Collectors
Collectors are central components of solar thermal systems and absorb solar energy to generate heat. They are suitable for customers who want to use solar thermal energy for domestic hot water preparation, heating support, or as a supplement to existing heating systems.
In the GEMA Shop you will find collectors for various system concepts, roof areas, and areas of application – suitable for new construction, renovation, complete solar thermal packages, and the modernization of existing heating systems.
Notes
Use the filters to narrow down the selection by relevant properties such as manufacturer, product type, area of application, technical features, or availability. The information is provided for orientation purposes and does not replace a check of the technical suitability, compatibility, or proper use of the product.
Choosing the right collectors
Collectors are the heat-absorbing components of a solar thermal system. They use solar energy to absorb heat via a heat transfer fluid and pass it on to the rest of the system technology. Depending on the system, this heat can be used for domestic hot water preparation, heating support, or in combination with a suitable storage tank.
In principle, a distinction is often made between flat-plate collectors and evacuated tube collectors. Which type makes sense depends on the system goal, the available roof area, the orientation, the installation situation, the storage tank, and the desired integration into the heating system. What matters is not just the individual collector, but the interplay of collector area, solar station, controller, storage technology, and hydraulics.
Advantages of collectors
- Use of solar heat: Solar energy can be used to support domestic hot water preparation or the heating system.
- Flexible system integration: Depending on the system concept, collectors can be combined with storage tanks, solar stations, and existing heat generators.
- Suitable for new construction and renovation: Solar thermal can be integrated into new systems or added during modernization.
- Structured selection: Collector type, collector area, manufacturer and system compatibility can be compared in a targeted manner.
Areas of application and target groups
Collectors are suitable for homeowners, DIY enthusiasts, buyers with a plumbing/heating background and technically interested end users who want to plan, expand or modernize a solar thermal system. Typical areas of application are single-family homes, smaller multi-family homes, renovations, new builds, domestic hot water preparation, heating support and combined heating systems with storage technology.
Important selection criteria for collectors
When selecting, particular attention should be paid to collector type, collector area, installation situation, roof orientation, storage tank connection, operating pressure, connection material and compatibility with the solar station and controller. For further system planning, solar storage tanks, solar accessories, storage technology or suitable Solar Thermal Complete Packages be relevant.
Note on Professional System Design
The selection and sizing of collectors must match the roof area, orientation, shading, hot water demand, heating system, storage tank, and hydraulics. Product specifications and filter values are for orientation purposes only and do not replace professional system planning or yield assessment.
Frequently Asked Questions about Collectors
What are collectors?
Collectors are components of a solar thermal system that absorb solar energy and transfer it as heat to the solar system. Depending on the system, this heat can be used for hot water or heating support.
What is the difference between flat-plate collectors and evacuated tube collectors?
Flat-plate collectors and evacuated tube collectors differ in design, heat absorption, and application profile. Which variant makes sense depends on roof area, system goals, storage, and installation situation.
What are solar collectors used for?
Solar collectors are mainly used for hot water preparation or to support the heating system. The exact use depends on the storage, control, and hydraulic integration.
Can collectors be combined with existing heating systems?
Yes, depending on the system concept, collectors can be combined with existing heating systems. Important factors are a suitable storage tank, appropriate control technology, and professional hydraulic integration.
What collector area makes sense?
The appropriate collector area depends on the hot water demand, the desired solar contribution, the roof orientation, shading, storage tank size, and the overall system concept. A one-size-fits-all selection is not sufficient.
What should I pay attention to when comparing collectors?
The collector type, collector area, manufacturer, mounting method, connection material, operating pressure, system compatibility, and the coordination with the storage tank, solar station, and controller are important.
Do collectors replace proper system planning?
No. Collectors are central components of a solar thermal system, but they do not replace planning. The roof area, orientation, storage tank, hydraulics, and safety equipment must be designed appropriately.