Dealing with large quantities of coal as the temps stay down around here. The time it takes to let the coals burn down is hurting the ability to keep the house bearable. Tonight I am tidying up around the stove and got a bright idea. I took the vacuum cleaner hose and hooked it to the exhaust outlet and then lodged the other end of the hose into the main air inlet on the 30NC. Piled all the coals to the front as high as possible, closed the door and opened the main air to max. Hit the power on the vac and was really pleased with the effect. After about 90 seconds, the pile was settlling inoto itself as the coals burned away. Let it run like that for 5 or so minutes and went through the process again of stacking up the coals etc. 3 cycles of that and what was 3 or 4 gallons of coal became a proper bed for a reload. I did go out and check for sparks exiting the stack and there was none. The bright white coals burned with a green flame shooting from them. Best part was no shoveling them into the can. Just don't forget to remove the hose when done!