Energy recovery ventilation pre-treats fresh air with exhaust air to reduce heating and cooling energy consumption, while maintaining a comfortable humidity level. It can be installed or upgraded, and reduces energy costs and the need for large systems. Heating and cooling companies can install and maintain systems, and other measures can be used for even better climate control.
Energy recovery ventilation is a process of saving energy by pre-treating fresh air with air from the exhaust system to consume less energy in heating and cooling. This allows for regular air exchange to maintain a cool environment whilst reducing energy costs. Better control of both temperature and humidity may be possible with an energy recovery ventilation system. You can install new systems or upgrade existing ones to make them more environmentally friendly.
In cold weather, air from indoor areas will be warm from the heating system and typically contain some moisture. It passes through a heat exchanger and pre-treats the outside air to heat it and transfer moisture, maintaining a comfortable humidity level. This air still needs heating, but it is warmer than the fresh air from outside. The vented air from the heating system will be cold, as it loses heat through the heat exchanger.
When indoor air needs cooling due to heat, the same heat exchanger system transfers heat from the incoming outdoor air to the outgoing cold air. It will also transfer moisture, preventing indoor humidity from getting too high in the heat of summer. The air leaving the structures in the warm months will be warm due to the heat it absorbs from the outside air in the heat exchanger.
The use of energy recovery ventilation directly reduces heating and cooling costs by bringing the air closer to the required temperature before it even enters a structure. Additionally, an energy recovery ventilation system usually needs to be smaller, requiring less energy to install and operate. Maintaining a constant humidity can also be beneficial. In winter, the heat often makes facilities very dry and can lead to chapped skin and lips, eczema and other forms of skin irritation. Moisture transfer keeps the environment comfortable. In the summer, when indoor air may become too humid, heat and humidity exchange controls humidity levels to keep them within a reasonable range.
Heating and cooling companies can install and maintain energy recovery ventilation systems, including retrofits of older and brand new systems. The level of efficiency available varies depending on the climate and the system. Other measures can be used for even better climate control, including insulated windows to prevent heat loss, strategic design to keep core areas of a structure at a stable temperature, and similar passive temperature control techniques.
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