Brick heating shield - features, device and design diagram

2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16

The heating shield is a fairly convenient device, and in some cases even necessary. However, it must be remembered that it has two such disadvantages as a small working surface, as well as a high working temperature (from 300 degrees). The first drawback is bad because the small surface does not allow heating a large room as a whole, and high temperatures are dangerous due to the likelihood of fire.

Reduce heat loss

Because technology has advanced quite a bit now, there are several ways to reduce heat loss.

The first way is to install a heating system with a liquid heat carrier that will constantly circulate, either with a pump or naturally. However, here you need to pay attention to such a fact as the temperature of the water. Since if the liquid freezes, then the pipes will simply break through, and this will completely disable the entire system.

The second way is just the installation of a stove or stove with a heating shield. Heat loss in this case is reduced due to the fact that the combustion products willexit through the chimney, which is mounted directly into the brickwork.

Shield Benefits

The disadvantages of the shield have already been indicated, now it is worth considering what advantages the design of the heating and cooking stove has. She also has a heating shield. For example, if a cast-iron stove is used in the house, and there is an addition to it in the form of a three-channel single-turn shield with bottom heating, then you can reap the following benefits:

• heating will be faster than using a simple brick oven;
• heat in the room will be maintained for a longer period;
• you can connect kitchen burners to such a device, for example.

Design variations

Heating shields are classified according to many criteria. One of them is the thickness of the walls of the structure.

1. The first option is laying everything in half a brick. Such a thickness is considered large and is relevant only if the plate will be used for a long time. In addition, this thickness is considered sufficient to protect the room from fire.
2. The quarter-brick slab is the lighter option. The peculiarity lies in the fact that the structure will heat up faster, but at the same time cool down faster. In addition, it is much more important to follow the masonry rules here, as well as to comply with all fire safety rules as much as possible, since the walls will be thinner. Another requirement is stylingshield on the foundation with waterproofing. The oven itself, in turn, must be equipped with a metal casing.

Devices may also differ in the type of construction and installation features of each of them.

1. Cap type. The design feature is that there is one or two brick surfaces, which are interconnected by a channel. It is important to note here that in such a brick heating shield, the inlet and outlet of the chimney must be mounted lower than the upper plane of the brick. The bottom line is that hot air will go up, where it will remain until it cools down, and when this happens, it will be forced into the chimney by a warmer volatile substance.
2. The second type is called channel. The peculiarity lies in the fact that the chimney must be mounted in the form of a coiled channel, in which the pipe diameter is the same, along the entire length of the channel. The chimney of this type can be both horizontal and vertical. It is important that partitions are installed in it in any case. In addition, jumpers are additionally installed. In the summer, for example, with their help, you can cut off the half that is unnecessary for heating and concentrate all the heat, for example, on the stove.

It is worth adding that for a duct-type heating shield that works in tandem with a fireplace, installation of jumpers is not needed. Since the main task is to heat the room, it makes no sense to cut off any parts. The last variety in the configuration of the shield. It can be straight orcorner. The first type is used most often, but the second type is able to give more heat and save more space in the room.

Channel-type masonry materials

In order to lay the masonry of such a channel-type device, you will need the following materials:

• 309 full-bodied ceramic red bricks (quantity may vary depending on the selected ordering scheme);
• you will need three valves with dimensions of 130x130 mm;
• necessary to have three cleaning doors with dimensions of 130x140 mm;
• exhaust grille with valve has dimensions of 150x200 mm;
• 4 buckets of sand and 6 buckets of clay, as well as 2 m2 roofing material for waterproofing.

Recommendations for laying the shield

It is important to understand that the laying of heating and cooking shields must follow all the rules of the furnace business. This means that you will first need to pour the foundation, which will not be connected to the foundation of the house. It should be at least 150 mm higher than half the house, and on top of it it is necessary to lay a layer of waterproofing, for this you need a roofing material. After that, you can start laying the shield in accordance with the order that was chosen.

Tips on how to lay masonry

In order to properly lay out a brick shield, you must adhere to the following rule - the thickness of the seam is a maximum of 3 mm. Another rule is the maximum layer thickness of 5 mm. After one row of bricks is laid out, it is necessary to check it for correctness horizontally and vertically. For this, a building level and a plumb line are usually used. Another important requirement is that the excess solution must be removed, and inside every 3-4 rows of masonry, the surface must be wiped with a damp cloth.

Lightweight design

Since not everyone may be familiar with the furnace business, a simpler version of the ordering of the heating shield is proposed. The frame of such equipment will be assembled in a ready-made metal case, which is additionally lined with asbestos plywood or another layer of metal sheets.

The light version is very different in that you do not have to equip the foundation. This type of shield can be installed on a wooden floor. The only thing that needs to be done is to first lay two layers of felt on the floor, which are first impregnated with clay mortar. Next, you need to install the frame of the shield, which is welded from the corners, exactly vertically. The support for the structure must be very stable, for which it is recommended to make 4 legs. Next comes the bricklaying. The first row is simply laid flat on the base. After that, the masonry continues until it reaches the first layer of facing material. After laying the first row, the lining for the second is mounted and the second is laid out. This continues until the shield reaches the desired parameters.

Approximate parametersthe following:

• 730mm long x 340mm wide;
• height is usually about 1930 mm, and the total weight of the structure is about 650 kg;
• height of the legs for the frame must be at least 65 mm;
• the level of the first row of cladding should be at a distance of 625 mm.

What attachments does the guard use with

It is worth understanding for which devices the heating shield will come in handy, and which ones do not need it at all.

• A shield made of brick material will be very effective if a fireplace or a fireplace stove, the body of which is made of metal, is used to heat the room.
• Almost never used without a heating structure, such a stove as the Swedish Zhirnova. In appearance, it quite strongly resembles a fireplace, but at the same time it additionally has a hob. In terms of functions, it is still more suitable for a fireplace, since the amount of heat for cooking is quite small.

The last type of oven that the shield will work well with is the Feringer device. Most often, such devices are used in steam rooms or baths. In general, we can conclude that it is quite simple to make this device with your own hands, but it is far from suitable for everyone.