1867 - 1919. In 1917 Madam C.J. Walker was one of the wealthiest women in the United States. She developed a line of cosmetics and hair products especially for African-American women. She trained many women to become sales representatives. She once told a group of women,
Adding central air usually costs about $4,000 for 2,000 square foot home, if the home already has duct work in place. That price includes installation. If the home does not have ducts, the total cost could rise to as much as $8,000 to $10,000.Even though the price of central air is similar to a heat pump, donât forget that youâll also have to buy and maintain a furnace for heat.hat price includes installation. If the home does not have ducts, the total cost could rise to as much as $8,000 to $10,000. Even though the price of central air is similar to a heat pump, donât forget that youâll also have to buy and maintain a furnace for heat.
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.entral 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.