Chimney cowl with wind vane on two ball bearings Ø150, acid-resistant steel (inox), up to 650 °C

Chimney cowl for stable draught in wind

A self-adjusting chimney cowl with a wind vane is intended to protect the flue gas outlet from wind influence. The wind vane turns the cowl with its back to the wind, and the special recesses create negative pressure and help improve the draught in the chimney.

Main advantages

• Automatic turning according to the wind: the wind vane always turns the cowl with its back to the wind, so the wind does not interfere with the flue gas outlet and does not push smoke back into the chimney.
• Improved draught: the special recesses on the cowl create negative pressure and help improve flue gas extraction.
• Resistant material: the cowl is made of acid-resistant stainless steel 1.4404 with a sheet thickness of 0.6 mm.
• High temperature resistance: it is suitable for use up to 650 °C.
• Two ball bearings: the cowl rotates on two maintenance-free ball bearings with balls in oil, which are located in the cowl stabilizer and are therefore resistant to by-products of combustion.
• Optional base: the cowl also works without a base, and a version with a 250 mm square plate with 4 holes and a ring with clamps is also available.

Use and installation

The cowl is suitable for ventilation chimneys and chimneys for burning wood, pellets, sawdust, gas or heating oil. It is not suitable for chimneys in which coal or pea coal is burned.

It is installed on the chimney with a suitable 150 mm connection. The cowl also works without a base; if you need mounting with a plate, you can select the version with a base on the product page. When choosing, take into account the connection diameter, the type of chimney and the type of fuel.

Frequently asked questions

Does the cowl prevent smoke from returning due to wind?

Yes. The wind vane turns the cowl with its back to the wind, so the wind does not interfere with the flue gas outlet and does not push smoke back into the chimney.

Is the cowl suitable for a coal chimney?

No. The cowl is not suitable for chimneys in which coal or pea coal is burned.

Do I need a base?

The cowl also works without a base. A version with a base is also available, which has a 250 mm square plate with 4 holes and a ring with clamps.

Conclusion

The chimney cowl Ø150 is a suitable choice for chimneys where you want to reduce the influence of wind on flue gas extraction and improve draught. It is made of acid-resistant stainless steel, resistant up to 650 °C and has a 2-year warranty.