nancy wrote:don't = Do not add wet coal
Unless harman has a specific reason for that you can burn wet coal. It may cause more corrosion than normal in something like a hopper but otherwise its not a problem. Ihave placard for my old van wert and they recommend that it be damp. What you don't want to do is run dripping wet coal.
do = have your boiler cleaned once a year and your stack
This varies by model, generally the large stoker boilers can go a year... You should check wherever it needs to be cleaned every few months during the first year to make sure the tolerances are enough to keep it from getting clogged.
BTW... DO GET A CO Detector.
You will most likely not need it but it just may save your life some day.