Thanks all for the input.
I'm in the process of letting the coal run out. If by Thursday morning it is not emty, going to shut the blower off so as to have no fire by Saturday. If I can give a cleaning then, I will, if not, I'll do it when I get back from vacation.
The first time for shutting down. Learning as I go. Thanks for all the help, sure there will be more questions in the future.
The only trouble of shutting down the coal, is I have to use the oil boiler