Just something I remember from the biomass course, I know diameter of the flue cannot be smaller than part J, as some pellet stoves come with an 80mm outlet whereas part J specifies 100mm minimum due to cleaning and maintenance etc pretty sure min. flue height would be the same although not 100%
I remember double checking it because of the different stance compared to most other fuel types.
I remember double checking it because of the different stance compared to most other fuel types.