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.
Heat pumps are best suited for climates with moderate heating and cooling needs; for colder regions, a dual-fuel system pairs a heat pump with a back-up fossil-fuel furnace. Typical costs: Installing a small through-the-wall or window unit air-source heat pump to cool and heat a single room costs about $500-$2,000. 1  Expect to pay about $2,000-$8,000 for installation of a whole-house air-source heat pump system in an average home (three-ton capacity) with existing usable ductwork. The total costs can double or triple to $4,000-$24,000 or more if new ductwork must be installed or failing ductwork must be replaced.