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  Heat pipe vacuum tube collector
    SEIDO1 Series
    SEIDO5 Series
    SEIDO10 Series
    SNG Series
  Direct flow vacuum tube collector
    SEIDO2 Series
  Flat plate collector
    PG Series
  Roof mounting kits for SEIDO series collector
    RM series
  Heat pipe vacuum tube water heater
    SP Series
    BP Series
    DP Series
    MDP Series
  Flat plate water heater
  All glass vacuum tube water heater
    SPQBP series



Excelling in Solar Technology


SUNDA'S SEIDO EVACUATED TUBES were developed by Sunda and Daimler-Benz Aerospace with support from UNDP in 1986. Over ten years of co-operative research and development by Sino-German experts resulted in today's design. Sunda's vacuum tubes are suitable for OEM manufacturers and can be used for various kinds of installations. Absorber and heat pipe are mounted in a highly stable borosilicate vacuum glass tube. This prevents damage and the heat loss that occurs in conventional solar collectors. The absorber is sputtered with aluminium nitride selective coating to ensure high absorption and highest efficiencies even on cloudy days.


SUNDA SOLAR COLLECTORS offer elegant design and efficiency in any application. The collectors are suitable for single unit installations or large-scale installations for heating or air conditioning projects. The heat pipe tubes are not dirctly connected to the water circle and therefore tubes can easily be replaced or added.

Sunda collectors can be mounted even on smallest areas and verifiably achieve higher temperatures than flat collectors. The high quality manufacturing ensures a lifetime of at least 15 years without loss of efficiency.


SUNDA SOLAR WATER HEATERS combine SEIDO solar collector and storage tank into one product. The sanitary domestic water heaters consist of collector, hot water tank, stand profiles and reflector. Sunda offers water heaters equipped with heat pipe vacuum tubes, flat plate collectors or all glass vacuum tubes. Its environment-friendly technology, reliability and low price have driven its dissemination throughout the world. The systems can provide 70% of energy required for water heating over the course of a year and practically cover 100% during the summer.

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