Yes you do need a vent before it can be installed and commisioned,the room also needs to be at least 30m3 in volume.1 X100cm2 vent at low level or 2x50cm2 vents,1 high 1 low.I would also recommend putting in a CO detector within 1.5 and 2m from the fire and at about head height whilst sitting down.
It`s also a good idea for the installer to use a Flue Gas Analyser and check the quality of the air in the room once the fire is installed.
It would be a Very Good good idea to try and find the Manufacturers website and see if there are any additional instructions for your particular model.
I have to say,if it were me I wouldn`t install it,purely because there aren`t any manufacturers instructions.
It`s also a good idea for the installer to use a Flue Gas Analyser and check the quality of the air in the room once the fire is installed.
It would be a Very Good good idea to try and find the Manufacturers website and see if there are any additional instructions for your particular model.
I have to say,if it were me I wouldn`t install it,purely because there aren`t any manufacturers instructions.