This aquatherm orange system heating system keeps open spaces free from ice and snow all the year. Typical fields of application for the open space heating system are pedestrian zones, sports fields, garage drives and gateways, drive-up ramps, open car parks or helicopter pads.

In all areas the open space heating system can prevent accidents, e. g. by fall. Furthermore no manpower and equipment is required for snow clearance.
Environment polluting grit (e. g. salt) is not necessary. Open space heating normally runs with very low flow temperatures, rarely exceeding 30° C. If in the field of industry rejected heat can be used, no more operating expenses will arise.
Approximately 250 Watt/m² are required, depending on the circumstances, to keep open spaces free from ice and snow. A mixture of water and anti-freeze is used.
The calculation of the open space heating system depends on the selected type of operation:

• the surface is to be kept free from ice and snow permanently
• the surface is to be kept free from ice and snow for certain times

Also temperature, humidity, heat output and inertia of the system must be considered for controlling the open space heating system. The aquatherm orange system open space heating is suitable for the installation below pavement embedded in sand or grit, as well as in concrete, in the soil or in mastic asphalt.
Smaller open spaces may be installed with manifolds, like the under floor heating.