Even a new, minimum efficiency air conditioner or furnace can be a significant jump in efficiency. The old furnace in your basement may only be originally rated at 60% to 70% AFUE. In order to comply with national regulations, furnaces manufactured today have to be rated at a minimum of 80% AFUE.
dipole - a pair of equal and opposite electric charges or magnetic poles separated by a small distance. couple - (physics) something joined by two equal and opposite forces that act along parallel lines. electric dipole, electric doublet - a dipole with equal and opposite electric charges.
(vÄ«â²Él, vÄ«l) n. A small container, usually with a closure, used especially for liquids. tr.v. viÂ·aled, viÂ·alÂ·ing, viÂ·als or viÂ·alled or viÂ·alÂ·ling. To put or keep in or as if in a vial. [Middle English viole, variant of fiol; see phial.]