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  2. Wax thermostatic element - Wikipedia

    en.wikipedia.org/wiki/Wax_thermostatic_element

    Cooling circuits have a small bypass path even when the thermostat is closed, usually by a small hole in the thermostat. This allows enough flow of cooling water to heat the thermostat when warming up. It also provided an escape route for trapped air when first filling the system.

  3. Thermal cutoff - Wikipedia

    en.wikipedia.org/wiki/Thermal_cutoff

    Unlike a thermal fuse, a thermal switch is usually reusable and is therefore suited to protecting against temporary situations which are common and user-correctable. Thermal switches are used in power supplies in case of overload, and also as thermostats, and overheat protection in some heating and cooling systems. They are found in virtually ...

  4. What should you set your heat to in the winter? Avoid ... - AOL

    www.aol.com/set-heat-winter-avoid-thermostat...

    For that reason, the average Energy Star-certified smart thermostat can save about 8% of a homeowner's annual heating and cooling bills, according to Consumer Reports. Check for tax incentives and ...

  5. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    A thermostat exerts control by switching heating or cooling devices on or off, or by regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. A thermostat can often be the main control unit for a heating or cooling system, in applications ranging from ambient air control to automotive coolant control.

  6. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible.A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator.

  7. Heat recovery ventilation - Wikipedia

    en.wikipedia.org/wiki/Heat_recovery_ventilation

    Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

  8. Deck the halls (extra carefully): Common Christmas injuries ...

    www.aol.com/deck-halls-extra-carefully-common...

    Anyone who’s seen December classics like “Home Alone” or “National Lampoon’s Christmas Vacation” knows that holiday decor can pack a punch: Tree baubles turn to glass-shard booby traps ...

  9. Sydney Couple 'Targeted' in 'Double Murder' Over Possible ...

    www.aol.com/sydney-couple-targeted-double-murder...

    Australian homicide detectives are investigating the suspected "targeted double murder" of a Sydney couple. On Tuesday, Dec. 17., New South Wales (NSW) police confirmed a second body had been ...

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