Private houses require ventilation no less than urban high-rise buildings. Most widely used method supply ventilation in a private house Is natural ventilation. It does not require additional energy costs, and is inexpensive to install.
But the cheapest is not always the best. Natural supply or exhaust ventilation in a private house often fails.
Ventilation ducts in a private house and natural ventilation
Natural exhaust ventilation in a private house is vertical ventilation ducts that extend from the room and end above the roof of the house. The heated air from the rooms is lighter than the air outside, so it rises into the atmosphere.
It is impossible to artificially influence the intensity of gas ventilation in a private house. But it is very dependent on weather conditions.
Natural supply ventilation in a private house is organized through vents or valves installed in the walls, on the windows. The inflow rate is directly proportional to the outflow rate. That is, if it is warm outside, the system is practically inactive. The design air temperature for such systems is +5 degrees. Wind has a significant effect on traction.
Forced ventilation of a private house
The forced ventilation system in a private house works according to the inflow-blowout scheme. In this case, the heat obtained from the air is recovered. The system consists of several fans, a recuperator-heat exchanger, filters, and a control mechanism. Two ventilation ducts are mounted: for air intake and for supplying it to the mechanism. Exhaust air from the room is extracted and discharged into the atmosphere. Through another ventilation duct, clean air from the street is filtered, warmed up and directed into the room. In the cold season, both streams stay for some time in the recuperator, where the warm air gives the temperature to the cold one. The presence of a gas ventilation recuperator in a private house allows you to save up to a quarter of the energy used to heat the cottage.
If desired by the owner, the system is equipped with special filters, humidifier or dehumidifier, cooler. That is, the parameters of the air entering the cottage are completely controlled by its residents. Operating modes are set and supported automatically. It is possible to make the ventilation system in a private house even more economical by installing a heat pump - the heat exchanger is buried in the ground and takes heat from it.
