Why do swimming pools consume so much energy?

The pool itself is a large body of warm water constently agitated by bathers and water features. Evaporation is encoraged by both the environmental conditions and increased agitation of the waters surface. Evaporation draws energy from the pool water in the form of latent heat.

The temperature of the pool water and the pool hall itself are relatively high, (29oC and 30oC respectively), compared to other rooms in the building.

To control the evaporation from the pool, protect the integrity of the building and provide a comfortable atmosphere for bathers and employees the pool hall must be ventilated using substancial ventilation systems. Typically the airside capacity of the pool hall is changed between 6 and 10 times an hour, every hour!

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