If you decide that you will begin to heat the furnace from the adjacent room, and the design itself will have an external firebox, then you need to decide how to install such equipment. At the same time, it is important to know how to incorporate an external firebox into the wall. Many craftsmen are wondering what is needed for this, as well as what materials to use. The installation of the furnace in a bath with a remote firebox involves the conclusion of the latter in an adjacent room, this indicates that it will be necessary to make an opening in the wall. It is a wall that separates the rooms of the bath.
It should be noted that it would be most expedient to create such an opening by laying this part of the wall into a future project. This will turn out to be much easier compared to if you then have to cut a hole in the wall already erected. However, in a situation where after the construction the bathhouse was operated for some time, and then you decided to change the furnace, this option also has the right to life.
Choosing aperture size
If you will be installing the furnace in a bath with a remote firebox, it is important to choose the right size of the hole in the wall. This parameter will depend on several factors, among them the dimensions of the fuel channel of the furnace, the type of material at the base of the wall, as well as the rules for isolating the fuel channel, can be distinguished.
Dimensions of the fuel channel
If you are going to install the furnace in a bathhouse with an external firebox, it is important to pay special attention to the dimensions of the firebox, namely the height and width. These parameters act as the basic data that must be used in the process of work. The depth or length of the firebox will not affect the dimensions of the opening. However, when buying a steel heater with a remote firebox, it is necessary to take into account the thickness of the wall through which the firebox will be discharged. It is necessary to add 5 cm, which act as the distance between the vertical surface of the heater and the wall. Thus, the length of telescopic channels for different models of furnaces can vary from 160 to 300 millimeters.
The implementation of the output of the furnace through a concrete or brick wall
The installation of the furnace in a bath with a remote firebox involves the formation of an opening in a concrete or
brick wall, which will depend on the height and width of the firebox. For different furnaces, the dimensions of the opening can vary from 40 to 60 cm, with regard to height, and also within 25 to 50 cm, which is true for the width.
If the heating furnace equipment will be installed on the foundation, then it must also be taken into account. It is important to add about 10-20 millimeters to the dimensions of the furnace. This indicates that there should be a small distance between the wall and the box, because when heated, the material will expand.
Installing the furnace in a bath with a remote furnace provides for closing the gap by sealing with a heat-resistant elastic material. Asbestos cord, mineral or basalt wool can act as it. Among other things, if brick walls are proposed to be lined with clapboard, then approximately 10 cm or more should be stepped back from the firebox in all directions. The remaining open surface on both sides should be covered with a steel sheet, it is advisable to use stainless steel. First, in the canvas, you will need to make a cut for the furnace.
Extraction of the furnace through a wooden wall
If you are installing the oven in a bathhouse with a remote firebox, you may have to work with a wooden wall. It can be a blockhouse or a bar. Initially, it will be necessary to make an opening in the wall and lay it out with a brick. It is recommended to use certain calculations. If provided, it is necessary to add the dimensions of the firebox to the height of the base, and it is important to take into account the height of the legs. Then you should add the width of the gap to expand when heated. To the resulting figure, 25 cm of
masonry are added
, which will spread up and to both sides.
Do-it-yourself installation of the furnace in a bath with a portable fire chamber should be made taking into account fire safety rules. To do this, from the walls of the firebox to surfaces that are flammable, approximately 25 centimeters or more should remain. The remaining gap between the wooden wall and the brickwork must be filled with heat-resistant material.
Recommendations for work
It will be most correct to first install the furnace, then lay the bricks, and only then put the wall. The same technology must be used when it is necessary to completely revetment a steel heater. Initially, the whole furnace is laid over, only after a wooden partition is built.
The distance from the side wall to the wood-burning stove
When creating an opening, it is necessary to consider the safe distance from the side wall to the furnace equipment. If the wall is based on wood or sheathed with lining and is not protected by anything, then the step to the heater should be 500 millimeters. If there is a single insulation type of steel sheet, the thickness of which is 1 millimeter, then the distance can be reduced to 250 millimeters. This is important for the case when the insulation is made in the form of a non-combustible fibrous cement reinforcing sheet.
The installation of the furnace in a bath with a remote firebox, the price of which is from 5000 rubles, should be carried out at a distance from the side wall of 125 millimeters. This is true when double insulation is provided, which involves the use of a double sheet of heat-resistant material. Insulation sheets must not come in contact with the wall. Between them, it is important to leave a distance of 3 cm. For this, steel sleeves can be used as an intermediate support. Among other things, it is important to remember that the insulation must also not come into contact with the floor and ceiling.
Insulation of the space in front of the furnace
When an oven is installed in a bathhouse with a Thermofor portable firebox, it is important to isolate the floor in front of the heater, which is necessary for the case when it is made of wood. For insulation, use a steel sheet that is sized so that it captures the entire width of the fuel channel from the left and right sides by 10 centimeters. In front of the firebox door, the web should cover a distance of 40 centimeters. This insulation element is recommended to be laid not only for flammable substrates, but also for all others. This will protect the space in front of the furnace from sparks and fallen embers. Among other things, sometimes there is extraneous garbage when laying firewood.
Metal Shields
If you are thinking about how to install the stove in the bathhouse, the installation features described in this article will allow you to eliminate errors. Some furnaces are sold with a protective metal screen. When installing the furnace, it is able to replace the brickwork. For them, it is necessary to cut a hole in the wall, as is the case with a brick. There are floor and side screens that are designed to protect the floor and walls from possible fire. Whatever method was used when embedding the fuel channel into the wall, the most important condition is the need to comply with fire safety rules.
Features of the work on embedding the firebox
If you decide to start installing a bath furnace with an external firebox, it is important to consider all the nuances, since fire safety will depend on this, first of all. If the furnace is installed close to the wall, then the latter must be protected with minerite cladding, which is created on a metal frame. A thermal insulation layer should be located under this layer, as well as a vapor barrier material. After you manage to create a tunnel in the wall, you need to overlay it with ceramic brick. Between the masonry and the wall, it is necessary to lay a basalt insulation.
Thick wall oven installation
If you have to work with a furnace that has a shortened remote firebox, you can make a safe installation in the wall with a significant thickness. In the partition, it is necessary to create an opening, inside which a fireplace niche should be laid out, while decorative brick should be used. Above the brickwork, it is necessary to install a flat jumper created from a metal sheet. The thickness of the latter can vary from 8 to 10 millimeters. The walls adjacent to the furnace equipment should be insulated with a heat insulator, as well as vapor insulated. Do not forget about the decoration with mineralite. Above the stove to the ceiling, you must fix the screen, the size of which should be 1 X 1 meter. Between the protective screen and the ceiling, an air gap of 3 cm must be ensured.
The need to create a foundation
Do-it-yourself installation of a metal furnace in a bathhouse may require the creation of a foundation. If the mass of the furnace is not more than 700 kg, then it is not necessary to equip a separate base. However, if you plan to cover the structure, as well as provide it with a furnace screen, then the foundation is likely to be needed. If the weight is less than mentioned, then you can do with good lags and a massive board that you need to lay on the floor. If there is a foundation, its dimensions should be 15 cm larger on all sides compared with the dimensions of the furnace or screen itself. These requirements are especially important since safety is paramount.