Vents from groud floor to first floor

Hi I would advise you didn’t do any of this yourself. Whoever installs your log burner’s will have to check the ventilation requirements for each appliance. Depending on the room sizes/burner outputs, additional permanent ventilation may be required. A calculation is done to determine the ventilation levels needed, If you add additional vents fanned into other rooms it will change the original ventilation requirements. Also you would have to factor in any ventilation requirements for the rooms that the heat is blown into. Adding fans to any room with a burning appliance, either gas or solid fuel needs to be checked by a qualified professional. Can be potentially dangerous if not 👍