Solar for Swimming Pools

Recent Swimming Pool Installations:

Swimming Pool Sizing Questionnaire 

If you are looking to get a quote for a swimming pool Solar Thermal job then please help us out by downloading, completing and returning our sizing questionnaire:

Using sunlight to heat swimming pools can often give the fastest payback of any renewable energy installation.

What are the advantages of using solar thermal to heat my swimming pool?

Swimming Pools are an ideal application for the use of Solar Thermal Heating. As your pool will be typically used in the summer, the power that can be obtained from the sun's radiation is at it's maximum.
Typically swimming pools are expensive to heat due to the vast volumes of water involved and the latent heat  properties of water. Once your pool is up to temperature you can switch off your boiler and rely on the solar collectors to maintain the water temperature in your pool. 

How does the system work?

Sunlight is absorbed by the absorber coating within the vacuum tubes. This coating transfers heat to a heat pipe. Heat is carried to the tip (condenser) and then to the solar fluid. This is circulated through insulated pipes and subsequently released via a swimming pool heat exchanger or a coil within a hot water cylinder.

What are the requirements to use solar thermal?

There are three main requirements to get the best performance from your solar thermal investment:
  • A large unshaded southerly facing pitched roof or open area on which to mount your collectors
  • A nearby pool house or shed with an electricity supply to operate the solar pump station and controller
  • The use of a cover when your pool is not in use to prevent heat loss through evaporation

What type of system do I need?

Whether you are heating a small jacuzzi or a large pool the type of equipment you require is the same, it is just it's size and capacity that will vary with each installation. Typically a pool or jacuzzi system will consist of:
  • An array of solar collectors made up of a varying amount of evacuated heat pipes
  • A heat exchanger positioned in line with your pool circulation pump to transfer the heat from the fluid in the solar circuit to the water in your pool
  • An integrated solar pump station and electronic controller that regulates the output from your solar thermal system
  • An expansion vessel to prevent overheating of the system.

Can I use this system to heat my domestic hot water system?

Yes, this will further reduce the payback time on the system. As soon as the collectors have heated your hot water twincoil cylinder an automatic valve will divert the heat to your swimming pool heat exchanger. Ideally you will have a relatively short-run between your solar collector array, your domestic hot water cylinder and the swimming pool heat exchanger.
 

Heating a pool conventionally is becoming prohibitively costly:

Pools can have over 200 times the water volume of domestic hot water systems
Pool boilers tend to be less efficient than domestic boilers
They often use even more expensive fuels such as oil or LPG

Heating pools using solar energy is highly effective:

Pools tend to have maximum demand during the Summer
Lower temperatures are required which further increases efficiency
Solar heating systems are virtually maintenance-free and silent
Fuel demand and CO2 emissions can be reduced by over 90%
The system can also provide domestic hot water throughout the year

Barilla Solar have specified pool systems for hundreds of installations ranging from small domestic to commercial sized pools.