We build an energy efficient house with our own hands. How to make an energy efficient house out of an ordinary house. Various light colors

An energy-saving house is built and equipped with appliances in such a way as to consume as little energy as possible and independently generate its own. This applies to everything: electricity, heating, warm water. Living in such an eco-house, you can save on utility bills, and even refuse some bills altogether. For example, from payment for electricity or heat.

Economy principles

The secret of eco-house energy saving lies in two factors: its design and the appliances used to provide energy. An energy-saving house is being built from special materials that have high thermal insulation characteristics. The very design of the building assumes the absence of "cold bridges" - places where heat escapes in traditional buildings, due to which the microclimate in the room is disturbed.

As for equipping the house, preference is given to alternative energy devices. For example, solar panels or windmills are used to generate electricity. For heating - heat pumps or boilers powered by solar panels. To save on lighting, preference is given to LED lamps. Some people do not even stop there: if they have a farm with livestock or poultry, they can cook on it or use it as fuel.

Benefits of an energy efficient home:

• quick development (from 2 to 6 months);
• no negative impact on the environment;
• living in an environmentally friendly and safe building;
• reduction of expenses or their complete absence for payment of utility bills;
• creation of a healthy microclimate for people living in it;
• autonomy and independence from the general networks of electricity, gas, water supply.

Flaws:

• the complexity of self-construction;
• the high cost of developer services and construction in general;
• large (but recouped) investments in alternative energy devices;
• difficulties at the stage of development of project documentation and project approval.

What are energy-saving houses built in Russia

The popularity of the Western method of building eco-houses is gaining momentum in Russia due to the harsh climate. Heating season in the Russian Federation is long: from autumn to spring. In some regions, heating is turned off only for the summer. Because of this, spending on space heating and water heating is unreasonably high. In Russia, the main priority when building an energy-saving house is to make it as warm as possible. By saving on heating alone, you will significantly reduce your utility bills.

Among Russian developers, a common way to build an energy-saving house is the use of sandwich panels (SIP). The technique of building from SIP panels came from Canada. With modernization for the conditions of our climate, the nuances of construction look like this:

• SIP-panel with a thickness of 164 mm replaces a two-meter brick wall with the same thermal insulation properties. In the warm season, sandwich panels keep the room cool, and in the cold - warm. SIP panels are twelve times warmer than brick and four times warmer than foam concrete.
• To avoid heat leakage through windows and frames, metal-plastic windows with double glazing.
• To increase the strength, glued structures are used ( wooden beams, valleys, Mauerlats).
• The frame of the house is wooden, the structure contains sandwich panels (oriented strand boards and expanded polystyrene).
• The foundation is shallow (monoplate with stiffeners).
• Ventilation is created on the principle of recuperation to return 25% of heat.

Basic principles for the construction of passive energy-saving houses:

• lack of "cold bridges";
• high tightness of structures;
• heat recovery from indoor air;
• earth heat exchangers for passive heating;
• energy permeability of double-glazed windows is not less than 50%;
• orientation of the building to the Sun for passive heating and the use of solar panels.

Alternative energy for an eco-house

Equipment from the field of alternative energy will make it possible to make an energy-saving house independent of common heating and electricity systems. All of the devices listed below can be bought or made by hand. For example, it is quite possible to make a solar battery from improvised means!

Useful home appliances:

• Electricity. Solar panels are usually installed on the roof of an eco-house (sunny side). They collect energy from the sun and turn it into electricity. So you can feed all the necessary Appliances without connecting to a common network or using generators (which run on expensive fuel). Another way to get electricity is to use wind energy. not suitable for all regions, but if it is windy enough in your place of residence, then using a windmill is an option.
• Heating. In addition to the fact that an energy-efficient house is built from materials with high thermal insulation properties, you can increase the heating with a heat pump. They use the energy of the earth, transferring heat inside the house. However, a heat pump is a rather noisy installation, and besides, you need to be able to install it correctly so that it works with sufficient efficiency and is safe. Perhaps it is better for you to opt for classic heating appliances, especially since the price of installing a heating system in a private house is becoming more affordable every year.
• Water heating. Electric energy-saving boilers can be powered by solar panels or windmills. It is also relevant to install solar collectors who will provide you hot water by heating the coolant.
• Economic lamps. The most profitable option is to replace all the lamps with LEDs. They last up to five years and consume twelve times less electricity than conventional incandescent bulbs! If the price scares you LED lamps(which pays off after three months of use), you can limit yourself to fluorescent ones. They are cheaper and also help save money.
• Saving on gas. Buying or constructing a plant for the production of your own biogas (from manure) allows you to completely abandon the traditional gas supply. Raw materials from five cows are capable of producing 20 cubic meters of gas / day.

How to make an energy efficient container house

Self-construction of an energy-saving house should start with simple buildings. The method of building from containers is actively used in summer cottages. To insulate the walls, you can resort to sheet material or spray a thermal insulation compound (polyurethane foam) directly onto the walls. A cladding is attached over the insulation. It is needed to protect the house from the effects of precipitation and ultraviolet rays.

For the northern regions, it is important to take care of additional insulation floors and roofs. To do this, they are sheathed with a vapor barrier film. The windows are covered with a special reflective coating. The technical arrangement of houses from containers requires the installation of a breather - a device that provides heat recovery.

Want to make your home energy efficient but don't know how? We will show you the most simple and right ways

Nowadays, many people want to reduce the cost of maintaining a house and make it energy efficient. First of all, on the Russian market, we are faced with the desire to install warm panoramic windows and additionally insulate the house so as not to freeze in the winter months. Someone prefers to reduce the cost of heating the house, someone wants to make the house environmentally friendly. Why might this be of interest to you?

Today, it is very easy to make your home energy efficient, and you can achieve the effect of energy saving using quite affordable tools:

• warm energy-saving windows;
• additional "preservative" insulation of the house and high-quality warm building materials;
• modern heating system, for example based on a heat pump;
• photovoltaic system, where the generated energy is used inside the house, including for heating.

Advantages of an energy efficient and passive house

An energy-efficient home in and of itself already makes a huge difference in your lifestyle. You do not need to constantly think about which heating mode to set in winter and how to air-condition in summer. You do not need to hide from the scorching sun or, conversely, move to rooms with southern windows in a frosty February blizzard. An energy-efficient house, like a passive house, independently creates a 100% comfortable microclimate, and this process is completely under your control and does not depend on the vagaries of nature.

Energy-saving Kaleva windows

Heating system in energy efficient home

When talking about modern heating systems in a house, we often use names such as “heat pump”, “underfloor heating”, “gas boiler”, “electric boiler”. But not all of them relate to energy saving systems. A heat pump provides an exceptional opportunity to make a house energy efficient and not spend a lot of money on heating it. At the same time, it is not necessary to install a warm floor to it; you can also install radiators. And if you connect the heat pump to a photovoltaic system (solar panels), energy will be generated for the pump. With this approach, your home can become independent.

One solar panel generates approximately 2 kW of power. To heat a house of 200 square meters, you will need an electric boiler with a capacity of about 20 kW or a heat pump with a nominal consumption of 4 kW. The cost of one solar panel is from 150 thousand to 350 thousand rubles.

Energy-saving Kaleva windows

This option is relevant for regions where there is no gas. In addition, according to Decree of the Government of the Russian Federation No. 334, you can only be allocated up to 15 kW of electricity, which is simply not enough for heating big house.

But it is not enough just to install a modern heating system and photovoltaic panels. It will be necessary to exclude "cold bridges" that may appear when using insufficiently high-quality windows and doors. Energy-saving windows will help you in this matter.

Windows in an energy efficient house

Energy-saving windows are very important for an energy-efficient home project, as in most cases good insulation floors, walls and roofs only properly selected and of high quality installed windows and the doors will save the owner from the appearance of "cold bridges".

Warm windows allow 99% to solve the main problem of panoramic glazing. Today you can put really big windows in your house and still keep it warm.

Energy-saving windows are good in any weather - in winter they do not allow cold to penetrate inside, and in summer they protect from heat, perfectly balancing energy efficiency and comfort. It is best to choose multifunctional glass for plastic windows. For example, warm windows with 40 mm double glazing and multifunctional iM-glass are 96% (!) more efficient than conventional 40 mm double glazing! It's all about the layer of silver ions, which allow the glass to work, in fact, like a mirror, while remaining perfectly transparent. Using such technologies, you get double protection from cold and heat.

Passive house: why it is better than usual

Different countries have decided to draw a line between an energy-saving and a passive house in different ways, especially when it comes to media publications. But there is an international standard, and it is determined by the heat energy utilization factor. So, a house with an E index of less than 110 kWh / m 2 / year is an ordinary house, less than 70 kW * h / m 2 / year is energy efficient; and with an indicator of less than 15 kWh / m 2 / year - passive, that is, practically not consuming energy from the outside.

At the same time, in Europe there is another indicator - EP, which determines the amount of electricity spent on hot water, electricity, electrical appliances and heating. According to this classification, EP less than 0.25 means class A, that is, a passive house; less than 0.5 - class B, economical; and less than 0.75 - class C, and this is an energy-saving house. The remaining indicators determine the standard house, and from 1.51 - the most energy-intensive.

Energy-saving Kaleva windows

First of all, the concept of an energy-efficient home is built on selected building materials, including doors, insulation and windows. The last one is amazing important element, since it is the most energy-efficient windows and doors that will prevent heat loss. Choosing warm windows, you can install panoramic glazing of any type and even turn the house into a kind of glass box. And all this without loss of comfort and warmth!

But it is not enough to buy just energy-efficient and warm windows. It is also necessary to consider how much solar energy enters the house and whether such windows allow air to pass through. It is important that the SHGC indicator, which is responsible for how much solar energy passes inside, was from 0.4 to 0.5. Windows with an indicator above 0.5 are suitable only for a harsh climate where there is no summer at all (for example, in Murmansk), and below 0.4 - only for those places where the summer is very hot (for example, in the Krasnodar Territory).

One of the few on the market takes into account all three factors - energy efficiency, light transmission and air exchange. And only such an approach can be considered professional.

To date, the problems of energy efficiency of housing in Russia are the most relevant. And it concerns not only the increased cost of electricity, but also the deterioration of the environmental situation caused by the greenhouse effect. About an energy-efficient residential building for the first time

Principles of building an energy efficient house

The main task of an energy efficient home is a reduction in energy costs, especially during the winter months.

The main principles of building a house are:

• 15 cm thermal insulation layer;

• the simple form of the building and roof;
• the use of ecological and warm materials;
• installation of mechanical ventilation;
• use of natural energy;
• orientation during the construction of the house to the south;
• exclusion of cold bridges;
• 100% tightness of the building.

Most of the Russian buildings of the same type have a natural one, which is inefficient and leads to large heat losses. And in the summer, this technology does not work at all, as in other things and in winter time year, when constant ventilation of the premises is necessary. Installing a special air recuperator will allow you to use already heated air to heat the incoming air.

The recuperation system provides up to 90% of heat due to air heating.

It is worth noting that the construction of a large house will lead to large heat losses.

It is worth focusing on the area for real living and their use. Because heating unused rooms and rooms is simply unacceptable. The construction of a house must be calculated for the exact number of people living in it. And the remaining rooms in the house will be heated by natural human heat and household appliances.

An energy-efficient house is usually built taking into account all climatic conditions and their use. Sunny days or windy days should be a hint for you to choose certain energy sources. And it is important to achieve tightness not only due to window and doorways, but also due to the use for and special double-sided plaster, reliable and high-quality and wind protection. It should also be remembered that the more, the greater the heat loss.

Accounting for the energy efficiency of the house at the design stage

When choosing a specific place for building a house, it is necessary to take into account the natural landscape. The selected terrain should be flat and without elevation changes. In general, any feature of the landscape can be used to increase efficiency. For example, a height difference will provide a low cost water supply.

You should also consider the position of the house relative to the sun in order to use solar lighting instead of electric.

Quality and should be provided from the very beginning of construction. Because energy efficiency without this type of insulation is impossible.

The canopy and the slope of the porch should be optimal in width so as not to create a shadow in natural light, and at the same time protect the building from overheating and protect the walls from rain. must be designed taking into account the mass of snow cover in winter. You also need to organize the correct gutters and roof insulation.

All these measures will reduce maintenance costs and increase the life of the house.

Measures to improve the energy efficiency of a wooden house

Increasing the energy efficiency of an already built house is quite real. Although, it is necessary to take into account the return of the house. If the house is in good condition and is not subject to demolition in a few years, it is quite possible to reconstruct it.

Energy losses can be reduced by modern materials and technologies. The first thing to start with is determining heat leaks. Cold bridges take away a significant part of the heat of the whole house. Therefore, it is very important to find such places in the tightness of walls, roofs, window and door openings.

Most often, problem areas can be found in the place of removal, basement and other structures. Be sure to insulate the attic and floors in the basement and cellar. In an apartment building, tambour doors bring a significant effect.

The presence also indicates depressurization of the room. Old or incorrectly installed windows significantly reduce the level of heat in the rooms. Sometimes only their replacement reduces heating costs several times.

It is also worth noting that all insulation material must be clean and environmentally friendly for human life. An excellent option would be to use warm plaster to further seal the insulation of all walls. This building material can perfectly cope with depressurized seams and various joints. Polyethylene can be used as an insulating material, mounting it under wooden paneling. And the thickness of this material must be at least 200 microns.

Nowadays, such houses are gaining more and more popularity in Russia and Belarus, as they need less heating costs and are well ventilated. We wish you to build the best economical and high-quality house!

ENERGY SAVING HOUSE: WHAT IT IS AND HOW IT DIFFERS FROM A PASSIVE HOUSE

The highest costs of operating a house in conditions middle lane and northern regions of Russia are spent on space heating. Significantly reduce these costs allows the introduction of technologies for the construction of energy-efficient and passive houses.

What is an energy efficient and passive house?

The terms "energy saving house", "energy efficient house" and "" are often used interchangeably. However, if you look at it, it becomes clear that there are noticeable differences between energy efficient and passive houses. A passive house not only does not consume energy, but sometimes even produces its surplus from alternative energy sources (solar panels, windmills). In an energy-efficient house, there is energy consumption, but it is minimal - heat is retained as much as possible, a ventilation system with heat recovery is used. Unfortunately, in the conditions of most Russian regions, the functioning of a completely passive house is not easy to achieve. The use of renewable energy sources is still small and expensive in our country. Therefore, there will still be some energy consumption and heating costs. Thus, for modern Russian conditions, it is relevant to talk about energy-efficient houses - with low and ultra-low consumption of heat and electricity. What is energy efficiency based on? Maximum energy efficiency is possible by saving heat. To do this, in an energy-efficient or passive house, it is important to take care of the thermal insulation of the room. The main heat consumption occurs through:
windows and doors,
"bridges of cold"
building walls.
Accordingly, to improve the energy efficiency of the house, you need to work out all these " weak spots". For this, two- or three-chamber double-glazed windows filled with an inert gas are installed. Installation must be carried out in such a way as to exclude gaps and poorly insulated areas. Walls, roof and floor are covered with a layer of high-quality thermal insulation materials. At the design stage, layouts are thought out to reduce heat losses, for example, a system of vestibules is provided.
For inflow fresh air in a practically sealed room, it is necessary to use a system forced ventilation. However, in conventional ventilation systems, heat is also removed from the room along with the exhaust air, which rapidly reduces the energy efficiency of the building. To prevent this from happening, heat recovery systems are used. The principle of their operation is as follows: from the air that is removed from the room, it is pre-collected thermal energy. It is then used to heat the air coming in from outside. In energy-efficient homes, heat recovery exceeds 75%. At the same time, the air exchange rate is achieved in the range of 0.3–0.4 of the volume of the room per hour.

Which house is correct to call energy-saving?

To date, in all developed countries, standards have been developed to determine the energy efficiency of a house. AT European countries developers are guided by the standards of energy-efficient houses prepared by the German Passive House Institute. According to these standards, in a passive house, energy costs per square meter heated premises should not exceed 15 kWh per year. Another important indicator— total energy consumption for all needs: hot water, heating, electricity costs, etc. In an energy-efficient house, according to European standards, these costs should be no more than 120 kWh per year per square meter. In the European Union, a significant number of private and apartment buildings, in Russia there are still very few such houses, but in last years The problem of energy efficiency is becoming more and more urgent, and many developers and customers of private houses want to transfer the European experience to our soil. In addition, a legislative reduction in energy consumption norms is planned, as well as the mandatory use of heat recovery systems in ventilation systems. In Russia, in 2003, the SNIP "Energy-Saving Thermal Protection of Buildings" was adopted, which distinguishes three classes of energy efficiency of houses: A, B and C. Class A - "Very high", is assigned to houses where the consumption of thermal energy is 51% or less of the normative values. Class B - “High”, is assigned to houses where heat losses are 10–50% lower than normative indicators. Class C - "Normal", is within small deviations from the standards. It should be noted that these classes are relevant for assessing the energy efficiency of new or reconstructed houses. Most of the already operated (moreover, operated for decades) apartment buildings have an energy efficiency class D (lower) or E (lower), or even less. Energy efficiency class of commissioning apartment building is given in the official conclusion of the state construction supervision in accordance with the requirements of 294-FZ. The index is calculated according to the following criteria: Energy efficiency class Energy consumption for heating (kWh / sq. m per year) A - up to 45
B-46–65
C-66–85
D-86–105
E-106–125
F-126–145
G - over 146

Is it possible to turn an ordinary house into an energy-saving one?

In low-efficiency buildings during the cold season, at least a third of the heat energy goes to "street heating". Heat loss is distributed approximately as follows:
walls - 40%,
door and window blocks - 20%,
roofing - 20%,
basement and inefficient ventilation system - 20%.
Therefore, improving the energy efficiency of an already built house is far from an idle issue for a huge number of Russian homeowners. The good news is that it is quite possible to solve this problem. To do this, you will need to work on a number of points:
It is possible to accurately determine the main areas that account for the main heat losses, using a thermal imager. Based on its results, additional thermal insulation of the building is carried out, the purpose of which is to create an inextricable contour of thermal insulation using a facade insulation system. The second point in improving the energy efficiency of the house is the replacement of window blocks with energy-saving double-glazed windows, thermal insulation of entrance doors, installation of closers on entrance doors in apartment buildings. Experts recommend equipping windows with heat-saving blinds, which also contribute to a significant reduction in energy costs for cooling rooms in the hot season. Another important step is the modernization of the heating system with the introduction of an automatic heat supply control system and heat recovery. As practice shows, although such works are costly, they can significantly reduce the financial costs of heating and pay off already in the coming heating seasons.

Not only savings

Energy-efficient homes are not only environmentally friendly and can save you a lot of money, but also provide the most comfortable living conditions. Ventilation system with constant air exchange, automated system heating systems create a healthy microclimate in the room and an optimal constant temperature. Many residents of energy-efficient homes note that after moving into their new house ARI began to hurt less in the autumn-winter periods, people with allergies and asthmatic reactions feel more comfortable. It is obvious that energy-efficient and passive houses are high-quality and economical housing that, not in words, but in deeds, meets the world's leading standards. Residents of Russian apartment buildings, unfortunately, for the most part, can only dream of such a thing. But if you are thinking about building a private house, then it may well become energy efficient or even energy passive. The domestic market already has enough relevant materials and technologies that are quite affordable for middle-class consumers. It is worth giving preference to them and living in a truly modern housing!

Problems of depletion of some resources, environmental degradation and ever-increasing bills for utilities closely intertwined. This is especially noticeable in private households. One of the solutions to these problems is the construction of energy-efficient houses. Often they are spoken of with the fashionable prefix “eco”.

Energy efficient houses - some terminology

An energy-efficient home involves the rational use of resources to maintain a comfortable microclimate in it. Energy losses are minimized, and everything consumed is used to the maximum. This is achieved by competently laying communications, installing high-tech equipment, and using heat-saving materials.

Do not confuse the terms "energy efficiency" and "energy saving". The first is a qualitative indicator, the second is a quantitative one. That is, energy saving at home is consumption of fewer resources to ensure the previous conditions in it.

A house where energy consumption approaches a few percent of the average values ​​in conventional buildings is called energy passive. It practically does not depend on the usual external energy sources. Priority is given to the use of renewable resources - wind energy, solar heat.

Residential building energy efficiency class

The volume of energy consumption in the house determines the class of its energy efficiency. The higher it is, the more comfortable the microclimate is formed in residential premises, the lower the utility bills.

Currently, the following energy efficiency classes are distinguished in Russia:

• A++, A+, A;
• B+, B;
• C+, C, C-;

The energy efficiency class of a residential building is determined on the basis of current legislation. The calculation is based on the annual consumption of resources in separate house. It is analyzed taking into account existing standards.

Energy audits can only be carried out by specialized enterprises that meet the requirements of federal legislation. Assigned to building energy efficiency class confirms the energy passport.

Fundamentals of Energy Efficiency

A well-functioning heating and ventilation system allows achieving high energy efficiency indicators. Not the last role is played by the quality of thermal insulation of the house.

More specifically, you should pay attention to the following:

• The choice of building materials with a low thermal conductivity.
• Installation of energy-saving windows.
• Good thermal insulation of walls, floor, ceiling. The formation of "cold bridges" should be prevented.
• powerful supply and exhaust ventilation rooms with recuperation.
• Efficient use of solar energy.
• Installation of an insulated foundation.

As a result of the use of efficient technologies, costs can be 15-20% more than when building typical house. However, the energy-efficient option is cheaper to operate by almost 60%.

How to build a passive house

To make a residential building energy-passive, you need to turn its outer walls into a heat-insulating shell. Inside it will be a qualitative redistribution of heat. This will allow not only to minimize energy consumption, but also to abandon heaters and air conditioners.

Insulated foundation according to Swedish technology

Heat loss through the base of the house can reach 15%. For this reason, without thermal insulation of the foundation, it is impossible to build a truly energy-saving house. In Russia and in many foreign countries it is performed according to the technology insulated Swedish stove ().

Such a slab is a shallow-depth monolithic reinforced concrete base laid on high-strength polystyrene foam. This insulation can withstand loads up to 20 tons per 1m2. Its deformation does not exceed 2%.

A water layer is laid on the reinforced polystyrene foam layer. Only then the base is poured with concrete. Such a “pie” absorbs heat well from the heated soil in summer, and slowly cools down in winter.

As a result, it is possible reduce the number of radiators heating on the ground floor of the house or do without them at all.

Building materials and wall insulation

One of the main criteria for choosing building materials for walls is their thermal conductivity. The lower it is, the more heat will be stored in the house. The most energy-efficient materials in this regard:

• logs;
• cellular concrete; sandwich panels;
• ceramic blocks;
• ceramic brick.

Technologies allow wide variation of these materials. frame construction. AT frame houses the walls are a “pie” of sheathing and insulation. Each such layer provides reliable heat conservation in the house.

One of the common wall insulation plans in frame houses:

1. A layer is laid between the bearing racks stone wool at least 20 cm thick.
2. Sheathe the frame. It can be OSB boards or other material that retains heat well.
3. On top of the skin, counter rails are attached for mounting the facade.
4. Between the counter-rails, another layer of thermal insulation is laid in the form of a 5-cm layer of glass wool.

Such walls for the most economical energy-passive houses - best option in terms of price and quality ratio.

Features of energy-saving windows

In an energy-passive house, the heat from the sun plays a significant role. That is why experts recommend placing most of the windows on the south side of the building. Some projects include the construction of entire glass galleries there. They play the role of thermal buffers.

Window structures are only energy-saving. They are distinguished from standard structures by:

• Triple sealing contour.
• More cameras in the profile.
• Low thermal conductivity - 0.6-0.7 W / m2K.
• The ability to pass into the premises up to 50% of solar heat.
• Maximum noise reduction coefficient.
• Use of argon or krypton to fill the space between the panes.
• The presence of at least two double-glazed windows.
• Small difference between the temperature on the glass surface and the surrounding surfaces. It rarely exceeds 4.2°C.

Energy saving windows plays a significant role in the formation of a comfortable microclimate in an efficient home. They contribute to a uniform distribution of heat without temperature asymmetry.

Organization of forced ventilation with heat recovery

The forced ventilation system is not only a comfortable microclimate in the house, but also a reduction in heat loss. The presence of appropriate equipment makes it possible to refuse to ventilate the rooms by traditionally opening windows. When installing a heat exchanger (heat exchanger), only dirty air leaves the room, and the heat remains in the house.

In practice, it looks like this:

1. Through the supply valve, cold air from the street enters the device.
2. There it passes through the filter system and enters the heat exchanger.
3. In the heat exchanger, cold air from the street and warm air from the house move towards each other. They are insulated with a special plate, so they do not mix.
4. Due to the temperature difference, heat from the exhaust stream is transferred to the supply stream.
5. The cooled air from the house is taken out to the street, and the heated street air passes through another filter and enters the rooms.

The cycle is constantly repeated, as a result of which the heat does not leave the building.

Heating system and its regulation

The heating system is an auxiliary tool if there are sealed windows, a warm water floor and high-quality wall insulation. In a mild winter, a house built according to efficient technologies may do without it altogether. However, in most regions, winters are harsh, so a heating system is needed.

• Heat pumps. They allow to receive heat from non-freezing layers of soil, air and water by cooling them. It is then transferred to the heating circuit of the building.
• Condensing gas boiler. Heat is obtained from condensate, which is formed during the combustion of gas.
• Infrared Energy Saving Panels. 15-20 minutes before a comfortable temperature, objects in the room are heated. Then they give off heat to the air for a long time. To obtain the desired effect, the panels can be turned on every hour for only 15 minutes.
• Stove-fireplace with a system of heat-accumulating caps.

For rational energy consumption heating equipment equipped with a variety of sensors, control systems.

Thus, an energy-efficient home is not only economical, but also safe for environment, human. However, it is difficult to build it on a turnkey basis with your own hands. Almost every stage of the work requires the involvement of experienced craftsmen.

Video: what to build an energy efficient house from