90% Furnace venting. Posted on August 22, 2012 by Andy. With these higher efficiency furnaces, came some other considerations. The 90% implies that 90% of the heat that is put into the furnace is transferred into the duct system and subsequently into the homes living space leaving only 10% going out the exhaust.
The definition of a direct primary election is when people vote for candidates of their political party by direct vote instead of by delegates at a convention.
A primary where voters directly select the candidates who will run for office. Classified under: Nouns denoting acts or actions. Hypernyms (direct primary is a kind of...): primary; primary election (a preliminary election where delegates or nominees are chosen) Hyponyms (each of the following is a kind of direct primary): closed primary (a primary in which only registered members of a particular political party can vote) open primary (a primary in which any registered voter can vote (but must vote for candidates of only one party))