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Chimney Liner Pot-Hanger Cowls: Support the Liner & Cap the Pot
liner pot-hanger cowl: support the liner & cap the pot in one
Installing a flexible flue liner? A pot-hanger cowl suspends the liner from the chimney pot and weatherproofs the terminal—fast, tidy, and secure.
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Pot-hanger cowls combine termination, weather cap and bird guard with a built-in hanger to carry the liner—no top plates or clamps required.
What is a liner pot-hanger cowl?
- Integrated hanger: the liner is clamped to the cowl body, which carries the liner’s weight at the pot.
- Weather cap + mesh: keeps rain, birds and debris out while preserving free exit area.
- Neat finish: tidy termination without extra plates, straps or masonry work.
When to choose a pot-hanger vs a plate & clamp
| Scenario | Choose | Why |
|---|---|---|
| Standard pot with sound rim | Pot-Hanger Cowl | Fastest install, fewer parts, integrated weathering. |
| Odd pot shape / damaged rim | Plate & Clamp + Rain Cap | More adaptability to irregular terminals. |
| Severe wind/downdraught | Pot-Hanger + Anti-Downdraught Head | Adds wind management to the liner termination. |
Sizing & compatibility
Liner diameter
- Match the cowl’s spigot to your liner size (e.g., 125 mm, 150 mm, etc.).
- Use the correct adaptor/clamp supplied with the cowl for an airtight connection.
Pot size
- Measure the outside diameter (OD) of the chimney pot.
- Choose a cowl with the right strap/band range for a secure seat on the pot.
Materials
- Stainless steel for durability, resin/bitumen resistance and coastal sites.
- Galvanised for value on typical installations.
System types
For masonry chimneys + flexible liners. Not for twin-wall insulated systems or gas terminals unless specified.
Installation snapshot
- Drop and connect the flexible liner, ensuring correct direction of flow.
- Offer up the liner pot-hanger cowl and clamp the liner to the spigot.
- Seat the base on the pot and tension the strap & band evenly around the rim.
- Level the cap, confirm mesh is clear, and perform a clean test burn.
Pro Tip: First-light with a clean, hot ignition using
Hot Box® Firestarter.
Warming the column quickly helps establish reliable up-draught on a new liner.
Recommended options
Standard Pot-Hanger Cowl Pot-Hanger + Anti-Downdraught Head Pot-Hanger + Rain Cap
Safety & compliance: Follow liner manufacturer instructions for support and termination.
If the pot is damaged or access is risky, use a professional installer. Sweep and inspect seasonally; clear soot from the cowl mesh/cap.
FAQs
Do I still need a top plate with a pot-hanger cowl?
No—pot-hanger cowls carry the liner’s weight and provide weathering at the pot, replacing separate plate & clamp sets.
Can I add anti-downdraught features to a pot-hanger?
Yes. Choose a pot-hanger cowl with an anti-downdraught head if wind is a known issue.
What size should I order?
Match the cowl spigot to your liner diameter and the strap/band to your pot outside diameter. When in doubt, contact us with both measurements.
Will a pot-hanger work on any chimney?
They’re designed for masonry chimneys using flexible liners. For twin-wall systems or unusual terminals, ask before ordering.
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