system. The LLPParts 6-inch adapter is a useful match when its listed oval dimensions fit; the Vermont Castings replacement is aimed at buyers seeking a specified 6-inch part. Options are also listed for 7- and 8-inch connections. Check measurements and whether your installation requires single- or double-wall components before choosing.
| Product | Listed size | Best suited for |
|---|---|---|
| LLPParts 6-Inch Adapter | 6-inch round; 7-1/2 x 3-1/2-inch oval | Buyers matching those stated dimensions |
| Imperial BM0037 | 6-inch | Buyers seeking a basic 6-inch adapter |
| Vermont Castings Replacement | 6-inch round | Buyers replacing part 000-1860 |
| LLPParts 7-Inch Adapter | 7-inch | Buyers needing a 7-inch connection |
| Imperial BM0040 | 8-inch | Buyers needing an 8-inch connector |
LLPParts 6-Inch Oval-To-Round Adapter
This black, 24-gauge adapter is designed for a wood stove with an oval flue collar connecting to 6-inch round pipe. The listed oval end measures 7-1/2 by 3-1/2 inches, and the adapter has an overall height of 9-1/4 inches. The round end is listed as 6-1/8 inches and accepts crimped 6-inch pipe.
Best for: Buyers whose stove collar and pipe match the stated dimensions. The product description says the oval side is crimped to fit inside the stove’s oval outlet. It also lists a one-year warranty. Limitation: Confirm the oval measurements and installation requirements; the listing does not specify whether this adapter is single-wall or double-wall.
Imperial BM0037 6-Inch Adapter
The Imperial BM0037 is listed as a black, 6-inch oval-to-round adapter. Its product information provides the model and nominal size but does not give oval-end dimensions, height, gauge, or wall construction.
Best for: Buyers who need a basic 6-inch option and can verify the model’s detailed fit before ordering. It is a reasonable comparison point for other 6-inch adapters in this list. Limitation: The available product details are limited, so do not rely on the nominal 6-inch size alone to confirm that the oval end fits your stove.
Vermont Castings 6-Inch Replacement Adapter
This single-wall adapter is identified as a compatible replacement for part 000-1860. The listed oval dimensions are 10-1/4 by 5-1/2 inches, and the round diameter is 6 inches. The seller also lists U.S.-based customer support available seven days a week.
Best for: Buyers replacing part 000-1860 or matching the larger oval dimensions stated in the listing. Its specific replacement-part reference makes it easier to compare than an adapter with no model information. Limitation: The oval size differs from the LLPParts 6-inch model, so check your stove collar rather than selecting by round diameter alone.
LLPParts 7-Inch Single-Wall Adapter
This black, 24-gauge product is listed as a single-wall, 7-inch wood stove pipe oval-to-round adapter and as a replacement for a Gray Metals OEM part. The product information also lists a one-year warranty, but does not provide oval-end measurements in the supplied details.
Best for: Buyers who need a 7-inch round connection and have verified the oval-end fit with the seller or product specifications. Choose this over the 6-inch options only when the stove and pipe require 7 inches. Limitation: The available features do not state the oval dimensions, so confirm them before purchase.
Imperial BM0040 8-Inch Connector
The Imperial BM0040 is listed as an 8-inch oval-to-round connector. The supplied product details describe it as easy to use and highly durable, and state that it is manufactured in China. No oval dimensions, material gauge, or wall type are provided.
Best for: Buyers whose stove and round pipe are specified for an 8-inch connection. Its stated diameter distinguishes it from the 6- and 7-inch products above. Limitation: Because key fit and construction details are not listed in the supplied information, verify the oval dimensions and venting-system requirements before choosing it.
Buying Guide: How To Choose An Oval-To-Round Adapter
Which round diameter do you need?
Start with the stove outlet and the pipe system specifications. These products are listed in 6-, 7-, and 8-inch sizes; they are not interchangeable based on appearance. Match the adapter’s round end to the required pipe diameter, and verify how the connector is intended to join the pipe.
How should you measure the oval collar?
Measure the stove’s oval outlet at its widest points and compare both dimensions with the adapter listing. For example, the LLPParts 6-inch model lists a 7-1/2 by 3-1/2-inch oval, while the Vermont Castings replacement lists 10-1/4 by 5-1/2 inches. A shared 6-inch round end does not mean the oval ends have the same fit.
Does wall type matter?
Yes. The Vermont Castings product is identified as single-wall, and the LLPParts 7-inch product is also described as single-wall. The supplied information does not identify the wall construction of every other option. Confirm the requirements of your stove and venting setup instead of assuming that an adapter is suitable based on diameter alone.
What details should you confirm before ordering?
- Round-pipe diameter and connection style.
- Oval collar width and height.
- Single-wall or double-wall requirements.
- Whether a replacement-part number matches your existing component.
- Adapter height and material details when clearance or assembly depends on them.
Frequently Asked Questions
What does an oval-to-round stove pipe adapter do?
It connects an oval stove flue collar to round stovepipe when the adapter’s dimensions and construction match the stove and venting system.
Can I choose an adapter by round diameter alone?
No. The oval end must also fit the stove collar, and the adapter must meet the venting system’s wall-type requirements.
Are all 6-inch adapters the same size?
No. The listed oval measurements vary: the LLPParts model states 7-1/2 by 3-1/2 inches, while the Vermont Castings replacement states 10-1/4 by 5-1/2 inches.
Which product is specifically listed as a replacement part?
The Vermont Castings adapter is listed as a compatible replacement for part 000-1860. The LLPParts products are described as replacements for Gray Metals OEM parts.
What if the adapter listing does not include oval dimensions?
Confirm the measurements with the seller or manufacturer before buying. Do not assume an adapter will fit based only on its round diameter.