Although the heated natural pool is far removed from the original ideas of the swimming pond pioneers, extended bathing pleasure is increasingly becoming a trend among pond owners. The technical effort is not insignificant, but it does not represent a major hurdle for an experienced specialist company.
What options are there for heating a swimming pond?
There are various techniques available to heat a swimming pond, such as boiler heaters, swimming pool absorbers, house heating with heat exchangers or solar panels. Well-designed piping systems and control techniques are required for efficient heating. The costs are between 10,000 and 15,000 euros.
If you don't want to wear a wetsuit and still want to swim lengths in the natural pool in early spring, you won't be able to avoid heating your swimming pond. The motivation of most pond owners is not necessarily that they want the water to be particularly warm, but rather that they want to use the pool (almost) all year round, at least from the beginning of spring.
Warm water extends the bathing season
Since from a structural point of view the natural pool is usually divided into a separate bathing and regeneration area, it can be assumed that pond water can be safely heated up to 28 °C without damaging any existing plants. However, you have to be aware that as the water temperature increases, the formation of pathologically harmful germs increases, so that allergy sufferers or bathers with less stable he alth could have problems. Therefore, it is important to ensure an even flow of warm water, especially in the swimming area, in order to avoid the so-called “dead zones”, which are particularly susceptible to the spread of pathogens and algae.
Technical possibilities for swimming pond heating
Continuous heating of the pond water not only requires a well-thought-out pipe system, the control technology must also be perfectly tailored to the amount of water and the dimensions of a functioning filter system. The following systems are used as possible heat sources:
- Boiler heater (mainly used as storage);
- Swimming pool absorbers (usually hoses mounted on the roof of the house);
- Heating system of the residential building in conjunction with heat exchangers;
- Solar panels;
When dimensioning the heat generator, one must keep in mind that an 80 kW heater is required to produce water (in an amount of 80.000 liters) from 15 °C to a temperature of 20 °C, so that goosebump-free swimming in the well-tempered swimming pond won't be cheap.
Expert advice is required when retrofitting the pool heater
Questions about the required technology, such as the optimal use of heat exchangers or solar collectors, should be discussed with a specialist company as part of the planning. Depending on the design and usage habits of the swimming pond owner, you can expect costs between 10,000 and 15,000 euros for a medium-sized pool.
Tip
Since possible germ contamination should be excluded for hygienic reasons, according to German law you are not allowed to use the water from the pond area for the heat circuit within the swimming pond heater, so fresh water must be regularly fed into the system.
