They also put in central air-conditioning and keep the windows closed most of the summer.
The growth in demand is partly the result of the new housing, which almost always comes with central air-conditioning, he said.
For a house with central air-conditioning, the saving would be about $9 a month.
The project nearly complete, we decided on one final indulgence - central air-conditioning.
For the first time, the building will have central air-conditioning and heating.
All have central air-conditioning and so they require a great deal of energy to operate.
Then came the summer of '88 and our conversion to central air-conditioning.
Some have central air-conditioning to keep dust out of their house.
The rooms are standard issue, with central air-conditioning and showers.
Whatever the case, the house needs efficient central air-conditioning and heat.