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  2. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    New cars produced in the early 1990s contained the new refrigerant in their air conditioning systems. Owners of older cars with R-12 systems would either have to invest in an R-12 to R-134a conversion system, buy a new car, or find a qualified technician to recharge their older R-12 system. R-134a has been used in cars for almost 30 years.

  3. Heat pump - Wikipedia

    en.wikipedia.org/wiki/Heat_pump

    Specifically, the heat pump transfers thermal energy using a heat pump and refrigeration cycle, cooling the cool space and warming the warm space. [1] In winter a heat pump can move heat from the cool outdoors to warm a house; the pump may also be designed to move heat from the house to the warmer outdoors in summer.

  4. List of Chevrolet vehicles - Wikipedia

    en.wikipedia.org/wiki/List_of_Chevrolet_vehicles

    Chevrolet's mid sized car that replaced Series CA Master AK: 1941 1947 GM A: 1 Light-duty pickup truck sold in conventional or COE configurations Deluxe: 1941 1952 GM A: 1 Passenger car sold as a coupe, convertible, sedan, and station wagon Fleetmaster: 1946 1948 GM A: 1 Passenger car sold as a coupe, convertible, sedan, and station wagon ...

  5. How do heat pumps work? What to know about installation ... - AOL

    www.aol.com/news/heat-pumps-know-installation...

    For ductless heat pumps, the most popular in Minneapolis, it's $6,000 to $7,000 per house zone, while forced air heat pumps cost between $10,000 to $20,000, depending on the model. A traditional ...

  6. List of automobiles manufactured in the United States

    en.wikipedia.org/wiki/List_of_automobiles...

    The following is a list of passenger automobiles assembled in the United States. Note that this refers to final assembly only, and that in many cases the majority of added value work is performed in other regions through manufacture of component parts from raw materials.

  7. Are heat pumps the key to accelerating the energy transition?

    www.aol.com/news/heat-pumps-key-accelerating...

    According to Adams, since the manufacturing and installation process for ACs and heat pumps are almost the same, upgrading from an AC to a heat pump of the same model would only cost an extra $300 ...

  8. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Electrical heaters are often used as backup or supplemental heat for heat pump systems. The heat pump gained popularity in the 1950s in Japan and the United States. [14] Heat pumps can extract heat from various sources, such as environmental air, exhaust air from a building, or from the ground. Heat pumps transfer heat from outside the ...

  9. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]