I have an e-f-m coal stoker furnace and am searching for a service and repair person. The unit is probably 75 years old and I cannot locate a model number. The gentleman who always cleaned and serviced for me passed away and I've tried every listing on the e-f-m website. Seems no one in NEPA works on them any more. Any ideas? I do need parts replaced before the unit can be fired up for winter. Thanks for any suggestions!