Hi there, just got my Fire bricks and refractory cement, going to build my propane fueled forge it shall be a small enough one, big enough for knives and axe heads perhaps but mainly knives for now, I have no fear handling a torch or anything that is required to be done as a black smith/ knife smith, but I am scared of CO poisoning, so my main question is how can I make my forge as safe as possible? I will be using it outside in the open but should I still wear a mask and should I leave the back open? just a few bits like that I would love to have answered! thanks in advance guys.
edit: also I have a carbon monoxide alarm.