What is a potential drawback of whole-house fans?

A potential drawback of whole-house fans is that they can create significant noise. Whole-house fans work by exhausting air from inside the home to the outside, typically pulling in cooler air from outside. This process can generate noise due to the operation of the fan itself and the movement of air through the ducts and openings. Homeowners may find this noise disruptive, especially during nighttime or quiet hours when they are trying to relax or sleep.

While noise levels can vary depending on the model and installation of the fan, many units operate at sound levels that can be noticeable and bothersome, particularly compared to other ventilation systems that are quieter. This aspect should be considered by homeowners when deciding on the use of whole-house fans for ventilation, especially in residential settings where maintaining a peaceful environment is important.

The other options present potential concerns but do not encapsulate this specific drawback. Energy efficiency can vary depending on usage and the specific fan model, while extensive ductwork is generally not required for whole-house fans, and their usage isn't restricted to summer months. Thus, focusing on noise levels highlights a key consideration for potential users of whole-house fans.