Oventrop Solar Systems is a complete line of solar collectors, solar controls, radiant floor systems and solar hot water storage tanks. The main components of the Oventrop Solar System are the evacuated glass tube collectors. The collector tubes have aluminum absorbers mounted in either 8 or 16 evacuated glass tubes. The absorber, coated with a special aluminum nitride layer, converts incoming solar radiation to heat. The special coating absorbs more than 92% of the arriving radiation. The Regusol pump station controls the flow of fluid between the solar collector and Oventrop’s 80- or 115-gallon single/dual coil tanks or single coil electric backup storage tanks.