For Glenn, the historic voyage of Friendship 7 remains as vivid today as if it had happened yesterday. People still ask him what it felt like to be the first American to orbit the earth. And often he thinks of his capsuleâs breathtaking liftoff and those subtle, emotionally empowering sunrises and sunsets.
Air conditioning contractors will also ensure that the unit gets good airflow and is as energy efficient as possible, which will save money on energy bills. New window units cost about $200â$400, and wall air conditioner cost about $400â$900. Installation costs may include a minimum service fee, or they may be based solely on a professionalâs hourly rate. Central air conditioning systems. New central air systems are either packaged or split-system units.
Central Air Conditioning. The average cost to add a central, or whole-house, air conditioning system to a home ranged from about $2,200 to $2,800 in 2012, according to Homewyse data.Central air conditioners move cool air throughout a house through a duct system.Contractors usually link central air conditioners to the ducts of an existing home heating system. Average installation costs could double if a contractor has to add, or redo, duct work before installing a central air conditioner.entral air conditioners move cool air throughout a house through a duct system. Contractors usually link central air conditioners to the ducts of an existing home heating system. Average installation costs could double if a contractor has to add, or redo, duct work before installing a central air conditioner.