Germanstar HP 70

Germanstar HP 70

Germanstar HP 70 – Quality “Made in Germany”

Our full vacuum collector Germanstar HP 70 is “Made in Germany” and offers high yields even on so-called ‘low-light days’. Different from other heatpipe collectors, the Germanstar HP 70 can be rotated from 3-90 degrees and therefore, can be used universally – horizontally or vertically on roofs and facades as well as by stand-alone mounting. This high-performance collector is most suitable for solar supported heating.

Key data

  • Tube diameter 70 mm
  • Heatpipe full vacuum collector
  • Rotatable from 3-90 degrees and therefore, multiple installation options
  • High low light yields due to fast reaction
  • Very high yields in cold environments (winter)
  • Very good wind behaviour when installed on stands


Specifications Germanstar HP 70
High Vacuum Tube Collector with Heatpipe
Type high vacuum tube, sealing by thermo compression germanstar_hp_70_table
Certificate, Performance Test
Shape of absorber flat
Modules Germanstar HP 70/16 Germanstar HP 70/24
Number of tubes 16 24
Active absorber area 2.0 m² 3.0 m²
Aperture area
Gross area 2.92 m² 4.3 m²
Length x width x height (mm) 2,300 x 1,268 x 125 2,300 x 1,868 x 125
Weight  (empty)
Pressure loss at flow rate 100 l/h 0,0379 bar 0,1387 bar
Liquid contents 0.84 l 1.25 l
Glass material High-grade boron silicate hard glass
Glas tube diameter 71 mm
Wall thickness 2 mm
Vacuum <10-5 mbar
Absorber material Copper
Coating Titanium-Nitrite-Oxide
Absorption coefficient > 95%
Emission coefficient < 5%
Tilt angle 20° to 90°
Test pressure 9 bar
Permissible operating pressure 6 bar
Max. idle temperature of module 238 °C
Max. idle temperatur of tube 252 °C
connection of modules Locking ring
Manifold Copper
Manifold casing Aluminium, extruded
Coating Burned-in varnish, RAL 7016
Insolation Mineral wool, 115 kg/m³
Base support, side bars Aluminium


Technical changes reserved


Germanstar HP 70: Quality “Made in Germany”!

Our service for you: 10 years special warranty for all vacuum tubes.


Do you have questions or need further information?
We're there for you. You can reach us in these ways:

Phone +49 9074 9220-371
» via contact form
» Email


EuroSun Solarsystem GmbH
An der Bahn 5b
89434 Blindheim

Phone.: +49 9074 9220-371
Fax: +49 9074 9220-370