How did the HVAC technician increase his efficiency?... business energy house job seeing Please Rate Vote 1 Vote 2 Vote 3 Vote 4 Vote 5 Today's featured daily humor:How did the HVAC technician increase his efficiency? He finally got all his ducts in a rowClick for another laugh! Previous article: What do you call an English teacher hooked on opiates?... Prev Next article: If at first you don't suck seed...... Next