If you have a manometer hooked up, so you can tell if the chimney flue's horizontal runs and lower elbows get clogged with flyash, then burn untill you have to clean out the flue pipes..
If you don't have a way to monitor your draft, then after a month, I'd clean the pipes, and note the amount of flyash. if it's minimal, go two months the next time.. soon you will figure out a cleaning schedule.
the stove itself only needs the ash pan and the grates kept clear of excess ash.
If you have 'TEEs' for elbows with the unused part capped, you can usually remove the cap, run a shop vac up the flue and reinstall the cap in just about the time to read this sentence.