heating unit
41vacuum power unit — A device for use in opening doors in heating and air conditioning systems using vacuum as a source of power …
42HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… …
43interior design — 1. the design and coordination of the decorative elements of the interior of a house, apartment, office, or other structural space, including color schemes, fittings, furnishings, and sometimes architectural features. 2. the art, business, or… …
44Lloyd Groff Copeman — (28 December 1881 ndash; 5 July 1956) [cite web|title=www.lloydcopeman.com: Biography|url=http://www.lloydcopeman.com/biography/CopemanStory.pdf] was a prolific and successful American inventor who was responsible for devising the first electric… …
45electricity — /i lek tris i tee, ee lek /, n. 1. See electric charge. 2. See electric current. 3. the science dealing with electric charges and currents. 4. a state or feeling of excitement, anticipation, tension, etc. [1640 50; ELECTRIC + ITY] * * *… …
46evaporator — /i vap euh ray teuhr/, n. 1. a device in which evaporation takes place, as for thickening syrup. 2. the part of a refrigeration system in which the refrigerant absorbs heat and changes from a liquid to a gas. [1820 30; EVAPORATE + OR2] * * *… …
47automation — /aw teuh may sheuhn/, n. 1. the technique, method, or system of operating or controlling a process by highly automatic means, as by electronic devices, reducing human intervention to a minimum. 2. a mechanical device, operated electronically,… …
48Clothes dryer — A modern front load tumble clothes dryer for home application. A clothes dryer or tumble dryer is a household appliance that is used to remove moisture from a load of clothing and other textiles, generally shortly after they are cleaned in a… …
49San Diego Trolley — Current San Diego Trolley LRV Fleet Info …
50package — packageable, adj. /pak ij/, n., v., packaged, packaging. n. 1. a bundle of something, usually of small or medium size, that is packed and wrapped or boxed; parcel. 2. a container, as a box or case, in which something is or may be packed. 3.… …
