Abstract: A heavy metal capture composition, devices including the composition, and a method of reducing heavy metal contamination in the environment is described.

Abstract: A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various functions of the programmable thermostat. The programmable thermostat also includes a temperature sensor (18), a microprocessor (19) having memory for storing a default program set of default temperature and time values and a desired program set of desired temperature and time values. The microprocessor may compare the desired program set to the default program set in order to calculate the efficiency of a HVAC system. The calculated efficiency is then displayed graphically on the display panel.

Abstract: A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various functions of the programmable thermostat. The programmable thermostat also includes a temperature sensor (18), a microprocessor (19) having memory for storing a schedule program set which includes a number of schedule time periods. Each schedule time period includes a start time, end time and temperature. The manual programming of select schedule time periods may automatically set the start and end times of another schedule time period.

Abstract: A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various functions of the programmable thermostat. The programmable thermostat also includes a temperature sensor (18), a microprocessor (19) having memory for storing a default program set of default temperature and time values and a desired program set of desired temperature and time values. The microprocessor may compare the desired program set to the default program set in order to calculate the efficiency of a HVAC system. The calculated efficiency is then displayed graphically on the display panel.

Abstract: A thermostat (10) includes a housing (11) having a control panel (13) with a plurality of manually selectable input elements or input keys (15) and a display panel (17) for displaying various functions of the programmable thermostat. The programmable thermostat also includes a temperature sensor (18), a microprocessor (19) having memory for storing a default program set of default temperature and time values and a desired program set of desired temperature and time values. The thermostat also includes a “SAVE AWAY” feature or mode of operation. The SAVE AWAY mode is intended to be used so that the HVAC system operates as if the user is away from the house through the manual operation of the SAVE AWAY input key, even though the normal schedule program indicates that the user should be “home”. In use, the SAVE AWAY mode of operation overrides the program set associated with a normal schedule.