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Heat Recovery Ventilators (HRVs) and Energy Recovery Ventilators (ERVs) may seem like siblings separated at birth, but they possess distinct characteristics that set them apart beneath the surface.
Using an ERV is generally more energy-efficient in such climates than an HRV. While both systems increase energy usage, an ERV’s operation consumes comparatively less energy, making it the better choice for sultry locations.
In colder climates, the choice between HRVs and ERVs is less clear-cut. Several factors come into play, including the leakiness of the building envelope, the ventilation rate, the size of the living space, and the occupants’ behavior.
The choice between HRVs and ERVs is even more nuanced in mixed climates. Ultimately, the best ventilation system for these climates will depend on individual circumstances and preferences.