Advanced in-ground/in-water heat exchange unit
Air circulation system for generally enclosed structures
Air circulation system for generally enclosed structures
Air conditioning system utilizing earth cooling
Air conditioning/providing system directly through natural heat
Air operated underground cooler means with natural lift
Air temperature control system
Apparatus and method for controlling temperature of a turf field
Apparatus for containing toxic spills employing hybrid thermosyp
Arrangement for effecting an energy exchange between earth soil
Arrangement for ensuring that ice will form substantially unifor
Arrangement for tubular heat exchangers located in a lake
Arrangement to control heat flow between a member and its enviro
Arrangement to control heat flow between a member and its enviro
Attic air conditioning system