This not only reduces chances of backdrafting, but it eliminates chilly drafts and improves overall efficiency. Without it, burning a raging fire in an efficient airtight house can cause a furnace and water heater to backdraft. These ducts can lead to another room or can be attached to your central furnace duct system. Update Bulletin No. While I was at my home center store yesterday, I saw some inexpensive faucet aerators that screw on the end of the faucet.
Aerators save water by mixing air with the water for a forceful flow using less water.
If you are filling a container with water, however, it just takes longer and saves no water. The savings are realized when you are washing your hands, dishes, etc. For these activities, the length of time that the water is on will be the same with or without the aerator.