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Elecro Thermecro Solar Pool Heaters
The Elecro Thermecro Solar Pool Heater converts a staggering 92% of solar radiation that strikes it into hot water for your swimming pool or spa. Thermecro is not reliant on outside temperature or direct sunlight so, unlike any other solar heaters on the market, it will work optimally in all weather conditions, temperatures and locations. Ideal solution for a secondary heating device.
Lead Time: Next Working Day
Thermecro is a patented solar heating system that uses renewable energy from the sun and converts 92% of solar irradiance that strikes it into thermal energy to heat the water of pools, spas and aquatic installations. Thermecro is the most cost-effective solution to maintaining the desired temperature of any small to medium sized pool and is best used as a secondary heating device. By utilising an electric heater, heat pump, or heat exchanger as the primary heat source, the water temperature is initially raised to the desired level. Once the desired temperature is reached, Thermecro will activate, continuously maintaining the temperature by compensating for heat loss in the pool. Thermecro is sea and salt chlorinated water compatible.
Unlike other solar heaters, Thermecro is not reliant on outside temperatures but can work optimally in most weather conditions, temperatures, and locations. However, for maximum efficiency, the system is most effective over long periods of exposure to the sun.
In the UK, the average irradiance* during the swimming season, from April to September, was measured at 949.57 kWh/m2. While the heating output is dependent on the available solar irradiance per day, the Thermecro solar heater will deliver the rated power output during these longer days of exposure.
Since solar heating systems only work during the day, it is suggested to raise the water temperature of your Thermecro solar heating system by two or three degrees. This will compensate for the heat loss during the night, enabling you to enjoy the desired temperature at any time.
It is also recommended to insulate the pool wherever possible to reduce evaporation and heat loss. This can include insulating the sides of an above-ground pool, insulating pipework and using a pool cover for when the pool is not in use.
To further increase exposure, the solar panel can be adjusted between 20 and 60 degrees, using the solar rig adjustment leg kit, supplied with the complete Thermecro system.
It is very important that the Thermecro solar heater is positioned after the pump/filter units to prevent any debris entering the system.
The water passes through a pool interface valve where some of the flow will be redirected to the 16, 32 or 48 tube models. A minimum pressure of 0.4 bar is required on the manometer of the pool interface valve to deliver the required flow rate up to 3m3/h to the panels. This pressure drop is required to ensure all tubes will be fully operational.
From the pool interface valve, water is fed to the inlet manifold located at the bottom of the solar panel and distributed equally to all 16, 32 or 48 glass tubes simultaneously.
Each evacuated (vacuum) tube consists of a thick glass outer tube and a thinner glass inner tube known as a ‘twin-glass’ or ‘thermos-flask’ tube. The tubes are made from borosilicate glass, a strong, low reflective material that will withstand extreme temperature changes without cracking, and covered with a special selective coating that absorbs 92% of solar energy and prevents any loss of heat.
Heat produced from the hottest parts of the solar tube is transferred via the aluminium f ins to the U-shape titanium capillary tube where the pool water is circulating.
The evacuated tube provides optimal thermal insulation which allows an efficient absorption of the available solar irradiance. While the inner tube can withstand temperatures up to 250°C, the outer tube will always remain cool to the touch. This means that the evacuated tube solar collector performs extremely well and heats the water to an adequately high temperature even in overcast conditions, unlike capillary matting or flat plate collectors. (See fig. 1)
The system itself is fully protected - Each vacuum tube has spring loaded action which pushes and locks the tube into the manifold. This also acts as a pressure release mechanism that prevents any damage to the glass tubes or internals, in the case of a sudden pressure increase. Any non-working tubes, caused by cracks or loss of vacuum can be easily identified from its chrome coloured tip. When a tube needs replacing, the barium getter (vacuum indicator) will change colour from silver to white.
Our patented Thermecro solar panel heater is the most efficient solar harvesting device on the market and is designed for easy installation into any small to medium sized swimmimg pool, including above-ground pools and spas.
The following table illustrates the average daily ambient temperature of 16°C and a desired water temperature of 28°C. Thermecro elevates water temperature by up to 2°C (MAX. TEMP LIFT) and effectively counterbalances the anticipated daily heat loss in a pool that is covered and insulated. Rather than primarily raising water temperature levels, Thermecro serves as a secondary heat source to help sustain optimal pool temperatures.
The following table illustrates the return on investment based on the national average electricity cost in 2023 (Capped), and the average irradiance in London, 2020.
Included in the complete system with codes SRC-16, SRC-32 and SRC-48
