Portable type solar heat cooker assembly
Portable water carriers
Power efficiency for very high temperature solar thermal cavity
Pre-heater for water heater
Prefabricated outer wall element
Preparing selective surfaces for solar collectors by dry oxidati
Pressure-isolating circulating pump for solar water heating
Prevention of freeze damage to liquid conduits
Prevention of thermal buildup by controlled exterior means and s
Prismatic solar beam concentrator
Prismatic tracking insolation
Prismatic tracking insolation collector
Prismatic wall heater
Process and apparatus for heating a transparent, gaseous medium
Process and apparatus for obtaining hot water by use of solar en
Process and apparatus for the preparation of hot water from sola
Process and apparatus for the utilization of solar and geotherma
Process and device for the recuperation of heat from selected ra
Process for the production of a solar collector panel assembly a
Process for the reversible transfer of thermal energy and heat t