Staying warm - temperature requirements

It can be a challenge to keep your outdoor pool heated, and extend the swimming season as long as possible. Most indoor pool owners prefer to keep their pool heated all year round. In either case, the temperature requirements of your pool bear closer inspection. Your pool water should be between 25 degree centigrade (78 Fahrenheit) and around 28 degrees centigrade , depending on personal preference and who is using the pool. For example, older people and children will probably need a temperature at the warmer end of the spectrum.

Choice of Heating
There are several different types of pool heater, and each offers benefits and downsides. One of the most popular choices is a gas heater, supplied either by a tank or through the gas main. Considering most people have central heating in their homes, it makes sense for those building a pool within their existing property.

Another popular option is a solar heater. The panels can be installed on a rooftop and wired down to the pool, offering a flexible and free source of energy. Unfortunately, the initial cost is often high and some people don't have the space to install the panels on their roof. It can also be the case that the climate is not warm enough to make solar panels cost-effective.

For those with outdoor pools, a heat pump might be the solution to heating challenges. This technology actually harnesses warmth in the air and transfers it to the pool water. Obviously, this means it works best when temperatures are higher, but it can work well any time it's over 10oC.

Pool Covers
A good pool cover will help retain your optimum water temperature for longer, meaning better energy efficiency and lower bills. The best covers on the market are automatic – owners can extend and withdraw the cover at the push of a button. The cover will keep the heat in the pool rather than in the room, making for a comfortable temperature every time you swim.

One of the latest inventions is the liquid solar blanket. A tasteless liquid poured onto the surface of your pool, this ‘blanket’ prevents temperature fluctuation and evaporation. It does this by forming a consistent layer over the surface of the water. When a swimmer is using it, the cover breaks up. However, after the swimmer leaves the pool the liquid forms a barrier again.

Ventilation
During construction of your pool, it's imperative to ensure adequate ventilation for your pool. Your chosen heater will keep the water warm, but without proper ventilation, the pool room can become uncomfortably humid. If you are unable to effectively ventilate the pool for whatever reason, you may opt for a dehumidifier. Condensation will make surfaces slippery and will probably cause damp problems further down the line.

Discuss the best heating and ventilation for your pool with your pool designer. Be sure to discuss the space available for the pool and plant room as this may influence the equipment that can be installed. Having the right systems installed for your property will make a world of difference when it comes to maintaining pool temperature.

At London Swimming Pool Company we specialise in swimming pool design, construction and refurbishment, so if you need advice on a brand new pool, contact us for an initial discussion – there’s no substitute for expert advice.