How to choose a gate for the chimney in the bath

Schieber for the chimney, especially its design

Good traction ensures a high efficiency operation of the furnace. With good traction fuel in the furnace is completely burnt and low consumption. With a bad-drawn wood does not burn out until the end, and there is even a risk of reverse thrust. In this article we will try to understand what the gate to the bath, what are the characteristics of its construction, and whether it is possible to do it yourself.

Schieber - a control rod, which provides fire safety stove heating. When burning wood in the kiln, chimneys partially overlap valves, and after complete combustion of firewood valve closes the chimney pipe completely. Schieber in the heating system exists to regulate traction. Modern equivalent gate is tyagostabilizator.

Types vane design

Special horizontal plate, which increases or decreases its position chimney pipe section - is a sliding gate. That decrease or increase the cross section of the chimney and is governed by the traction force. According to the rules fire, the chimney must not overlap completely sealed, so that the plate must be present a small opening. As a general rule, horizontal damper is designed for brick kilns, although sometimes it is installed in the steel chimney.

Double-walled, rotary slide valve or the plate is a securing axis. The position of the gate is controlled by the rotation. The only serious drawback but the rotary slide valve is that it is often otgoraet welding, with this rather unpleasant phenomenon is observed more and more frequently. The reason is, most likely, an unscrupulous attitude of some manufacturers for the quality of their products.

These two types of gate are fundamental differences in their structure. Horizontal gate for a bath, or on the flap chimney allows to regulate the passage of the chimney section. A choke or "hog" rotary slide valve allows only fully open or close the chimney, but not to regulate the passage of the chimney section. However, some bathhouse get the hand to fix the position of the gate by means of a chain.

How to choose the right gate for a bath for the already installed chimney

Schieber set on almost all kinds of fireplaces and stoves. The only exceptions are some of the new model, in which the combustion is regulated through controlling supply air by means of a deflector.

The best gas furnaces installed rotary slide valve, since it will eliminate the risk of complete closure of the chimney, consequently, the risk that the flame accidentally pop out through the ash box. But if you still set the shutter, then it must be ensured to constantly remain in the gap to 30-40% of the cross-sectional area of ​​the chimney.

In ovens with periodicity effect is also not advisable to install a rotary damper, since the flap in the closed state always passes steam at sacrifice. One should also remember the following point: many potters say that when the rotary slide valve is in the open position, the tube below it clean then it is very difficult.

Typically, the gate and the chimney is always sold together kit. If you produced all its own, the gate for the bath you can buy in any supermarket or the profile is available at the online store. The most important thing in this case - to make accurate measurements, in order to know what exactly you need a damper settings.

Schieber what material would be best

In most cases chimney valves are made of cast iron. The problem is that the iron - enough heavy material and a cast iron gate installation process rather complicated and time consuming. Besides iron gate set only in brick kilns.

Much more convenient and practical steel dampers. With a thickness of one millimeter they have a special mechanical density withstand temperatures up to 900 ° C and resistant to corrosion. In addition, the steel vanes are very smooth, they even made a special polished to a shine, and so black they did not settle. There is another important point: the steel gate has a sufficiently high thermal conductivity. The valve of this kind covers the chimney by 85%, allowing the carbon monoxide gas is completely out.

How to independently produce and install the damper in the chimney

As a rule, the damper for a chimney installed in the chimney even during its construction. And so it was convenient to use the damper, it is placed on the first meter of the chimney. To gate is not jammed in any case it is impossible to insulate the area on which it is located. We can say that the gate - this is the initial part of the chimney, and only after it begins directly pipe.

It is through gate to regulate cravings easier. In this there is absolutely nothing complicated, and deal with this tool by virtue of any person.

If you carry out the construction of a brick oven, the gate for the bath to be installed in that order. First you need to lay out the first row of brick chimney. Then, laying a second row it is required to cut a piece of the valve. Then, in one brick to be cut groove for the handle.

The most important thing in all of this process - the more carefully you can lay out the second brick row, so that it was not the slightest gap. If, however, cracks have formed, they must be filled with cement mortar. The chimney damper can be installed even without fixing, since it will be held due to the tight fit design.

How to carry out traction control by means of gate

Firewood burn completely, and black at the same time turns out very little only in the case when the link corresponds to the "alpha," i.e., in the range of 2.0-2.5 (for its calculation exists special formula). An important condition for the existence of a good traction is to provide air to the combustion zone.

It's important to remember the following point: if you close the gate, the baths will still leak carbon monoxide, moreover, you can not see the smoke and smell of burning. Carbon monoxide is very dangerous, because for a few hours can be completely poisoned by fumes. Gate can be closed only at the end of the furnace, when absolutely all the wood is completely burned out and lightly covered with ash.

Video "control rods":

Video "Homemade chimney damper":

Be careful, do not risk your health and your life! Take care of yourself!