General requirements for the chimney of bricks : the base of the pipe , chimney device

first requirement: learn to lay the foundations of a brick chimney

masonry chimney brick always begins with the foundation, with its foundations.For its construction, you can use standard heat-resistant brick, stone or concrete.The height of the basement under the standard - more than 30 centimeters.Form - cuboid.If it was decided to make a chimney made of bricks with their hands, you need to approach this issue from the perspective of the designer and make accurate measurements.The width and length of the brick chimney pipes must be such that the ledge of the foundation does not exceed 15 cm beyond the barrel.

general scheme of the device can be seen in the illustration of the chimney

For the construction of the foundation is also needed is a grid of rods ∅ 12 and the concrete base B15, the distance between them should be 20 cm protective layer of the chimney -. 7 cm (in the case,if the foundation is not isolated) and 5 cm (isolated from moisture and used as a material in concrete 7.5).

Note!The base of the foundation brick chimney may have a location at 50 cm below the floor surface.This is possible only if the pipe is built into the room.If the outside - the basis of the foundation should be positioned below the freezing of the soil surface.

Installing brick chimney trunk

First of all you need to know the parameters of construction:

• Brick channels - 14/14 cm (or ½ × ½ brick, with seams);
• flue pipes of large cross-section - 14/20 cm (or 1/2 × 3/4 brick with seams), 20 × 27 cm (3/4 × 1 brick with seams), 20 × 20 cm;
• If the pipes have a rectangular or square shape, its sides will relate as 2: 3.

Construction, brick or masonry chimney should be such that there are no cavities and protrusions, that is absolutely flat.All irregularities may remain on the inner side of the pipe.Often recommend starting clutch, using a template - made of steel or wood.Increasing the masonry chimney, the pattern gradually raised and, having reached the top, just shoot.If, however, a brick chimney to a vertical deviation, line the inside will be built perpendicular to the line of the slope.

outer side of the trunk chimney should be smooth, not textured surface.For this purpose it is necessary to plaster.

Note!The inner side of the barrel should not be treated with plaster, because it can lead to a process pipe fire.

Posting a brick chimney through the ceiling

If the chimney is brick built separately from the bearing wall must be expansion joint between them.

If and brick chimney wall and the carrier are joined together, it is necessary to build a special-based beams overlap, the thickness of which must be strictly measured.Often it does not exceed the size of a half-brick.

Driving device chimney brick

Chimney brick consists of:

• Caps, which protects the pipe from the trunk of rain, snow and other precipitation.It has a structure of concrete, fixed iron fittings.It has a diameter several times more stem;

• nozzles.Used often concrete or tin;
• trunk.It has a height and wall thickness.All parameters are clearly defined in the SNP;

• Foundation - the foundation of the pipe attachment.

Note: Correct masonry in compliance with all safety rules will reduce the risk of house fires.Therefore, before proceeding to the construction of a brick chimney, you need to carefully read the instructions or consult a specialist.