Does vent time not apply if not using a vessel? Edit - ah this is to vent all the steam out from the oven?
I'm guessing with my steam oven it's 3 mins of convection and steam and then rest of time just convection (with a break to vent the oven). Also my steam oven only goes to 450 so I might have to cook a little longer.
I have a program option that takes the weight of the loaf - starts with steam and produces amazing artisan style bread - but that takes longer then 25 mins - it's more like 38 mins for 1 lbs loaf.
Guessing there's more detail in the section on ovens?