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Pool Heating

Why to warm the water of your swimming pool?
You certainly decided to buy your swimming pool for, to amuse you in family or between friends, to practice some exercise, to spend moments to relax yourself or just for therapeutic reasons. However, you may have noticed that, if your swimming pool is not equipped with a heating system, you often find the water temperature too cold at the bathing time. Nevertheless, to swim early in the morning till late the evening, during a good part of the year, is possible! Even with a lower ambient temperature in 20°C , the water of your swimming pool can be maintained in a pleasant temperature during months.

To warm the water of your swimming pool will allow you to take advantage of it during numerous months, even all year, and you will make profitable the investment that this swimming pool represents.

What are the beneficial effects of a warmed swimming pool on the health?
The doctors and the physiotherapists consider the swimming as one of the most beneficial cardiovascular exercises. It is an activity which almost everybody can practice safely, each according to his possibilities, while to run or to jog can turn out impossible for the most part of the old persons, or affected by muscular diseases. By warming your swimming pool, you will take more advantage of the benefactions of the water. To warm the water of the swimming pool is absolutely necessary for those who use this one at first as a therapeutic mean or for those who consider the bathing as a mean of relaxation.
swimming pool electric heater
swimming pool heat pump

What is the most adapted heating system for your swimming pool?
The only heat of the sun is not generally sufficient to warm the water of a swimming pool. There are various systems to warm the water of a swimming pool, electric heaters, gas heaters, and even more elaborated systems using the solar energy. You can determine, amongst the following systems, which is the most adapted to heat your swimming pool according to several factors: your needs, your electric installation, your budget as well as the position of your swimming pool with regard to your house.
The Electric Heater is the simplest solution to implement. The device takes place directly on the pool filtration circuit. The ascent in temperature of the swimming pool is from 2 to 5 days, with the non-stop filtration. Little cumbersome, it contains a resistance crossed by an electric power. A thermostat assures the temperature regulation for an optimal comfort of bathing. Its cost price is modest, its installation is not expensive but its cost-in-use is raised enough. To decrease the energy invoice, it is recommended to use it, rather, during the "slack periods" of the electricity supplier.
Boilers for swimming pool, electric or in gas, settle down in the technical premises. A control case allows to schedule the most adapted temperature to the season what allows to master in best the energy consumption. The ascent in temperature is fast (24 at 48 h with the non-stop filtration) and of a tried and tested reliability. For the electric models, it is important to settle a system of subjection in the "slack periods" of the electricity supplier. The gas models are more expensive but they offer a cost-in-use widely lower than the electric boilers. They work exactly as classic boilers, in the natural gas (most often) or in the propane. This type of swimming pool heater is perfect for the punctual uses (weekends, short stays) but also for the prolonged uses. The cost-in-use remains rather low in the gas version. The installation cost is important, and the installation is voluminous.
The heat exchanger connects with the boiler of the house, the water of your swimming pool is warmed thus simply by the house boiler. It is the warm water of your existing installation which passes on some heat in the water of the swimming pool. It is an excellent solution if the swimming pool is not too much far from the house. By precaution, both circuits are different and do not mix. The ascent in temperature of your swimming pool depends on the power of the boiler. If this last one is enough sized, the ascent in temperature of the swimming pool is generally very fast (2 days max, with the non-stop filtration) .The installation is rather simple, and the cost is reasonable . All the boilers are not sized to welcome this type of system. Before opting for this technique it is important to make sure that your boiler can support the new wanted load.
The Heat Pump presents numerous advantages for the pool heating. It is the system which allows to pump the heat of the air and to pass on it in the water of the swimming pool. Its principle of functioning is rather complex ( Heat Pump Technology), but very economic, because it broadcasts from 2 to 6 times the energy which it consumes (for 1kw / hour consumed, it restores it from 2 to 6..). The ascent in temperature of the swimming pool is from 2 to 5 days with the non-stop filtration. The device settles down by simple connecting in the circuit of water and electric power. A case with digital display allows to control in the degree near the temperature of the swimming pool. The cost of the heating is almost painless: 2 € a day are enough for a 50 m ³ pool heating! The installation is simple. The cost of the device remains raised enough but it is very fast made profitable because the cost-in-use is very weak.
The Sun Heating uses a free energy: the solar energy. In one standard sun heating system for swimming pool, solar cells are settled on the roof of the house situated near and connected with the filtering pump already in place. In most of the cases, we use sensors without glazing having a good cost-efficiency report. The water of the swimming pool is pumped up to the sensors, warmed and returned in the swimming pool. The ideal surface of the sensors must be equal to 50-75 % of the swimming pool surface. Knowing that the quantity of solar energy which can be reached from the middle-spring to the middle-autumn is considerable, the free heating by a solar system assures a extension of the bathing time from April till October. Once settled, the system costs nothing more, but the installation coast remains very high, and the return is rather weak in most of the regions because the return depends on the of sunshine period and on the outside temperature.

Electric Heater or Heat Pump?
If we analyze the various systems of pool heating explained above we notice very quickly that the Electric Heaters or Heat pump solutions, thanks to their simplicity of installation and to their efficiency, are the most adequate in many cases.
The Electric Heater is a device conceived to warm swimming pools rather small, up to approximately 50m3 although, on certain electric installations, we can consider the installation of an Electric Heater, even some, for the heating of the water of a big swimming pool.
IMPORTANT: The power of a heater will be to determiner according to the size of the swimming pool but also according to the power supply available on the electric installation.
The Heat Pump is a device of conception more complex than the Electric Heater what explains its higher price. It is more adapted to the 40m3 in 150m3 swimming pools. Its efficiency, called Coefficient of Performance ( COP), which can reach 6 in optimum climatic conditions , varies according to the outside temperature and becomes weak when this one comes down near 5°C . We can, in that case, consider a system of heating where the Heat Pump would be coupled with an Electric Heater which would relieve in low outside temperature

The Electric Heater, as the Heat Pump, requires only, an electric supply, an input and an output of water from the filtration piping on returning to the swimming pool after the filter.