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• have more enjoyable swimming conditions
• have a longer swimming season
there are
two key causes of heat loss
1 -
radiated heat loss
• heat transfers from hot to cold. when the air
temperature is lower than the pool water temperature heat will
radiate out of the water into the air. this typically occurs at
night and on colder days. the pool blanket acts as an insulating
barrier to minimise this transfer.
• thermal resistance (R) is a measure of insulation effectiveness.
heat is transferred from one material (water) to another (air) by
conduction, convection and/or radiation. insulators minimise the
transfer of heat energy. the R-value is an indication of how well a
material insulates
2 - evaporation heat loss
• the majority of the heat loss (approx 95%) is through evaporation.
• a pool cover provides a physical barrier which virtually
eliminates evaporation
• preventing evaporation provides the additional benefit of reducing
the need to continually top up the pool with tap water
• low initial cost
• no ongoing heating costs
• a cover can reduce your pool heating energy requirements by up to
70%
• can be used in conjunction with heating systems
• if you are thinking about pool heating your first step should be a
cover. if you find you require more heat then the next step is to
invest in a heating system
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