Devices for heat recovery are ideal for use in houses, small offices and similar rooms - with the optimal exchange program: the exhaust air extracted from the toilet / bathroom and kitchen is discharged outside via the ventilation unit. Fresh outside air is drawn into the device through the pipe system. There, the heat of the exhaust air is transferred to the supply air via a heat exchanger and then returned to the living room and bedroom.
Ventilation systems with heat recovery offer users a high level of living comfort thanks to tempered and clean supply air. Important criteria are cleanliness, warming and humidity.
Systemair also has an eye on the future: the energy saving potential even exceeds future requirements.
In view of the many advantages, your customers' decision should not be "heat recovery yes or no", but only what type of heat recovery.
Perfect exchange, perfect indoor climate - the most important advantages of devices with heat recovery
A rotary heat exchanger ensures both heat and moisture recovery. The continuous rotary movement of the rotor enables constant heat transfer. In winter, the heat of the exhaust air is transferred to the cold, filtered outside air. In summer the reverse effect is used: the warm outside air is cooled by the cooler exhaust air and the heat stays outside. A rotor can achieve sensitive efficiency levels of up to 85 percent and has its strengths in a climate down to approx. -20 ° C. There he can work with maximum heat recovery without any frost protection. Thanks to the moisture recovery, the rotary heat exchanger also ensures perfect room humidity and an optimal room climate in every season - not too humid and not too dry.
A counterflow heat exchanger is used to transfer heat. The filtered supply air and the used exhaust air are completely separated from each other. Moisture is therefore not transferred, but must be removed. A countercurrent heat exchanger can best develop its high efficiency of up to 90 percent where the outside temperature does not or does not fall below its specific frost point (-3 ° C at 90% efficiency) for a short time. Then frost protection can be dispensed with and due to the mild climate (not colder than approx. -3 ° C), the interior climate does not become too dry even without moisture transfer. At temperatures below -3 ° C, additional frost protection must be provided. This can be done using a brine geothermal heat exchanger or an electrical preheater.
Anyone who creates living space in the form of an apartment building wants to offer users a comfortable home as well as protect their property from damage, in accordance with the energy saving laws. An apartment ventilation system with heat recovery is the best investment for this.
This is how central ventilation with heat recovery (heat recovery) works:
The cold outside air is filtered, receives the energy of the warm exhaust air in the heat exchanger and then travels to the apartment as supply air. The used exhaust air is discharged as exhaust air from the house, but not without having transferred the energy in the ventilation unit to the supply air. SAVE control, the highly intelligent control system from Systemair, monitors and optimizes the indoor air.
Anyone who buys or renovates a condominium is investing in the future. Home health, energy efficiency and smart home play an important role in this.
Topics that Systemair focuses on. And united in the solutions. Good arguments therefore speak for ventilation systems with heat recovery (heat recovery).
How does decentralized home ventilation with heat recovery (heat recovery) work?
The cold outside air is filtered, meets the warm exhaust air in the heat exchanger and then travels to the apartment as supply air. The used exhaust air is extracted as exhaust air from the apartment. SAVE control, the highly intelligent control system from Systemair, monitors and optimizes the indoor air.