toorrow night will be my last day Seeking help with charcoal burning co method

[Escapee]

Hello every one I tried the charcoal burning method once before the room I had some holes right under the roof and I did get any result. This time I found a room with no holes any where. The only problem is its quite big around 80 cubic meter ( 5m long 4m wide and 4m high) there is an adjacent room next. I have Iprepared 4 charcoal burning stoves each can burn a kilo of charcoal at once. My plan is to burn the charcoal on all 4 stoves in the next room and bring the in after they are glowing red and stay in the next room for some time then get inside and seal the door. I don't want to try to sleep because the charcoal may not be enough to produced reliable amount of co with my room size so I will stay a wake and add more and more charcoal on all the four stoves every 15 minutes or so My question is will I be able to endure the CO to do that while I am awake? And how many kilos of charcoal will I need to produce enough CO to send me away for good the charcoal I will be using is made locally from burned wood under ground is it a good quality of charcoal? And Are there any tips from anyone knowing this method any suggestion will be appreciated. I am planning to do this tomorrow night so please I need quick responses thanks