now i looked all around the site and cant really find a answer, on my jotul fc3b it came with a screen to have fires with door open, can this be done or is just a way to send heat right up the chimeny and not into the house? what if it is a little warmer out and i want the house not so hot or warm is it then a good idea to open the door and use screen? what is the point in the screen if it can never be used? i kind of like the idea of occasionally having a fire with door open do i need to have a window open or a fan on in another room to help? thanks