Heater for Bath: Criteria

Before the construction of the bath must be posed of how to insulate it from the inside. It is important to approach the choice of insulant material, since it will be from him that the durability of the construction will depend on it, as well as safety and comfort when in pair. Tens of variations of insulation are offered on the market. From numerous sentences you need to choose a high-quality heat-insulating raw material that meets all building requirements.


The homogeneous wall in any structure is poorly delays heat, because it itself can absorb a part of thermal energy. To reduce heat losses, builder engineers began to create multilayer structures consisting of one, but from several materials that differ in density, porosity and other indicators. Multilayer walls are able to “maintain” temperature for a long time.

To create such a design, do not do without insulation. The right choice and error-free installation of thermal insulation materials from the inside bath or sauna will reduce heat loss and reduce fuel consumption. It should be known that there is not every insulation for insulation the steam. The best solution will be environmentally friendly products, resistant to high humidity and possessing bactericidal properties (preventing the occurrence and reproduction of mold).

The heat-insulating materials used should differ in the following properties:

  • Low thermal conductivity. The effectiveness of the material directly depends on this parameter.
  • The ability is not deformed during long-term operation.
  • “Combination” with previously selected construction and facing materials.
  • The presence of minimum moisture absorption indicators.
  • Compliance with sanitary and hygienic requirements and fire provisions.

In order not to be mistaken in the choice of thermal insulation material, you need to study the advantages and disadvantages of each type of insulation.

Views: Pros and Cons

For thermal insulation baths use a variety of materials in different aggregative states. These can be granulated products, fiber products, liquid and extrusion insulation, films.

Manufacturers offer the following thermal insulating raw materials:

  • Foaming – Material made from polypropylene laminated by aluminum film. For sale enters rolls. Can be used both for the bath and sauna. Different with durability (life of at least 50 years), ease, elasticity, environmentally friendly cost. With it, in the steam room, you can create the effect of “thermos”. The insulation does not distinguish harmful substances when heated. Among the advantages of the heat-insulator can also be noted the possibility of its recycling. There are no disadvantages.

  • Penoplex – extruded raw materials, ideal for frameworks or brick buildings. The material is distinguished by resistance to high humidity, ease of installation, durability. The minuses of fasteners include its flammability and the allocation of substances harmful to health during fire. Because of such features, before installing the insulation, it is recommended to process it with fire fighting agents.
  • Faith. Material is supplied to the market in rolls, mats or stoves. Products are made from fiberglass. Suitable for insulation of floors, walls and roofs. Eau returns to buyers non-combustible materials characterized by high heat and noise insulation. Lack of Isovera – bad confrontation of moisture. When water absorbing, the thermal insulation properties of raw materials deteriorate noticeably.
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  • The “running insulation” also includes products “TEKHNONIKOL” with the same name of the brand name. The company produces several types of materials that differ in their properties and specifications. Most thermal insulators are manufactured on the basis of non-combustible mineral (basalt) wool. All products offered by the manufacturer have high compressive strength, fire resistance, low vapor permeability.

In addition to the insulation, there are still many heat insulating materials for the bath. They are divided into several groups: non-combustible, natural and foil. Consider the pros and cons of each of these insulation.


When choosing thermal insulation products for baths, first of all, you need to pay attention to their fire resistance. There are several options for non-combustible materials.

  • Minvata. Raw materials can withstand high temperatures, due to which it is advisable to use when insulates the steam. However, wata has the ability to absorb evaporation and accumulate moisture. Because of this, its thermal insulation qualities become worse. To save the properties of the insulation, when it is laying it is necessary to mount a vapor insulation layer.
  • Basalt Vata (type of minvati). Basalt fibers are able to withstand the temperature of 700 degrees. Products are distinguished by high insulating qualities, durability, water-repellent and preservation of forms for long-term operation.

  • Ekwata – cellulosic raw materials, which is advisable to use to increase the heat insulation quality of the ceiling. Differs low thermal conductivity. The disadvantages include the ability to absorb moisture (the level of moisture absorption can reach 20%).
  • Ceramzit. With it, float insulation and ceiling. The material is made of clay and various additives. Such a thermal insulator “is afraid” moisture, so when it is laying it is necessary to take care of the additional layer of waterproofing.
  • Foamed glass – Perfect product for insulation of bath designs, sustainable high humidity. The minuses include a considerable price for products.

All the insulated insulators presented not only belong to non-combustible, but also safe, since they do not distinguish harmful substances when heated.


Natural or natural insulation found wide use in improving the heat insulation of bath structures. Felt, linen pass and moss people since ancient times used as an interventic thermal insulation material. These products are valuable because they provide natural air exchange. In addition, natural heat insulators have bactericidal properties, they practically do not rot.

To other advantages of natural raw materials include:

  • Environmental purity and harmlessness for people’s health;
  • long service life;
  • low cost;
  • Small thermal conductivity indicators.

However, natural insulation are not devoid of flaws. To their main minus include flammable. Of course, the material before installation can be previously treated with refractory compositions, but because of this, raw materials will not be quite environmentally friendly.

To one more minus include high risks of damage to the heat-insulator rodents and birds. In natural materials there may be insects that can “reduce no” the thermal insulation properties of the insulation. Also, some of the materials can cause serious allergic reactions.


To insulate the ceilings of saunas or baths, it is advisable to use reflective materials with aluminum foil. Thanks to the specialized coating, they impede the “leakage” of infrared rays. Usually, a folgized or reflective insulation is made of foamed polypropylene. Aluminum or metallized lavsan installed on one of its sides.

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Moisture-resistant foil insulation:

  • not fuel;
  • has vaporizolation properties;
  • durable.

The disadvantages include its high price and “fear” of power loads, which is why it is necessary to show extreme caution when working.

How to choose?

Different building materials can be selected as the main material when building a bath: Wood, blocks, bricks. It is worth noting that various materials should be used for insulation of different buildings. To the maximum “save” heat in the steam room, it is important to listen to the advice of professional builders.

For insulation of a broomage bath, it is recommended to purchase mineral watery plates, which should be seen wooden walls from the inside. Before starting work on the insulation of the structure, it is necessary to close the interferebral slots of packs or moss. For insulation of the floor of the tree, an extruded polystyrene can be used, and to take a foil reflective heat insulator for the ceiling.

For frame structures, the best solution will be the purchase of basalt wool slabs (the density of products must be more than 110 kg / m3). For the ceiling it is recommended to use fiberglass. For brick, concrete or block sauna, a heater from mineral fibers will be the perfect choice.

Tips for mounting

When the bath is built and selected thermal insulation material, you can start heat insulating. Handy insulation of structure – a complex, but quite real process. In confidence in their forces, you can abandon the services of professional builders.

Whatever the bath – wooden, brick or from blocks, the process of insulation will be the same. Before starting the insulation of the room, you need to think about vaporizolation. This is an important point, because even when choosing a moisture-proof insulation, the risks of its premature damage due to the accumulation and penetration of condensate through protective layers.

To prevent moisture penetration, it is recommended to use aluminum foil. It is important that the vaporizolation layer is monolithic. “Unified” surface can be created by gluing foil metallized tape.

Heat float

According to the laws of physics, warm air in the room always seeks up. Despite this, most of it is able to “lose” when contacting cold floors. In order to reduce thermal losses and accelerating the bath warming, it is important to choose a high-quality floor insulation and unmistakably make it laying.

When bleeding the bath, first of all, you need to start with heat insulation. Note that different types of structures require different insulation technology. If the bath is equipped with a solid floor, it is recommended to take Minvatu. The heat insulator should be deposited close to the rough floor surface, then you need to cover it with a waterproofing layer. After the work produced, you can mount the finishing floor.

If flowing floors are installed in the bath, the procedure will differ from the above. In this case, you need to dug a small pit (no more than half a meter) and for 5 centimeters to fill it with sand. The heat insulator is stacked on the rammed sand mass. The underlined insulation must be pouring with a mortar from cement and foam crumb. The process is completed by mounting the finishing finish on pre-laid wooden columns.

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Wall insulation stages

The sequence of thermal insulation walls of the bath and saunas is the same as when the insulation of other objects. The whole process consists of several stages.

  • Application of a wooden crate on the wall of the wall. It is important that the intermediate gap is less than the width of the heat insulator. As a thermal insulation material, you can choose Minvatu or basalt fiber.

  • After mounting the insulation, it is necessary to lay a layer of a foil paro insulation (reflective surface inside the sauna). The fixation of the material is made with thin deques. Thickened Kraft paper can also perform as a vaporizolator.
  • The final stage – installation of facing material.

It is worth noting that for better heat conservation, the bath must be insulated not only from the inside, but also outside. This applies not only to the walls, but also to the basement. For its insulation, the plates of foam or penplex are best suited. Thus, it is possible to maximize the placement from the external cold, which is especially important in winter. Due to high-quality external heat insulation, risks of mold and unpleasant odors inside the steam.

The fastest and easiest way to external insulation of the walls – Installation of ventilated facades. To do this, the surface of the wall should be covered with a protective waterproof layer, after which it is to trim with lining, siding or boards.

Heat insulation ceiling

Any steamer needs quality insulation. If on the path of warm air, aspiring up, there will be no heat-insulating layer, for heating the bath and maintaining the optimal temperature mode, there will be a lot of fuel in it. However, this is not the only problem. In the absence of insulation, condensate will be gradually accumulated on the ceiling surface, which will actually damage the ceiling overlap.

For the ceiling, you must necessarily give preference to non-combustible materials. Mineral wool or foil products suitable. If the attack is provided in the bath, it is necessary to install a vapor insulating layer of thin aluminum sheets above the heat insulator. Installation of the insulation is made under or above the rafyles. The laid insulating material also need to be covered with waterproofing sheath.

          If there is no attic in the pair, it is allowed to use clamzite as a heater. To do this, they need to fall asleep a previously laid vapor insulation surface. The layer of clay must be at least 25 cm.

          Thanks to the choice of high-quality thermal insulation materials and a properly performed external and interior decoration, not only a pleasant stay in the bath is provided, but also the safety of paired procedures. That is why the selection of building materials and work should be suitable with great responsibility.

          On the criteria for selecting the insulation for the bath, see the following video.

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