In which climate are HRVs mainly recommended for installation?

Heat Recovery Ventilators (HRVs) are primarily recommended for installation in cold climates due to their ability to preserve indoor heat while ventilating the space. In colder regions, maintaining indoor warmth is crucial, especially during the winter months when outdoor temperatures drop significantly. HRVs work by exchanging stale indoor air with fresh outdoor air, while recovering heat from the outgoing air and transferring it to the incoming air stream. This process reduces the energy needed to heat the incoming air, making homes more energy-efficient and comfortable.

In contrast, while HRVs can be beneficial in various climates, their efficiency and utility are maximized in colder climates where there's a significant temperature difference between the indoors and outdoors. In moderate or warm climates, other ventilation strategies may be more appropriate, and in tropical climates, there might be concerns regarding humidity that HRVs alone may not effectively address. Thus, the cold climate context aligns perfectly with the purpose and function of HRVs in enhancing energy efficiency while ensuring adequate ventilation.