Active low temperature limit for battery powered thermostat

Air temperature control assembly for infrared remote

Apparatus and method for controlling distribution of electrical

Autocycling control circuit for heating and/or air conditioning

Automatic adjusting control system for air-conditioner

Automatic set-back temperature control for air conditioners and

Automatic wall thermostat

Climate control sensor apparatus

Communicating thermostat

Condition responsive thermostat control apparatus

Control system for an air temperature changing unit

Control system for environmental apparatus

Control unit for a multi-unit building

Controller for air conditioning or heating system

Direct digital control thermostat

Dynamically controlled environmental control system

Easy-to-install thermostatic control system based on room occupa

Electronic temperature control system

Energy management system and method

Energy saving apparatus and method