A rigid metal or flexible insulated tube, designed to deliver air to and from a furnace or other air-handling unit. Any kind of pipe or channel that carries water, wiring, or conditioned air …
Ductwork
A system of large tubes, pipes, or channels (ducts) designed to deliver air to and from a furnace or other air-handling unit. …
Dimple
To create a slight dent with a light blow of a hammer when driving a nail. This technique is typically used when hanging drywall to provide a tiny pocket for receiving drywall compound. …
Downspout
A vertical gutter that empties water from the roof to the ground. …
Dip Tube
An extension of the water supply line into a storage tank. This delivers water close to the heat source on the bottom of a water heater. …
Disability Insurance
An insurance policy that covers an individual's ability to produce income. …