Thermal panel for heating liquids
Thermal storage and heat transfer system and method
Tracking system for solar energy collector
Tray for selectably heating or cooling the contents
Trigger device for heat pack
Trigger for a portable heat pack
Trigger to activate aqueous salt solution for use in a heat pack
Trigger to activate supercooled aqueous salt solution for use in
Trigger to activate supercooled aqueous salt solution for use in
Trigger to initiate crystallization
Tubular solar collector
Two-zone hot air oven for food-loaded cartridges
Two-zone hot air oven for food-loaded cartridges
Underground storage system for heating and cooling systems
Unitary solar collector
Vacuum solar collectors
Variable capacity type viscous heater
Vehicle heaters
Vehicle safety device
Vent control for grill