My furnace is old old old.. Day and night... Model # 30cc-8. Serial # 010170 062046. It seems as if the heat is getting cooler all of the sudden coming out of the vents. Also when I open the closet, one of the valves is leaking air quite badly. I know nothing about electric units. Anything I can do myself to fix or should I call a repair man? It's 32 degrees here with freezing rain... Please help..
Frustrated,
Marlena