movemaine
Minister of Fire
Since us Harman fans are off topic together... Longest I've went on decent pellets was 4 weeks, which was at least 60-80 bags. Try not to go longer for cleaning purposes.
I have an Accentra insert (so a very very small ash pan) - I've gone up to 2 weeks withoiut emptying, but it was the cleanest pellets possible.