What is the primary benefit of using HRVs compared to ERVs?

The primary benefit of using Heat Recovery Ventilators (HRVs) compared to Energy Recovery Ventilators (ERVs) is that HRVs are ideal for cold climates. This is due to their design, which effectively transfers heat from the outgoing stale air to the incoming fresh air without adding moisture. In cold climates, maintaining warmth and controlling humidity levels is crucial. By using an HRV, homeowners can recover heat from the indoor air that is being exhausted, thus preheating the incoming cold air, which results in energy savings and improved indoor comfort.

In contrast, other options might suggest different benefits, such as cost-effectiveness or maintenance considerations, but these characteristics don't address the specific advantages of HRVs when it comes to temperature control in colder environments. For instance, while ERVs are beneficial in humid climates due to their ability to balance humidity between incoming and outgoing air, HRVs excel in conditions where moisture control is less of an issue, allowing for better heat recovery without introducing excess humidity into the home.