A 3-inch pellet stove vertical vent system needs components that match the appliance, vent type, and installation plan; the products listed here are mostly vent fittings and wall-vent parts, not complete vertical vent kits. The Selkirk tee is suited to a horizontal-to-vertical transition, while the DuraVent cleanout tee supports access for maintenance. For wall exits, the 283870 kit and DuraVent stainless vent kit are better matches. Check your stove manual and local requirements before choosing parts.
| Product | Best suited for | What it provides |
|---|---|---|
| Selkirk 3-Inch Pellet Vent Tee/Cap | Changing from horizontal to vertical venting | Removable cleanout cap |
| DuraVent Pellet Vent Clean Tee | Installations needing a cleanout fitting | 3-inch clean tee |
| 283870 Through-The-Wall Kit | A specified horizontal wall-exit layout | Elbow, cap, bracket, and pipe sections |
| DuraVent 3PVL-KHA Vent Kit | Horizontal venting through a wall | Stainless vent kit components |
| DuraVent Wall Thimble With Air Intake | A wall pass-through with combined air intake | Thimble assembly with insulation ring |
Selkirk 3-Inch Pellet Vent Tee/Cap

Best for: Pellet stove installations that need to transition from a horizontal vent run to a vertical orientation. This 3-inch Type L pellet vent tee is listed as replacing the pipe connector and serving that transition.
The tee cap can be removed for inspection and cleanout, making it a practical choice when access to the vent interior is part of the planned installation. Its specific function makes it more directly relevant to a vertical vent arrangement than a wall thimble or horizontal-only kit.
Choose this if you need a tee and removable cap as part of a compatible vent system. Limitation: this is a tee fitting, not a complete vertical vent kit; the listing does not specify the additional pipe, supports, or termination parts required for a full installation.
DuraVent 3-Inch Pellet Vent Clean Tee

Best for: Buyers looking for a 3-inch DuraVent clean tee to include in a pellet vent layout. The supplied product information identifies it as a DuraVent 3PVL-TR clean tee.
A clean tee can be considered when the design needs a tee fitting that supports access for vent cleaning. The product is relevant to vertical vent planning because tees are often used where a vent route changes direction or where a cleanout point is needed, but the listing does not provide installation diagrams or additional included parts.
Choose this if the appliance and the rest of the vent system call for this specific 3PVL clean tee. Limitation: the supplied details do not state its included cap, dimensions beyond the 3-inch size, or whether it completes any particular vent configuration. Confirm the exact system match before purchasing.
283870 Through-The-Wall Pellet Stove Kit

Best for: Buyers planning a horizontal through-the-wall arrangement for a pellet or corn appliance. The stated contents include a 3-inch horizontal cap, a 3-inch 90-degree elbow, a 3-inch wall bracket, and five 3-inch one-foot sections.
The kit is listed for flue temperatures up to 570 degrees. Its included elbow and horizontal cap indicate a wall-exit configuration, so it is not automatically the right choice for a roof-terminating vertical system.
Choose this if the installation calls for the listed wall-exit components and the appliance manual permits them. Limitation: the product description does not establish that it contains all parts needed for every installation or a complete vertical route. Confirm the required vent layout, length, and system compatibility before buying.
DuraVent 3PVL-KHA Pellet Vent Kit

Best for: Buyers seeking a 3-inch vent kit for a horizontal wall exit. The listing says it is designed to horizontally vent a stove through a wall and is compatible with most pellet, corn, and multi-fuel stoves.
The stated construction is 24-gauge steel. These details make the kit relevant to pellet vent planning, but the horizontal design should not be confused with a complete vertical vent kit. A vertical installation may need different components and a route that follows the stove manufacturer’s instructions.
Choose this if your planned arrangement is a horizontal wall vent and the vent system is suitable for your appliance. Limitation: the supplied features do not list every included part or describe a vertical termination setup. Verify the box contents and required components before ordering.
DuraVent Pellet Vent Pro Wall Thimble

Best for: A wall pass-through where a 3-inch vent assembly with an outside combustion air intake is appropriate. The dual-function design combines exhaust venting and air intake in one wall thimble assembly.
The listed design can avoid cutting a separate exterior-wall opening for fresh air. An insulation ring is included to help prevent drafts and reduce air infiltration around the pipe passage. These features make it a useful wall component, rather than a stand-alone vertical vent kit.
Choose this if the appliance and installation plan call for this combined thimble and intake arrangement. Limitation: it is a wall thimble, not a complete vent run, and the product details do not specify all other parts needed to finish an installation.
Buying Guide: Choosing a 3-Inch Pellet Stove Vent System
Do you need a vertical kit or a wall-vent component?
Start by identifying where the vent will terminate. A vertical system routes vent pipe upward and typically requires a compatible combination of pipe sections, fittings, supports, and a termination component. A horizontal wall arrangement exits through an exterior wall. The products above include tees, a thimble, and wall-vent kits, so do not assume that any one item is a complete vertical kit.
Use the stove manufacturer’s venting instructions to establish the approved route and parts. A fitting that is useful in one layout may not suit another. If the plan changes from horizontal to vertical, confirm that the selected tee, pipe, and termination components are designed to work together.
How should you compare tees and cleanout access?
A tee fitting can help create a transition or access point, depending on the vent layout and component design. The Selkirk tee explicitly transitions from horizontal to vertical and has a removable cap for inspection and cleanout. The DuraVent product is identified as a clean tee, but the supplied information does not describe its cap or full configuration.
Before selecting a tee, compare the diameter, vent-system series, connection requirements, and cleanout access described by the manufacturer. Do not rely on diameter alone to establish that parts from different vent systems fit together.
What should you check before buying a wall kit?
Check the appliance type, vent diameter, intended wall route, and the parts listed in the package. The 283870 kit lists an elbow, horizontal cap, wall bracket, and five one-foot pipe sections. The DuraVent 3PVL-KHA listing describes horizontal wall venting and 24-gauge steel, but does not provide a full contents list in the supplied features.
A wall thimble is a pass-through component, not a substitute for the complete vent system. If outside combustion air is needed, verify how the stove manual specifies that air supply and whether the combined thimble arrangement is suitable.
How do temperature and material details affect the choice?
Use only vent components specified for the appliance and installation. The 283870 listing states a flue-temperature rating up to 570 degrees, and the DuraVent kit listing specifies 24-gauge steel. Those facts can help compare listed products, but they do not confirm suitability for every stove or vent route.
Check product documentation for the full system rating and installation requirements. Do not treat a single temperature or material specification as proof that a component can be combined with unrelated vent parts.
Which measurements and documents should you have ready?
- Stove make and model, along with its venting instructions.
- Required vent diameter and any specified vent system or component series.
- Planned route, including whether it exits through a wall or continues vertically.
- Approximate pipe lengths, fittings, and access needs for inspection and cleaning.
- Local building or fire-safety requirements that apply to the installation.
When the listed product details do not answer a compatibility question, consult the stove and vent manufacturers or a qualified installer. Avoid guessing about clearances, pipe length, connection fit, or termination placement.
Frequently Asked Questions
Is any product here a complete 3-inch vertical pellet stove vent kit?
The supplied product details do not establish that any listed item is a complete vertical vent kit. The Selkirk tee supports a horizontal-to-vertical transition, while the other products are described as wall-vent kits, a wall thimble, or a clean tee.
Which listed product is specifically described for a horizontal-to-vertical transition?
The Selkirk 3-inch Pellet Vent Tee/Cap is described as replacing the pipe connector and transitioning from horizontal to vertical orientation. Its cap is removable for inspection and cleanout.
Can a horizontal wall kit be used for a vertical installation?
Not based on the supplied descriptions alone. The 283870 kit and DuraVent 3PVL-KHA kit are described for horizontal wall venting. Follow the stove and vent manufacturers’ instructions to identify parts for a vertical route.
Does the DuraVent wall thimble include a separate air-intake opening?
The listed design combines exhaust venting and outside combustion air intake in one wall thimble assembly. The product details say this can eliminate the need for a separate exterior-wall opening for fresh air.
What does the 570-degree figure refer to?
The 283870 kit is listed as rated for flue temperatures up to 570 degrees. Confirm the appliance and system requirements in the product documentation before using it.
Can I mix pellet vent parts from different brands?
The supplied information does not confirm cross-brand compatibility. Check the vent manufacturers’ specifications and the stove manual before combining components.