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evacuated tube models:

 

Click here to view an informative pdf about evacuated tubes and installation requirements.

 

SUNDA SEIDO 1

     Our most economical collector, with standard straight absorber in  the glass tube, which converts sunlight to free heat energy.  Appropriate for the majority of installations.

SEIDO 1   /         /    

 

SUNDA SEIDO 2

     This collector features higher efficiency with direct flow of  liquid through each vacuum tube. Can be mounted in any  orientation for greater design flexibility.

SEIDO 2   /         /    

 

SUNDA SEIDO 5

     These collectors feature a bent (convex) absorber in the glass tube, which allows the collector to remain active even at low  sun in the early morning or late afternoon. Appropriate for select installations.

SEIDO 5   /         /    

 

SUNDA SEIDO 10

     This collector is similar to our Seido 1 style but features smaller diameter and shorter tubes.

SEIDO 10   /         /    

 

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