Ventilation Dehumidification Energy Recovery

The first thing you need to understand is that the heat off the pool is in the form of warm moisture-laden air (evaporation), and is the single biggest heat loss from a pool. This will heat the pool room area as well as directly increase the humidity levels of the indoor space.

Air Conditioning & Space Air Heating

To counter the heat and humidity issues the purchase of air-conditioning systems are considered. By providing heat to the pool room close to the pool temperature provides the best results.

Space Heating

Space heating systems are usually gas or electric-based systems. These days they also use a process known as preheating air. Used to remove any humidity from outside air prior to pushing the warm air into the space. This can be a very effective but expensive method.

Ventilation

Unlike Air-conditioning ventilation is a critical requirement of indoor pools, not just for fresh air, it also helps to passively reduce chlorimides, heat and humidity.

Australian Standards state that indoor pools require a certain degree of fresh air and ventilation. please see your state regulations as it varies state to state.

Ventilation can come from either passive or active forms.

• Passive: Windows and doors, vents and whirly Birds
• Active:   Air Fans, Ventilation systems and Extraction fans.

Although ventilation is crucial to good pool room heath, there is a trade-off between standards requirements, people’s creature comfort and what is affordable.

As you increase ventilation levels to improve comfort for swimmers & non-swimmers, you also increase evaporation levels of the pool which directly increases the heat energy demand on the pool.

Dehumidification

Even though air-conditioning and ventilation go a long way to remove heat and humidity form the pool environment, they are often not effective enough at removing latent moisture in the air and the use of a dehumidifier is engaged.

These work by drawing air through an evaporator – condenser circuit system. The act of evaporation and condensing causes moisture to come out of the air in the form of condensate.

The use of a dehumidification system is a very effective way of actively reducing the humidity levels and some provide a method to increase airflow across the pool room space as well.

However, the use of such a system again increases the running cost of the pool. If you are also using air-conditioning or active ventilation your pool running costs could now be triple the original cost.

Energy Wastage

As we have seen, once you start utilising air heating, dehumidification, and space ventilation the pool heating running costs will rise. Also, once you add the additional running costs of all the equipment implemented your monthly bill can be quite extensive.

Also, pool heating and space conditioning is a continuous battle with nature and most systems just produce wasted heat energy and are typically just ejected straight out into the environment & lost, just to be replaced again later with a new source of heat.

With experience dating back to 1989 Toyesi has been building and designing Heat Pumps solutions to suit a wide range of problems. One of these solutions was to use the pool heat pump in a special configuration and allow one unit to provide a multiple function system that can provide:

• Energy capture & reuse
• Ventilation – Active and Passive
• Temperature control – space cooling
• Reusable clean condensate water – great for top-up pool water.
• Dehumidification – Humidity reduction
• Pool Heating
• Running cost reduction – & the best bang for the buck

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Pool Blankets will save you up to 40% of running costs.