Algarve Solar Pool Heating & Hot Solar Water Solutions

15/05/2026

20+ Year Old Solar Thermal System Recommissioned & Restored

Projects like this are a reminder of how well some early European solar thermal systems were designed, engineered, and installed.

It is also fascinating to see how the technology, controls, efficiency, hydraulics, insulation, and engineering principles have continued evolving over the years, into the modern high-performance solar thermal systems we install today.

This impressive early-generation European solar thermal combi-system was exceptionally well engineered, intelligently designed, and built using very high-quality components.

Our two-day intervention had the goal to restore operation, circulation, and hydraulic integrity without turning the project into a complete rebuild, or undertaking large immediate replacement costs.

Systems like this were way ahead of their time, this one built with very high-quality equipment and solid engineering principles.

The system consists of 8 solar thermal panels being the primary source of heat for the large thermal energy store (water tank), with the fireplace in the house as the back-up heat source.

The system produces and provides hot water for the house, underfloor heating throughout the house, as well as swimming pool heating… all via multiple hydraulic circuits, multiple circulation pumps, multiple heat exchangers, with various interconnected sensors and controllers.

With proper servicing and maintenance, these intelligently engineered systems can continue operating efficiently for many years.

Over the two day service we drained, flushed and cleaned out all the hydraulic circuits and heat exchangers, drained and flushed the tank and underfloor heating circuits, the fireplace heating circuit, replaced automatic air vents, replaced seized circulation pumps, checked expansion vessels, filled the solar circuit with the correct mix of glycol and demineralised water, filled the thermal energy store and underfloor heating circuits with demineralised water and corrosion inhibitor, pressurised all the circuits and bled air out systematically,

The Result - A stable and operational multi-source solar thermal heating system once again producing, storing, transferring, and distributing heat directly from sunshine. And, another very happy client!

Amazing how, with the right tools, knowhow, a little bit of love and attention, and some replacement parts, a more than 20-year-old system can be brought back to life.

www.HelloSunshine.pt

Solar Pool Heating & Hot Solar Water Specialists

12/05/2026

At the centre of this installation is the HSK600 Hygienic Thermal Energy Store which allows multiple heating circuits, energy sources, and hydraulic functions to work together efficiently… from one central tank.

The primary source of heat comes from high-performance solar thermal panels.

The tank is a thermal energy store that provides domestic hot water as well as heat for underfloor heating and radiator circuits.

Domestic hot water is produced fresh, on demand, through an internal anti-legionella stainless steel coil.

The system has been configured so solar thermal energy always does the hard work first, with the back-up gas boiler only activating under specific pre-programmed conditions to top up and maintain temperatures when required.

The result is an intelligent, automated, low running-cost renewable all-in-one heating system producing large amounts of heat directly from sunshine… designed for long-term efficiency and reliability.

These systems can also be expanded to provide efficient heating for swimming pools.

Speak to us early in the process if you are designing, renovating, or upgrading a property or heating systems.

www.HelloSunshine.pt

08/05/2026

75m² of direct solar thermal pool heating panels installed for a 20m × 6m outdoor swimming pool at the prestigious L’AND Vineyards Estate in Montemor-o-Novo, Alentejo.

In consultation with us from the early stages of design and construction, this swimming pool was properly insulated around the walls, with pipework integrated into the structure as the building project progressed.

This system features its own dedicated hydraulic circuit, independent circulation pump, and digital temperature control to ensure maximum efficiency and automatic operation.

Within days of commissioning, significant temperature increases were already being noticed in the swimming pool.

This project demonstrates exactly why the best time to speak to us is during the design and construction phase — when insulation, pipe routing, equipment positioning, panel layout, and overall thermal efficiency can all be properly considered and integrated from day one.

To our knowledge, one of the first properly insulated swimming pools of this scale in Portugal designed with this level of thermal efficiency in mind.

Although we are based in the Algarve, for selected projects we travel throughout Portugal.

Speak to us early in the process when designing, building, or renovating.

Happiness is… a warm swimming pool.

HelloSunshine.pt

06/04/2026

Another complex multifaceted solar thermal system diagnosed, corrected, and brought back to life.

And another Happy Client!

www.HelloSunshine.pt

11/03/2026

Historic farmhouse modernised with solar thermal energy.

Here we installed 12 high-performance solar thermal panels on custom framework.

The different panel pitches form a “parabolic array”, enabling highly efficient capture of solar thermal energy across the seasons.

The solution includes a unified thermal energy store and hot solar water ring main system for the property, with excess heat diverted through a titanium heat exchanger for swimming pool heating.

Happiness is… A Warm Swimming Pool.

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If you're designing, building, or renovating a home or swimming pool, speak to us early in the process.

If you're curious about solar pool heating and hot solar water systems in the Algarve, feel free to reach out.

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💯 100% Recommend (27 Reviews) on Facebook
https://www.facebook.com/AlgarveSolarPoolHeating/reviews

⭐ 4.9 / 5 Rating (82 Reviews) on Google
https://tinyurl.com/AlgarveSolarReviews

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🌞 https://HelloSunshine.pt

11/03/2026

Thank you to all our amazing & happy clients for all the positive feedback & continued support.

💯 - 100% Recommend (27 Reviews) on Facebook

https://www.facebook.com/AlgarveSolarPoolHeating/reviews

🏆 - 4.9 / 5 Rating (82 Reviews) on Google

https://tinyurl.com/AlgarveSolarReviews

4.9 ⭐ · Solar energy company

20/11/2025

A cute swimming pool refurbished and heated with solar thermal.

Enjoy Your Swimming Pool More!

www.AlgarveSolarPoolHeating.com

Algarve Solar Pool Heating & Hot Solar Water Solutions

09/11/2025

Another superb direct solar thermal pool heating installation.

For added efficiency, this solar system has temperature sensors on the solar panels and for the pool water with digital control and an independent variable speed pump specifically for the solar system.

Enjoy Your Swimming Pool More!

www.AlgarveSolarPoolHeating.com

Algarve Solar Pool Heating & Hot Solar Water Solutions

24/10/2025

Michel enjoys his 29 °C solar-heated swimming pool…

Followed by a pleasant outdoor solar-heated hot shower.

In late October…

At night!

Be like Michel - Enjoy Your Swimming Pool More!

Be like Michel - Enjoy free hot water from the sun!

We also upgraded the pool filtration system to a whisper-quiet super-efficient variable-speed pool pump, and automated salt chlorination and pH management system…so, not only heated by the sun, but also keeping his pool water crystal clear and trouble-free.

And installed three separate hot solar water thermosiphon systems, providing free hot water for various parts of his property.

The transformation of this swimming pool & property over the last year is incredible.

Very proud of our work here over the last year!

www.AlgarveSolarPoolHeating.com
www.HotSolarWaterAlgarve.com

21/10/2025

Before and After Transformation

From a sh*t-show of an overheating, poorly installed old solar system and pipework — overheating and melting PVC pipes, bad electrics, chaos everywhere.

To this.

All pipework, electrics and controls meticulously re-engineered.

First we pre-heat the water with solar thermal energy through a new inline titanium heat exchanger.

Then send the water through a modern full-inverter, super-quiet, super-efficient heat pump.

Finally through a new salt chlorinator with automated pH control.

All circulated with a whisper-quiet super-efficient variable speed pool pump.

Powered by a brand-new custom DV board and electrics.

Pipework is artwork.

Situation sorted.

Enjoy Your Swimming Pool More!