More comfort, lower costs
Solar heating
Would you like to save up to one third of heating costs with solar air collectors? We design and install air collector solar heating.
Solar heating support for house or apartment
Conventional solar thermal collectors use solar energy to heat water, which can then be used to heat the radiators in the house, for example. In contrast, air collectors heat the outside air and direct it into the house in a filtered form. Since air absorbs the solar heat directly, without the detour via the medium water, air collectors have a very good efficiency.
In direct sunlight, solar air collectors can warm the outside air by up to 40°K, and still by 4°K to 10°K when the sky is overcast. In other words, if it is cloudy outside and the temperature is 16°C, the collectors will still deliver an air temperature of at least 20°C into the house. As soon as the air becomes too warm or too cold, the air collector switches off.
With 1 m² of collector area, 8 m² of living space can be heated. In old buildings, this can save up to one third of the heating costs. The disadvantage of solar air collectors compared to photovoltaics or solar thermal is that the energy cannot be stored and used at a later time. On the other hand, they work reliably even on cloudy days, when photovoltaics and solar thermal already provide hardly any energy.
Haustrocknung.ch is an owner-managed company based in Bern. Our field of activity includes primarily the drying of damp buildings by means of electrophysical wall dehumidification and ventilation systems. As we are convinced of the quality of Grammer®Solar technology, we actively contribute to its dissemination in Switzerland. Contact us without obligation.
⇓ «SolarVentilation» brochure from Grammer®Solar (German) [1.]
Our services
- Planning and dimensioning of solar heating
- Supply of solar air collectors, supply air and exhaust air openings
- Equipping or retrofitting the air collectors with the night ventilation set.
Your advantages
- Advice from experienced building experts
- Pleasant living climate thanks to automatic ventilation
- Lower heating costs and smaller ecological footprint
- Simple and fast assembly, low maintenance
Solar heating for a basement room
Contact us without obligation
Do you have any further questions or may we prepare an offer for you?
Get in touch with us without obligation. We look forward to your inquiry!
Get in touch with us without obligation. We look forward to your inquiry!
Tobias Bayer
Managing Director
What is solar heating?
The term “solar heating” generally refers to solar collectors that heat water, which is then used to heat the radiators in the house. In contrast, we offer solar air collectors that channel solar-heated air into the house.
What is the cost of solar heating?
Haustrocknung.ch offers solar heating systems with solar air collectors from Grammer® Solar starting at CHF 1,500–2,000 per square meter of solar surface area. The exact price depends on the number and size of the solar air collectors, the accessibility of the installation site, and travel time. Ask for a non-binding quote.
What are the advantages and disadvantages of a solar heating system with air collectors?
Automated ventilation with solar air collectors ensures a comfortable indoor climate year-round, reduces the risk of mold, and noticeably lowers heating costs in the winter. Solar air collectors have the highest efficiency of all solar systems—unlike photovoltaic or solar thermal systems, however, they cannot store energy for later use.
Why a solar heating from Haustrocknung.ch?
Haustrocknung.ch has specialized in the issue of moisture in buildings since 2010 and is experienced in the installation of ventilation systems. We install exclusively high-quality Grammer®Solar, which have been manufactured in Germany for over 40 years and were the first air collectors in Europe to be certified with the Solar Keymark. The Keymark helps consumers choose products that meet European standards.
How much does solar heating cost?
The installation of a solar air collector costs approximately CHF 1,500–2,000 per square meter of solar surface area. The price depends on the collector’s specifications, our installation costs, and travel time. We will be happy to prepare an individual offer for you.
How much does it cost to run a solar heating system?
The solar ventilation system from Grammer® Solar operates completely independently, as it generates the electricity for the fan itself. If the system is equipped with the «night ventilation» option, electricity costs of approximately CHF 25 per year may apply.
How does a solar heating system affect heating costs?
According to the manufacturer, solar air collectors can reduce heating costs by up to one-third in older buildings. The actual cost savings depend on the characteristics of the residential building and the local solar radiation and can vary greatly from case to case. However, the efficiency of solar air heating is often underestimated and is surprisingly good even on overcast days.
What maintenance costs and expenses should I expect?
The filter should be replaced once or twice a year. Otherwise, solar air collectors are virtually maintenance-free and deliver very consistent performance for decades.
How does a solar heating system with air collectors work?
The Grammer® Solar solar air collector generates electricity, which powers a fan. The fan draws in air, which first passes through a filter, is then heated by up to 40°K in the air collector, and finally circulates throughout the house. As soon as the desired room temperature is reached, the system shuts off automatically.
What can a solar air heating system do?
The solar heating system from Grammer® Solar brings free solar heat into your home. This ensures a healthy and comfortable indoor climate, lowers heating costs, prevents mold, and keeps your home dry. Optionally, the air collector can be equipped with a night ventilation kit, which connects the ventilation system to the home’s electrical grid. This allows the house to be cooled with cool night air on a timer and ventilated on demand as needed.
Does the solar heating filter pollutants from the air?
Yes, the air drawn in passes through a filter before entering the house. This filter must be replaced once or twice a year. Otherwise, the system is maintenance-free.
How effective are solar air collectors when the sky is cloudy?
While the air inside the collector heats up by as much as 40°K under direct sunlight, it still heats up by 4°K to 10°K even when the sky is overcast. That may sound like a low yield, but it actually represents the highest efficiency of any solar system. At an outside temperature of 16°C and under overcast skies, the air collectors still deliver an air temperature of at least 20°C into the house.
Where does solar heating make sense?
Solar heating systems with air collectors are mainly used for smaller residential properties, such as single and multi-family houses, apartments, vacation homes, basements, garages, mountain, hunting, fishing and club huts, mobile homes, tiny houses and caravans. However, solar air collectors are also suitable for larger residential and industrial buildings, such as multi-story residential buildings or as a drying system for wood chips, hay, firewood, biofuels or malt.
How big should the air collector be?
Up to 8 m² of living space can be heated per square meter of collector area. With this configuration, the entire volume of indoor air is replaced 2.5 times per hour.
What to consider when installing solar heating?
Air collectors are installed on flat roofs, sloped roofs, or facades—either flat or at an angle. The ideal location should receive as much sunlight as possible and not be partially shaded.
How is the solar heating controlled?
The ventilation system is controlled by a thermostat. As soon as the desired temperature is reached, the system shuts off. For nighttime ventilation, the system operates on a timer or at the push of a button.
How does the order work?
After an initial consultation and property inspection, we will prepare a quote tailored to your property. Once you have approved it, we will install the solar heating system. A lift may be required for the installation.
How long does it take to install the solar heater?
Installation of the solar heating system usually takes one day. The installation time depends on the accessibility of the installation site as well as on the number and size of the solar air collectors.
How long does a solar heater last?
Grammer Solar® expects a service life of at least 25 years. The collectors have been manufactured in Germany for over 40 years and are certified in accordance with the collector standards DIN EN ISO 9806 and DIN EN 12975-1.