Pool heating with solar thermal energy
Pleasantly warm pool water – even in the cooler seasons and without high energy costs: with a solar panel for your pool, you gain a whole new level of comfort and efficiency. This is exactly where modern solar thermal technology comes in: Your pool is heated reliably and almost free of charge using solar energy – more sustainable, more convenient and more independent than ever before.
To find out why solar thermal energy is so clever, take a look at how solar thermal pool heating works and its benefits.
Pool heating with solar thermal energy - clever and efficient
With a solar thermal pool heater, your pool or whirlpool can be heated in an environmentally friendly way and almost free of charge. Thanks to modern solar collectors, solar energy is optimally utilised – so you can enjoy pleasant water temperatures and noticeably extend your bathing season.
Your benefits at a glance:
- Save costs: The heat comes directly from the sun, eliminating additional electricity or raw material costs.
- Protect the environment: Solar heating systems are emission-free – the environment will thank you for it.
- Extended bathing season: With modern collectors, your pool or hot tub stays warm for longer – even on cooler days.
Rule of thumb for design: The optimum collector area corresponds to around half the pool surface area. This allows you to achieve a noticeable increase in temperature and maximum efficiency.
By the way: Solar thermal energy can be a valuable addition not only for the pool, but for the entire house – discover the possibilities when heating with solar energy.

Solar panels for the pool - simply explained
How does a solar panel for the pool work? The principle is very simple: the dark surface of the collector captures the sun’s rays and converts them into heat. A heat transfer medium absorbs this energy and transfers it directly to the pool water via a heat exchanger.
A solar system consists of collectors, at least one pump and pipes. Modern systems work fully automatically: sensors and control units regulate operation so that your pool always remains at a pleasant temperature without any effort on your part.
The result:
- Warm water – exactly when you need it
- Free and environmentally friendly heating system thanks to solar energy
- automatic control units and minimal maintenance
Sustainable bathing pleasure can be this uncomplicated.
Versatile & combinable for your home
A solar collector is much more than just a clever pool heater: it can be flexibly integrated into the entire house concept. In summer, it provides hot water for the bathroom and kitchen, while in spring, autumn or winter, the solar system provides backup heating – automatically and exactly when the sun provides enough energy.
Practical: Thanks to modern solar surplus control, surplus solar energy that is not needed in the house is simply passed on to the pool – or vice versa. This allows you to make optimum use of your yield.
Whether in combination with a pellet boiler, wood log boiler, wood chip boiler or air/water heat pump – the solar system perfectly complements any heating system and makes your home more sustainable and independent.
This makes solar thermal energy a multi-talent for your home.

The right solution for every installation situation
Hargassner offers various high-performance solar panels for pools, whirlpools and domestic installations, suitable for every installation situation:
TS 300 & TS 500 solar flat-plate collector: Ideal for vertical installation on single or multi-dwelling units. The TS 300 is the efficient all-rounder for pools, hot water and heating systems. The larger TS 500 is particularly suitable for large pools and increased heat requirements.
TS 330 M cross collector: Perfect for horizontal installation on flat roofs, façades or balconies – the right solution where height is limited.
TS 400 vacuum flat-plate collector: With innovative vacuum insulation for maximum efficiency, even at low temperatures and in demanding applications.
All models impress with their first-class quality and flexible combinability with Hargassner heating systems. With our hybrid heating systems, you will find the optimum solution for every requirement.

Sustainable heat for pool and house - easy to realise
With a Hargassner solar thermal system, you can enjoy a comfortable temperature in your pool for many months, greater independence and low energy costs. State-of-the-art technology, high efficiency and flexible integration into the entire heating system make solar thermal energy the ideal solution for sustainable comfort – he ideal solution for sustainable comfort – not only for your pool, but for your entire home.
Let us advise you personally on how a solar thermal system can be optimally customised to your personal needs and local requirements. Our experts are at your side from planning to installation – for a better quality of life, security and the good feeling of investing in a sustainable future.





