How to make a weather vane for a chimney, increase draft and protect against strong gusts of wind

In bad weather, the wind blows into the chimney, causing reverse draft. As a result, with strong gusts, smoke comes out of the stove or boiler into the room. This problem is solved by installing a weather vane. It turns in the direction of the wind, blocking the blow into the chimney. It also significantly increases draft in calm weather and protects the chimney from precipitation. You can make such a device at home.

Materials:

• Galvanized sheet;
• blind rivets;
• steel strip 20x20 mm;
• rod 5 mm;
• M6 bolt;
• extended nut M6;
• ball from a bearing with a diameter of 5-6 mm.

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The process of making a chimney weather vane

A clamp is rolled up from galvanized steel to be placed on the chimney. Its edges are connected with rivets. A curved steel strip is pulled into the center of the clamp with rivets. A rod is welded to it, in this case a 5 mm welding electrode cleared of coating. This rod is needed to rotate the weather vane.

The weather vane itself is a knee, obtained by connecting three segments of tin. For structural rigidity, they are pulled together using a profile pipe curved from the same galvanized steel. A hole is made in it for the rod.

An extended M6 nut is screwed onto the top of the weather vane. The ball from the bearing is placed in it. Insert the rod into the nut with the ball. This hinge provides minimal friction, allowing the weather vane to rotate easily.

A triangular blade is attached to the weather vane cap itself with rivets. This shape allows the weather vane to always turn away from the wind. As a result, not only does the emission of smoke from the stove into the room during strong gusts prevent, but also the draft improves.

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