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.