Controlling Heat Loss

Controlling Evaporation and Heat Loss

Heat loss on any pool, heated by any means, is primarily driven by evaporation from the surface of the pool. Upwards of 75% of heat loss is through this method.

You can significantly reduce swimming pool heating costs by using a pool cover
Heat loss on any pool, heated by any means, is primarily driven by evaporation from the surface of the pool. Upwards of 75% of heat loss is through this method. So controlling that evaporative loss is key to reducing heating cost. There are several methods of achieving these savings.

Blankets and Covers:
One of the lowest cost covers made specifically for swimming pools is the bubble (or solar) cover. Bubble covers are similar to bubble packing material except they use a thicker grade of plastic and have UV inhibitors.
You also need to decide whether you want a manual, semi-automatic, or an automatic pool cover. You can manually pull the cover on and off, fold it, and place it somewhere out of the way. You can also purchase a pool cover reel to help manually roll up the pool cover. The reel, usually on wheels, can be rolled out of the way.
Semi-automatic covers use a motor-driven reel system. They use electrical power to roll and unroll the cover, but usually require someone to pull on the cover when unrolling, or guide the cover onto the reel when rolling up the cover. Semi-automatic covers can be built into the pool deck surrounding the pool, or can use reels on carts. Automatic covers have permanently mounted reels that automatically cover and uncover the pool at the push of a button. They're the most expensive option, but they're also the most convenient.

Another method is to use a solid pool blanket. There are two types commonly available. The first is also considered a “safety” blanket as well as a heat retention device. It is typified by its automated deployment through a series of tracks and a motor to roll the heavy duty vinyl blanket out over the surface of the pool. These are somewhat expensive yet highly valuable devices. They completely cover the surface of the pool and by their design and construction will bear the weight of a child who inadvertently enters the pool area thus supplying a very safe environment for children. The added value of the safety feature is that they also contain evaporation to a near zero rate. Excellent for both safety and efficiency.

Liquid Solar Covers:
The liquid is transparent and spreads itself out over the surface of a body of water. When it is added to your pool, it creates a liquid barrier between the water and the air, which helps to reduce the rate of evaporation.
How do liquid pool covers compare to plastic pool blankets?
Based on a 24 hour a day, 7 days a week comparison, the liquid solar pool cover is about 75% as effective as a plastic pool blanket. It is important to remember that the liquid solar pool cover is protecting your pool 100% of the time, even while you are swimming, whereas a plastic pool blanket is only effective when it is properly secured and perfectly fitted to your pool.

Solar Rings:
The Solar Sun Ring is a passive solar swimming pool heating device made from two sheets of heavyweight U.V. resistant vinyl. The upper clear layer holds insulating air and focuses sunlight on the blue colored lower layer. You will really be amazed at the thickness and durability of these Solar Pool Rings. The blue layer absorbs about 50% of the sunlight and converts it to heat. The balance of the sunlight is allowed to pass through for deep water heating.

How Do Solar Rings Work?
At night the contained air acts as an insulating blanket to retain heat gained during daylight. Solar Rings are equipped with six magnets which connect to each other easily. The strength of the magnets will permit single position removal but will easily separate to prevent entrapment in accidental falls.
Neither water nor pool chemicals can evaporate through the Solar Rings