On 08/02/2021 13:20, Jeff Layman wrote:
In particular, when first lighting a wood fire, the Morso says that only
secondary air is used;

I find that the lever that controls air jams with ash and has to be
tapped to move it. As I never use it with coal I suspect the primary air
passage is blocked because if I push the lever left the fire goes out.

Anyway I find lighting this fire almost impossible without the air
control fully to the right and the door seal cracked open.