An open window should not cause any problems but if the kiln is large and or in a smaller room then the room should have additional ventilation.
Kiln room ventilation requirements.
A proper kiln vent hood relies on an adequate amount of makeup air being allowed to flow into the room either under doors through open windows or doors or through inlet vent openings in a room wall or roof.
Depending on what you are firing a kiln firing can produce toxic fumes or disperse heavy metals into the room.
See the btu chart located on the general dimension drawing of the kiln model.
Kiln room ventilation and safety is common concern for artists and instructors.
Kiln rooms are large enough to handle the heat created by the kiln.
Proper set up and usage.
Kiln room specifications have been provided to contractors and district employees so that the kiln rooms are created with standards.
Ventilation i have a room fan i will also be using a kiln vent i am going to manually vent the kiln but i have adequate room ventilation for this.
Look up the amount of btu hour that your kiln kill give off.
And of course a kiln that is firing can make the room uncomfortably hot.
And for good reason kilns emit gases that irritate the lungs.
Flammability issues i can install the kiln at least 12 away from any wall.
A small electric kiln in a large room with adequate ventilation i e.
How to calculate ventilation requirements for removing heat from a kiln room.
Kiln vent hoods are most useful at protecting people in the kiln room from harmful gases coming off the kiln during a firing.
Kiln rooms must always be set up as a safe environment.
My kiln room floor is non flammable.