U-tube heat exchanger for bakery ovens
Ultrasonic remote controlled switching device
Umbrella assembly for outdoor barbeque grill
Underfired kettle
Underground storage system for heating and cooling systems
Unglazed transpired solar collector having a low thermal-conduct
Unified array for collection and concentration of solar energy
Unified heliostat array
Unified hot water and forced air heating system
Unit heater and heat exchanger therefor
Unitary solar collector
Unitary solar collector panel
Unitary structure and method for utilizing solar energy
Unitary structure and method for utilizing solar energy
Unitized serving base with imperforate pellet
Universal adjustable replacement gas burner
Universal burner element for a gas barbecue grill
Universal cooking grill liner
Universal differential thermostat for solar heating system
Universal energy adaptor increaser