An open-loop solar heating system in which the heat transfer fluid from the collector loop and the piping drain into a drain whenever freezing conditions occur.
Drapery
An arrangement of window coverings; curtains.
Drapery pocket
The trimming that conceals the drapery hardware.
Draw
(1) Payments taken from a construction loan to be made to suppliers or subcontractors. (2) To write a check, money order or draft or to compose and write a document such as a contract, deed, petition or will. (3) To create pictures on a surface; to write. (4) To pull
Draw filing
Drawing and pushing alternately across a surface to obtain a smooth finish.
Drawdown
The distance the water level drops below the standing water level while the pump is operating.
Drawer
A sliding box in a bureau, chest, etc. that can be moved in and out.
Drawer pull
Handle used on the front of a drawer to permit opening and closing.
Drawing
(1) The art of representing something by lines made on a surface with a pen or pencil. (2) Hammering or pulling metal through dies to spread or lengthen it. (3) Pulling along.
Drawing detail
A top view drawing, of a building or roof showing the roof perimeter and indicating the projections and roof mounted equipment, drawn to scale.
