Disign of Solar Heat Systems

How much surface on my roof I needed?

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
Hot water + Heating
Number of persons
Flat-plate collector Vacuum tube collector
up to 2 - 3,5 - 4m² 3 - 3,5m²
2 until 4 - 4,5 - 5,5m² 3 - 3,5m²
4 until 5 until 3 + Heating 6 - 6,5m² 4,5 - 5,5m²
5 bis 8 until 4 + Heating 7 - 8m² 6 - 7m²
7 until 10 until 5 + Heating 9 - 11m² 7,5 - 8,5m²
9 until 12 until 6 + Heating 12 - 14m² 9 - 9,5m²
11 until 15 until 7 + Heating 15 - 17m² 12 - 12,5m²