It must be at least 15 years old and been reliable up to now. No gas is getting through so the burner is not starting. Plumber cleaned out small valve in hot water but said it is like something else to do with pilot. He also noted the fan is starting to grate. The crate seals are also starting to perish. Still waiting to hear back regarding cost/availability of parts. Is it really worth repairing it or getting a new boiler?