In my Biomass my flap bolt came loose which caused creosote to drip into my heat exchangers. The lever to the corkscrews to clean the tubes is frozen and hardly any air is circulating though any of them. Is there some sort of industrial creosote remover I can use and dump down the tubes? I also have an access at the bottom of the boiler at the lower end of the tubes. It will be a big job to remove each corkscrew, but still I need to get them loose. Any ideas?
Bob
Bob