In my house under construction, an air heating system has already been introduced, I heat the object with the help of computers that generate heat. Excess energy from them is carried away by powerful fans throughout the house.
These installations have disadvantages, they make a lot of noise and are not regulated in terms of heat release, because the primary task of the installations is to perform calculations for the cryptocurrency system (mining). And the released heat energy into the air is a by-product.
Heating itself with heated air through a special installation and further distribution to rooms and rooms using air ducts is not new. It has long been used in the United States.
How it all works:
At the time of building a house, they make a thermal calculation (thermal conductivity of walls, ceilings, windows, doors, etc.) and only after that large-diameter pipelines are laid in the house.
In America, houses are mainly built using frame technology and air ducts can be secretly laid in such buildings. Usually in floors.
Further, this entire air duct system is connected to an air preparation unit in which a powerful fan is installed and there is a liquid heat exchanger, these elements are enough to heat the house.
In addition, in addition, it is possible to install an indoor and outdoor air conditioning unit to cool the premises in hot summer. The air mass humidification system is also connected. Which is very much in demand in dry rooms.
Naturally, all these units are controlled by electronics, temperature and humidity sensors are placed in the rooms and the system can self-regulate according to certain specified parameters.
You need to understand that this installation requires a heat source, namely hot water 60-70 ° C, heated by an additional installation that runs on any type of fuel (electricity, gas, firewood, etc.)
Important nuances:
- Often, warm air escapes above or below windows and doors, a kind of heat curtain that prevents condensation from forming at the heat-cold interface.
- It is important to correctly calculate the cross-section of the air ducts so that when a large volume of air is supplied to the heated rooms there is no noise from the movement of the air mass
- These units can produce not only space heating, but also ventilation of such "odorous" areas as a toilet, a kitchen. At the same time, the air from them does not go back into the circulation of the installation.
- Typically, fresh air is supplied by an additional system: recuperator(air handling unit), working in conjunction with an air heating system.
- The heating and air circulation unit has a filter for cleaning fresh and circulating air, which requires periodic replacement.
Why can an air heating system be cheaper than a conventional heating system?
This system will replace many engineering solutions in the house, for example the following:
- Heating (underfloor heating, batteries, piping, boiler equipment)
- Ventilation (air ducts, fans, recuperator)
- Room humidification (humidifiers)
- Air conditioning system (one unit per room)
Each of the above systems is installed by different specialists. Accordingly, each installer tries to make the most of the object. When installing an air heating system, there is no leapfrog with people, one team or one installer is responsible. Which will lower the final price.
According to some estimates, if you mount all of the above systems separately, with good materials, reliable specialists and make an air system with the same elements, the benefit can be up to 500,000 rubles. And the installation itself of "American" heating with all the equipment will be from one million rubles for a house of 120-150 square meters. In addition, you can only heat the premises, and later add an air conditioner, a humidifier, a recuperator, and filtration to the installation. That saves money at the initial stage of construction.
Cons of an air heating system
- This system should be installed at the time of construction of the house box, best of all if it is a frame.
- Air ducts have a large volume, so they will eat up the usable area of the house.
- Complicated temperature control of individual rooms, if they are made by a diffuser, then there is a high probability of noise formation.
- Periodic cleaning of air ducts from dust and replacement of filter elements is required
This system is neither bad nor good; it exists and is very popular among Americans. Therefore, you need to understand that there are nuances everywhere and there is no ideal home heating system.