Question about : Combustion complete or not? Smoke with door open or close

[daoledaole]

Jotul F55 v2 rookie is learning from this wonderful forum......
Like two videos, even if woods look like charred black color , as long as they’re not producing smoke, does that mean no creosote is being created?
Also, why does smoke appear when I open the stove door, but not when the door is closed (I checked carefully with a flashlight)?
Since opening the door allows more air in, shouldn’t combustion be more complete and there be less smoke, not more?

 

[NickW]

Creosote is created by low temperature (under 250 degrees) and is made worse with excessive moisture causing condensation. Once properly charred and up to temperature the wood is creating smoke but it is basically immediately combusted. Smoke going up the flue doesn't automatically mean creosote is being created; however, it does mean that the fuel (volatiles/smoke) aren't being completely combusted thereby wasting fuel (smoke). Opening the door lowers the firebox temperature causing incomplete combustion by evidence of the smoke and sends cool air up the flue cooling it. Remember that the flue is the engine that runs the system. Adequate flue temperature is required to maintain draft and inhibit creosote formation.

 

[NickW]

Creosote is created by low temperature (under 250 degrees) and is made worse with excessive moisture causing condensation. Once properly charred and up to temperature the wood is creating smoke but it is basically immediately combusted. Smoke going up the flue doesn't automatically mean creosote is being created; however, it does mean that the fuel (volatiles/smoke) aren't being completely combusted thereby wasting fuel (smoke). Opening the door lowers the firebox temperature causing incomplete combustion by evidence of the smoke and sends cool air up the flue cooling it. Remember that the flue is the engine that runs the system. Adequate flue temperature is required to maintain draft and inhibit creosote formation.

 

[NickW]

Creosote is created by low temperature (under 250 degrees) and is made worse with excessive moisture causing condensation. Once properly charred and up to temperature the wood is creating smoke but it is basically immediately combusted. Smoke going up the flue doesn't automatically mean creosote is being created; however, it does mean that the fuel (volatiles/smoke) aren't being completely combusted thereby wasting fuel (smoke). Opening the door lowers the firebox temperature causing incomplete combustion by evidence of the smoke and sends cool air up the flue cooling it. Remember that the flue is the engine that runs the system. Adequate flue temperature is required to maintain draft and inhibit creosote formation.

 

[NickW]

Creosote is created by low temperature (under 250 degrees) and is made worse with excessive moisture causing condensation. Once properly charred and up to temperature the wood is creating smoke but it is basically immediately combusted. Smoke going up the flue doesn't automatically mean creosote is being created; however, it does mean that the fuel (volatiles/smoke) aren't being completely combusted thereby wasting fuel (smoke). Opening the door lowers the firebox temperature causing incomplete combustion by evidence of the smoke and sends cool air up the flue cooling it. Remember that the flue is the engine that runs the system. Adequate flue temperature is required to maintain draft and inhibit creosote formation.

 

[daoledaole]

Creosote is created by low temperature (under 250 degrees) and is made worse with excessive moisture causing condensation. Once properly charred and up to temperature the wood is creating smoke but it is basically immediately combusted. Smoke going up the flue doesn't automatically mean creosote is being created; however, it does mean that the fuel (volatiles/smoke) aren't being completely combusted thereby wasting fuel (smoke). Opening the door lowers the firebox temperature causing incomplete combustion by evidence of the smoke and sends cool air up the flue cooling it. Remember that the flue is the engine that runs the system. Adequate flue temperature is required to maintain draft and inhibit creosote formation.

Got it, thank you for the detailed and informative explanation.