Buy Hvac thermostat

Thermostats control the operation of HVAC systems, turning on the heating or cooling systems to bring the building to the set temperature. Typically the heating and cooling systems have separate control systems (even though they may share a thermostat) so that the temperature is only controlled "one-way". That is, in winter, a building that is too hot will not be cooled by the thermostat. HVAC Thermostats may also be incorporated into facility energy management systems in which the power utility customer may control the overall energy expenditure. In addition, a growing number of power utilities have made available a device which, when professionally installed, will control or limit the power to an HVAC system during peak use times in order to avoid necessitating the use of rolling blackouts. The customer is given a credit of some sort in exchange. A Lennox thermostat is a device for maintaining the temperature of a system within a range by controlling, either directly or indirectly, the flow of heat energy into or out of the system. On a steam or hot-water radiator system, the Lennox heat pump thermostat may be an entirely mechanical device incorporating a bi-metal strip. The T8611 (T8611G) Chronotherm IV Deluxe Programmable Heat Pump Thermostat provides electronic control of 24 Vac 2 heat, 1 cool heat pump systems. This Honeywell heat pump thermostat offers the highest quality temperature control for residential multistage heat pump systems and with full seven-day program capability; different schedules and temperature set-points may be selected for every day to fit any schedule. The Honeywell T8011R heat pump thermostat controls two-stage heating and one-stage cooling multistage heat pump systems. The large display is easy to read and indicates temperatures in either Fahrenheit or Celsius. The T8011R was designed with convenience in mind; the keys are located beside the display for easy access, but the "Fan" and "System" switches are located at the lower edge to prevent accidental setting changes. Program up to four time periods and enjoy automatic heating and cooling that maintain your comfort level. Permanent memory storage retains your programming, even in the event of a power failure.