[email protected] Irving “Irv” Seltzer of Duncansville died Friday and is being remembered as a Blair County businessman, Rotarian, philanthropist and leader. “Irv never did anything halfway. He put his heart and soul into everything he did,” said Joe Hurd, president/CEO of the Blair County Chamber. “You don’t realize until after someone is gone the void that is left by his passing.” Altoona businessman Larry McAleer said he knew Seltzer as a client in his plumbing and heating business, as a Rotarian and friend. “I was really, really lucky to see a lot of Irv,” McAleer said. “Irv always seemed to be calm. He didn’t rattle. He was steady all the time.”