Do you have protocol that youve written up Somewhere?
Protocol? Not much to it really. Measure your space - height, width, and length. Multiply the measurements together to come up with the volume. If you measure in inches, convert to meters (m). Take your m³ volume and multiply it by 0.135 kg/m³. That will give you the
minimum amount of charcoal to use in kilogram. If you want pounds, just use an online converter. Multiply the amount you calculated by at least 3 just to be safe. You can certainly use more with no issues.
Light charcoal outside and get it burning red-hot. Chimney starters work well for that. Once red-hot, transfer charcoal to metal pails and take into your space and set them on something that doesn't conduct heat well, such as bricks. Close up space and let CO build up for around 20 minutes. Next step is to go into space, close opening quickly, and take a few deep breaths.
A tent works good for a space. So does a small room. A vehicle could work, also. The smaller the better. Seal up any vents or windows. You can use plastic sheeting and tape.
Don't use a room if it's attached to another person's home (apartment), or if people are in your own home.
Use good quality charcoal. Lump type seems to be preferred. That's what I have. 100% carbon if you can get it.
If you can afford it, buy a CO analyzer that is capable of measuring CO levels up to 10,000 ppm (parts per million). They run around $300 US. With this device, you are able to conduct a "test run" to make sure you can get the CO level up to a very high amount, and, if not, make changes (seal better, more charcoal) to your plan. 10,000 ppm, or more, is what you should be shooting for. It allows for a very quick time to unconsciousness, followed by death, shortly thereafter. Lower amounts will certainly kill you, but you will remain conscious longer, and *may* have to deal with, and suffer, some of the effects of CO poisoning until you breath in enough to render you unconscious.