By what percentage can a pool cover reduce heating costs?

Using a pool cover can significantly enhance the energy efficiency of a swimming pool by reducing heat loss, especially in colder months or during the night. The correct answer indicates that a pool cover can reduce heating costs by between 50% to 70%.

This substantial reduction is primarily due to the fact that a pool cover minimizes evaporation, which is responsible for a significant amount of heat loss. When a pool is uncovered, thermal energy escapes through evaporation, and this is typically exacerbated by factors such as wind and lower ambient temperatures. A cover acts as a barrier, significantly reducing this evaporation and thereby maintaining the water temperature for a longer period.

Additionally, using a cover can also reduce the need for additional heating methods, which can lead to further cost savings. Many studies and energy audits confirm that the energy savings associated with covering a swimming pool fall within the range indicated, making the identified percentage both reasonable and backed by empirical data.