Design of solar heat systems

What size of surface do I need?

The needed surface on Your roof will be detemined depending on whether you want to provide only hot water or in addition to heat. With a low roof you should preferably use vacuum tube collectors, because these generate a higher power per square meter.

If you want an offer, then please download our registration sheet as PDF file.

Overview

Hot water
Number of persons
Warm water + heating
Number of persons
Flat-plate collectorVaccum tube collector
up to 2-3,5 - 4m²3 - 3,5m²
2 to 4-4,5 - 5,5m²3 - 3,5m²
4 to 5up to 3 + Heizen6 - 6,5m²4,5 - 5,5m²
5 to 8up to 4 + Heizen7 - 8m²6 - 7m²
7 to 10up to 5 + Heizen9 - 11m²7,5 - 8,5m²
9 to 12up to 6 + Heizen12 - 14m²9 - 9,5m²
11 to 15up to 7 + Heizen15 - 17m²12 - 12,5m²