Method Carbon monoxide megathread

[LuzurPhagget]

I think my car is pretty damn sealed. It's been more than 4 hours and still has a CO reading of at least 999ppm. Not bad eh? I think I'm set for this Friday. 0

 

[passenger27]

I think my car is pretty damn sealed. It's been more than 4 hours and still has a CO reading of at least 999ppm. Not bad eh? I think I'm set for this Friday. 0

Good luck, man. Hope things work out for you.

 

[tehdisturbedone]

One memory I have was sleeping over at my friend Chethan's house when I was in the 6th grade. We we're all up night just watching tv and being dumb ass kids when my buddy Chethan heard a ton of noise coming from his garage at like 3 am at night. We opened the door only to find his older brother in the garage, and the garage was filled with so much smog/exhaust gas that you couldn't really see from one side to the other and my eyes burned so bad I couldn't keep them open at all. I remember he began yelling at his brother asking what the fuck he was doing and his bro just kind of looked right through him and shut his car off. At the time I had no idea what was going on but from how his older brothers life has turned out I know now. Keep in mind dude had a 64 1/2 289ci mustang and that thing wasn't enough to do the job in around 20-30 minutes. I might be mistaken though, so do your research.

 

[a.h]

One memory I have was sleeping over at my friend Chethan's house when I was in the 6th grade. We we're all up night just watching tv and being dumb ass kids when my buddy Chethan heard a ton of noise coming from his garage at like 3 am at night. We opened the door only to find his older brother in the garage, and the garage was filled with so much smog/exhaust gas that you couldn't really see from one side to the other and my eyes burned so bad I couldn't keep them open at all. I remember he began yelling at his brother asking what the fuck he was doing and his bro just kind of looked right through him and shut his car off. At the time I had no idea what was going on but from how his older brothers life has turned out I know now. Keep in mind dude had a 64 1/2 289ci mustang and that thing wasn't enough to do the job in around 20-30 minutes. I might be mistaken though, so do your research.

Was that in time when cars had catalytic converters? It takes long to fill up garage but most cars are just 3 cubic meters inside.

Someone sent a link earlier where it's said how fast normal size garage is filled with 1000ppm of CO with different things. Portable generators created highest amounts of CO. They create 50000ppm of CO. People have died just when plugging them so people would be knocked out fast being near to them in car and the air would become fast lethal inside car. A research of a suicide with gen (link earlier somewhere in this thread) said that the portable generator had stopped from lack of air when there was 3/4 of gasoline left.

 

[fightingsioux]

As long as the ppm maintains 800 or higher for 2-3 hours you will die. No contest. Lots of variables such as how good is the seal in a vehicle? Newer vehicles are WAY more sealed than older ones, the door jams have better rubbers, there aren't as many "cricks and cracks" around the vehicle. I did my test in a 2013 Chevy Cruze did nothing but close the air vents no tape no caulking no nothing and with 2 pounds of charcoal it rose to 999ppm in 3 and a half minutes. After it got to 999 I took it out, waited 2 full hours and put the same bucket of coals back in and it STILL rose to over 999ppm but it took 6 minutes and 55 seconds. What MANY people fail to understand is that if you jump in the car with those coals that level is going to continue to rise. There is no making sure it will no, it WILL it has no other choice in the matter. If I jump in the car right when it says 800ppm I got 2-3 hours to live, and the level is increasing so your time to live DECREASES the longer you stay in there. It probably went from 999 to 2000 in under 10 minutes so now you'd figure I'd have 25 minutes left of life at that point because now knowing 1600ppm will kill in 30 mins my time is steadily dropping the longer you're in because the level will continue to rise. People fail at this because either
1. They skimped on the charcoal
2. They have an old ass car with bad door/window seals and they failed to tape them off
3. They leave once they get nauseous
4. They wait HOURS before putting the coals in because it's "just too hot" and now your coals aren't as effective

An easy solution

Tape everything off
Get those coals gray
Once they are gray don't fuck around PUT them in the car and get in
Make sure you tape it all off. If you're questioning the amount of charcoal to use, 2-3 pounds will kill you in a car/truck/van. Hell double the amount of it what's stopping you?
Use thumbtacks and put aluminum foil on the roof so it doesn't burn and double down on your charcoal. If it gets too hot get a big bag of ice from the gas station and lay back on it in the seat.

People fail because they agonize every detail like "I need exactly this amount to kill me and just enough of this to hit this number and" yada yada. You're trying to DIE, you can't expect not to have a drop of sweat or a very slight discomfort. It's like hanging people say "well just before I pass out I feel this throbbing in my head HOW DO I PREVENT THAT" like dude, you have a rope around your neck trapping your blood up in your cranium, your head is going to throb. It's things like this you just have to deal with. The most successful suicides are the people who grab that bag of charcoal dump it into that bucket set it on fire roll the windows up and deal with the heat. They are the determined ones. The ones that say Hallelujah at the door and leave all bs aside they dump the bag in it light it and go. Comfort or not. Grab you an 8 pound bag from Walmart, put the whole bag in there, light it on fire, wait for it to stop smoking and roll on with it soldier. Grab some ice bags assuming it'll be hot because it will be, lay back on them bags watch some National Geographic for 10 minutes and pass out, because 8 pounds in a small family sedan is gonna have you out like a light before you get to see if Billy gets his arm back from that crocodile
Cheers
ALSO spread your coals around in whatever you dump them in. Put your thinking cap on if HEAT RISES and you have a bunch of coals piled on top of each other what's going to happen? Your top ones are going to get too much heat and they will disintegrate fast, covering your bottom coals in a very thick ash. Solution: dump them in a metal tray, use 2 if you have to. The chimney and setup does nothing if you have a massive amount of ash smothering your bottom coals. Spread em out a bit.

ROTFLMAO! Very good, very funny, smack on. "The people who succeed are determined." That says it all.

 

[tehdisturbedone]

Was that in time when cars had catalytic converters? It takes long to fill up garage but most cars are just 3 cubic meters inside.

Someone sent a link earlier where it's said how fast normal size garage is filled with 1000ppm of CO with different things. Portable generators created highest amounts of CO. They create 50000ppm of CO. People have died just when plugging them so people would be knocked out fast being near to them in car and the air would become fast lethal inside car. A research of a suicide with gen (link earlier somewhere in this thread) said that the portable generator had stopped from lack of air when there was 3/4 of gasoline left.

Catalytic converters weren't invented until the 70s when they began creating pollution laws

my time frame of reference at that age is completely skewed so who knows how long he sat there

 

[Cleopatra123]

"Powdered zinc can be mixed with calcium carbonate and heated to produce carbon monoxide." (PPeH)
This could be interesting for some of us, because some of us will find it alot easier to get those ingredients then sulfuric acid and this should be significantly more predictable then charcoal. This can simply be done with a hotplate on a timer in your bathroom.

May I ask please the quantities of each substance, how long it needs to be heated please.

 

[fightingsioux]

May I ask please the quantities of each substance, how long it needs to be heated please.

I'm going to tentatively disagree with Hannibal on this, but I could be wrong. I believe that the powdered zinc and calcium carbonate mixture must be heated to about 500 degrees Celsius (over 900 Fahrenheit) for the reaction to take place. This will not happen with a normal kitchen-type hotplate, you'd need a fairly serious laboratory/industrial unit, they're pricey.

Also, since it's an electric unit, you couldn't do it in your car, you'd have to use a small room, e.g. a bathroom. But even in a small bathroom, trying to use this reaction to attain at least 1% CO in the volume of air in the room I think would be difficult. Haven't even thought about the necessary amount of the two substances either!

IMHO, charcoal is easier.

 

[Cleopatra123]

I'm going to tentatively disagree with Hannibal on this, but I could be wrong. I believe that the powdered zinc and calcium carbonate mixture must be heated to about 500 degrees Celsius (over 900 Fahrenheit) for the reaction to take place. This will not happen with a normal kitchen-type hotplate, you'd need a fairly serious laboratory/industrial unit, they're pricey.

Also, since it's an electric unit, you couldn't do it in your car, you'd have to use a small room, e.g. a bathroom. But even in a small bathroom, trying to use this reaction to attain at least 1% CO in the volume of air in the room I think would be difficult. Haven't even thought about the necessary amount of the two substances either!

IMHO, charcoal is easier.

I can't use the bathroom as it is open from the neck up to a cathedral ceiling; but my small walk in closet was an idea. I had asked the question about removing the clothing, maybe things on the shelf, to the CO method. But I was concerned about the carpet, and the ceiling which is high, as it slopes up to the cathedral to about 9 feet. My problem here is where to burn the Firestarter so no one in the house, or neighbors will be alerted; it is autumn and too cold now to do it in a tent, and I have no car. Could I burn it in my room with the ceiling fan on and windows open? Thank you very much for your information; the chemicals would have been hard for me anyway.

 

[fightingsioux]

I can't use the bathroom as it is open from the neck up to a cathedral ceiling; but my small walk in closet was an idea. I had asked the question about removing the clothing, maybe things on the shelf, to the CO method. But I was concerned about the carpet, and the ceiling which is high, as it slopes up to the cathedral to about 9 feet. My problem here is where to burn the Firestarter so no one in the house, or neighbors will be alerted; it is autumn and too cold now to do it in a tent, and I have no car. Could I burn it in my room with the ceiling fan on and windows open? Thank you very much for your information; the chemicals would have been hard for me anyway.

That's a hard question to answer, it really would depend on the air dynamics of your room. Truthfully, off the top of my head, I would say no because there is quite a bit of smoke. Maybe if you put it on a table right in front of the window, as close as you could get.

Charcoal is cheap. Why not do a test run? Do you have a metal bucket, or could you get one? If so, fill it with water and put it on the table. When you're doing your test run, if the room gets too smoky just dump the coals into the water.

OT: Just curious, is English your second language?

 

[Cleopatra123]

That's a hard question to answer, it really would depend on the air dynamics of your room. Truthfully, off the top of my head, I would say no because there is quite a bit of smoke. Maybe if you put it on a table right in front of the window, as close as you could get.

Charcoal is cheap. Why not do a test run? Do you have a metal bucket, or could you get one? If so, fill it with water and put it on the table. When you're doing your test run, if the room gets too smoky just dump the coals into the water.

OT: Just curious, is English your second language?

That's an excellent idea. I will have to order everything, I think all is available on the web. What material and size should the bucket be: and am I correct that I place the bucket into a pan of water on top of something like bricks. Was my English that poor; lol, no English is my first language. Thank you very much, I have been reading, and thinking for a few months and am running on empty. Oh, should I be concerned about anything in the closet, or carpet catching on fire, it is a very sealed and small place

Was that in time when cars had catalytic converters? It takes long to fill up garage but most cars are just 3 cubic meters inside.

Someone sent a link earlier where it's said how fast normal size garage is filled with 1000ppm of CO with different things. Portable generators created highest amounts of CO. They create 50000ppm of CO. People have died just when plugging them so people would be knocked out fast being near to them in car and the air would become fast lethal inside car. A research of a suicide with gen (link earlier somewhere in this thread) said that the portable generator had stopped from lack of air when there was 3/4 of gasoline left.

Just reading all the circumstances, why can't a person use a portable generator in a room; what's the necessity of the garage; I assume the windows of the car were opened.

 

[fightingsioux]

That's an excellent idea. I will have to order everything, I think all is available on the web. What material and size should the bucket be: and am I correct that I place the bucket into a pan of water on top of something like bricks. Was my English that poor; lol, no English is my first language. Thank you very much, I have been reading, and thinking for a few months and am running on empty. Oh, should I be concerned about anything in the closet, or carpet catching on fire, it is a very sealed and small place

Any steel bucket, about 3 gallons or so, very common at any hardware store. Fill it about halfway with water, put it on the table. I assume you've read the thread and understand how to use the charcoal chimney starter. As I said before, if the room gets too smoky just dump the charcoals into the bucket.

If it's not too smoky you know it should work. Next time ,in the closet, put the same bucket in a small pan of water sitting on some bricks. Light the coals in the chimney and put it by the window. When they turn grey, dump them into the bucket. Close the door, maybe a towel or something at the bottom.

 

[Cleopatra123]

That's an excellent idea. I will have to order everything, I think all is available on the web. What material and size should the bucket be: and am I correct that I place the bucket into a pan of water on top of something like bricks. Was my English that poor; lol, no English is my first language. Thank you very much, I have been reading, and thinking for a few months and am running on empty. Oh, should I be concerned about anything in the closet, or carpet catching on fire, it is a very sealed and small place

Just reading all the circumstances, why can't a person use a portable generator in a room; what's the necessity of the garage; I assume the windows of the car were opened.

PS: What are the necessary Watts, and ? if one were to use one in a room?

 

[fightingsioux]

PS: What are the necessary Watts, and ? if one were to use one in a room?

Rather than try and inaccurately summarize things, the subject of generators used indoors is completely covered in the mega-thread. Just start at the beginning of the thread, take your time, relax, read through the thread. Take notes when you find the info that you're looking for.

 

[DeepSleep]

I'm considering it over other methods (like partial). I've been delaying and procrastinating lately but this is really going nowhere and I think it's time to grab myself by the balls.

How would you start the coals in a city apartment, guys? Yes, I can probably start them outside and then bring indoors, but it sounds clumsy.
Probably can buy a metal bucket and gradually burn the coals one by one (to reduce the overall smoke) and toss them in the bucket.
More ideas?

 

[fightingsioux]

I'm considering it over other methods (like partial). I've been delaying and procrastinating lately but this is really going nowhere and I think it's time to grab myself by the balls.

How would you start the coals in a city apartment, guys? Yes, I can probably start them outside and then bring indoors, but it sounds clumsy.
Probably can buy a metal bucket and gradually burn the coals one by one (to reduce the overall smoke) and toss them in the bucket.
More ideas?

This is completely covered in the mega-thread, in many posts. Just start at the beginning, take notes when you find helpful info.

 

[Cleopatra123]

Rather than try and inaccurately summarize things, the subject of generators used indoors is completely covered in the mega-thread. Just start at the beginning of the thread, take your time, relax, read through the thread. Take notes when you find the info that you're looking for.

Thanks, will read more carefully.

Any steel bucket, about 3 gallons or so, very common at any hardware store. Fill it about halfway with water, put it on the table. I assume you've read the thread and understand how to use the charcoal chimney starter. As I said before, if the room gets too smoky just dump the charcoals into the bucket.

If it's not too smoky you know it should work. Next time ,in the closet, put the same bucket in a small pan of water sitting on some bricks. Light the coals in the chimney and put it by the window. When they turn grey, dump them into the bucket. Close the door, maybe a towel or something at the bottom.

Thank you, all very clear, but I do recall reading to put something like cement tiles, or bricks, under the pan, to protect the flooring from catching fire as the pan gets very hot.

 

[passenger27]

I can't use the bathroom as it is open from the neck up to a cathedral ceiling; but my small walk in closet was an idea. I had asked the question about removing the clothing, maybe things on the shelf, to the CO method. But I was concerned about the carpet, and the ceiling which is high, as it slopes up to the cathedral to about 9 feet. My problem here is where to burn the Firestarter so no one in the house, or neighbors will be alerted; it is autumn and too cold now to do it in a tent, and I have no car. Could I burn it in my room with the ceiling fan on and windows open? Thank you very much for your information; the chemicals would have been hard for me anyway.

I wouldn't suggest lighting a chimney starter inside the house. It's going to throw off a LOT of smoke when you 1st light it. After it burns down some it won't smoke, but it's still going to be on fire for quite a while. I guess it's possible you could sit the chimney starter (in some sort of pan on bricks of course) by the window if the fan were to hit it just right, but I'd trust an oscillating fan more than a ceiling fan. Also, you're going to stir up the charcoal in the chimney starter, and some hot embers could fly out and burn your floor or fly out the window. But regardless of how you push the smoke out the window, there's no way the neighbors couldn't see the smoke unless they were in total ignorant bliss, so if you'd be willing to chance that, then I'd just burn the chimney starter outside, wait an hour to an hour and a half, tip the charcoal into a steel bucket as it says many times in this thread, and take it in the house and put it on cinderblocks or something similar. I used 12 x 12-inch stepping stones in my van and they worked great, without having to put a pan of water under the bucket.


It's not the ceiling I'd worry about, but the floor. I caught the grass in my yard on fire 2 different times tipping coals in a bucket. I probably dumped them too fast and got clumsy, since I had to worry about nosy neighbors, but it's something else that could go wrong.

I'd be careful in the closet if that's where you plan on CTB. I've read a few articles where people's SI overtook them even though they were barely conscience on benzos and they knocked the bucket of coals over thrashing around. Also, depending on your size closet, it's going to get extremely hot in there. I have an old Chrysler Town & Country van that's 13 feet long, 4 feet high, and a little over 5 feet wide, and I stuck a thermometer in there with my CO meter and it got to 101 degrees Fahrenheit in 30 minutes. To be fair, I had 3 steel buckets in there (I like to go big time), but still...it's going to be very hot.

Hope this helps, & good luck.

 

[Cleopatra123]

I wouldn't suggest lighting a chimney starter inside the house. It's going to throw off a LOT of smoke when you 1st light it. After it burns down some it won't smoke, but it's still going to be on fire for quite a while. I guess it's possible you could sit the chimney starter (in some sort of pan on bricks of course) by the window if the fan were to hit it just right, but I'd trust an oscillating fan more than a ceiling fan. Also, you're going to stir up the charcoal in the chimney starter, and some hot embers could fly out and burn your floor or fly out the window. But regardless of how you push the smoke out the window, there's no way the neighbors couldn't see the smoke unless they were in total ignorant bliss, so if you'd be willing to chance that, then I'd just burn the chimney starter outside, wait an hour to an hour and a half, tip the charcoal into a steel bucket as it says many times in this thread, and take it in the house and put it on cinderblocks or something similar. I used 12 x 12-inch stepping stones in my van and they worked great, without having to put a pan of water under the bucket.


It's not the ceiling I'd worry about, but the floor. I caught the grass in my yard on fire 2 different times tipping coals in a bucket. I probably dumped them too fast and got clumsy, since I had to worry about nosy neighbors, but it's something else that could go wrong.

I'd be careful in the closet if that's where you plan on CTB. I've read a few articles where people's SI overtook them even though they were barely conscience on benzos and they knocked the bucket of coals over thrashing around. Also, depending on your size closet, it's going to get extremely hot in there. I have an old Chrysler Town & Country van that's 13 feet long, 4 feet high, and a little over 5 feet wide, and I stuck a thermometer in there with my CO meter and it got to 101 degrees Fahrenheit in 30 minutes. To be fair, I had 3 steel buckets in there (I like to go big time), but still...it's going to be very hot.

Hope this helps, & good luck.

Yes, very helpful thank you. The back yard faces another neighbor's windows, if there is that much smoke they might call the fire dept. Yuk! And there are other people in my house up late, I'd have to pass them going in and out and they are sure to notice. I may have to find something simpler I guess, but I'm confined by illness, and the search has been very difficult, and I need to find a way soon. Thanks again for your time.

 

[fightingsioux]

Yes, very helpful thank you. The back yard faces another neighbor's windows, if there is that much smoke they might call the fire dept. Yuk! And there are other people in my house up late, I'd have to pass them going in and out and they are sure to notice. I may have to find something simpler I guess, but I'm confined by illness, and the search has been very difficult, and I need to find a way soon. Thanks again for your time.

I'm also an older person with health problems. Try reading the entire Exit Bag and Inert Gas megathread. (Again: slowly, carefully, calmly, taking notes as you go along.) If you cannot go out, as you suggest, all necessary supplies can easily be ordered online. It's a relatively simple, easily-done, quiet and private, painless method that you would have no trouble accomplishing in the comfort of your room--no need to huddle in your closet!

 

[Cleopatra123]

I'm also an older person with health problems. Try reading the entire Exit Bag and Inert Gas megathread. (Again: slowly, carefully, calmly, taking notes as you go along.) If you cannot go out, as you suggest, all necessary supplies can easily be ordered online. It's a relatively simple, easily-done, quiet and private, painless method that you would have no trouble accomplishing in the comfort of your room--no need to huddle in your closet!

Thank you so much for sharing, and your obvious empathy. I will do that. I wish you the best in this challenging necessity.

 

[a.h]

That's an excellent idea. I will have to order everything, I think all is available on the web. What material and size should the bucket be: and am I correct that I place the bucket into a pan of water on top of something like bricks. Was my English that poor; lol, no English is my first language. Thank you very much, I have been reading, and thinking for a few months and am running on empty. Oh, should I be concerned about anything in the closet, or carpet catching on fire, it is a very sealed and small place

Just reading all the circumstances, why can't a person use a portable generator in a room; what's the necessity of the garage; I assume the windows of the car were opened.

Most portable generators are loud almost as loud as car engine. Inside cars trunk they don't make much noice to outside it. I haven't found a place to buy sound box for the gen.

I have cheap portable generator (200$/€) but it is quietest from the ones sold in my country. Someone said that there are very quiet portable generators (without converters) in USA. But they are much more expensive.

I think that people have used carages since they smell little bit always like that. No difference afterwards and people generally use loud machinery in garages. But it takes only about 10-20 min to fill car with 12000ppm CO.

 

[passenger27]

Most portable generators are loud almost as loud as car engine. Inside cars trunk they don't make much noice to outside it. I haven't found a place to buy sound box for the gen.

I have cheap portable generator (200$/€) but it is quietest from the ones sold in my country. Someone said that there are very quiet portable generators (without converters) in USA. But they are much more expensive.

I think that people have used carages since they smell little bit always like that. No difference afterwards and people generally use loud machinery in garages. But it takes only about 10-20 min to fill car with 12000ppm CO.

That's not bad at all. I used probably 20-25 lbs charcoal in my van and it took an hour & 30 minutes to reach 7525 ppm. Still very lethal but if you're in a hurry it leaves something to be desired to burn charcoal, dump them in pails, put them in the vehicle, etc...

 

[CaptainT]

My failure with the CO method, burning 2kg coals in a chimney starter then putting the bucket in a small car:

https://sanctioned-suicide.net/threads/i-failed-with-co-method-last-night.25448/

 

[Moonicide]

I plan on ending my life soon... My plan is to get two buckets and fill them with coal using the chimney starter method, get in my closet and duct tape it. Will I be able to succeed with this plan? I'm so worried it might not work given other people's experiences.

 

[passenger27]

I plan on ending my life soon... My plan is to get two buckets and fill them with coal using the chimney starter method, get in my closet and duct tape it. Will I be able to succeed with this plan? I'm so worried it might not work given other people's experiences.

It seems like you have all your bases covered. It's going to get hot in there so be ready for that. Have some ice packs and cold water. Maybe a water bottle to spray yourself with.

The bad thing about this method is I've read of people knocking the buckets over from thrashing around even while unconscious, or somehow opening the door. Your SI is a hard thing to overcome. Personally I think a vehicle would be best for this method just because you wouldn't have to worry so much about kicking the buckets over, long as you got the buckets in safely. Two buckets in a car would take you out quickly I'd think, long as it was sealed properly. If you don't have access to a car and have to do it in your closet, I'd get as drunk as I could and take as many benzos as possible without hurling. Or a couple bottles of NyQuil. I guess it really comes down to how much willpower you have to overcome that damn SI that screws so many of us up.

 

[a.h]

PS: What are the necessary Watts, and ? if one were to use one in a room?

The only reason not to is if you live in apartment with neighbours next door. They are almost as loud as car engine.
But inside car trunk with top open the noise is not bad at all (lower or same than the car engine sound).

With the loud noise and gasoline smell (CO don't smell but the generators smell like gasoline) coming from the house would surely draw attention to neighbors.

On the other hand garages often smell like that and people use loud machinery there all the time. If the gen is inside the car in garage there is barely any noise outside. And if the car is outside the sound is less than engine sound to outside.

The only reason not to is if you live in apartment with neighbours next door. They are almost as loud as car engine.
But inside car trunk with top open the noise is not bad at all (lower or same than the car engine sound).

With the loud noise and gasoline smell (CO don't smell but the generators smell like gasoline) coming from the house would surely draw attention to neighbors.

On the other hand garages often smell like that and people use loud machinery there all the time. If the gen is inside the car in garage there is barely any noise outside. And if the car is outside the sound is less than engine sound to outside.

Someone said somewhere that there are expensive gens sold in USA that are very quiet. But the price was over 1000$ compared to 100-150$ of regular model.

 

[pua]

i cant understand
1.why people wait outside for a while after putting grey coal in the car
2.and why they placing bucket of coals to the tray of water

 

[fightingsioux]

i cant understand
1.why people wait outside for a while after putting grey coal in the car
2.and why they placing bucket of coals to the tray of water

1. They should not, this would be wrong, this is when the flames/smoke/smell is over and CO is produced. You should be in the car/room/tent at this point.
2. To catch or reflect the downward heat in case you were planning on putting the hot bucket on a flammable surface. Some bricks do the same thing.

 

[Farmmaa]

1. They should not, this would be wrong, this is when the flames/smoke/smell is over and CO is produced. You should be in the car/room/tent at this point.
2. To catch or reflect the downward heat in case you were planning on putting the hot bucket on a flammable surface. Some bricks do the same thing.

Wrong.
The reason for waiting about 20 minutes after putting the hot charcoal into the car is to allow the CO levels to build before getting in so that you pass out right away.
The charcoal will continue to slowly burn and produce CO for many hours after you dump it into the bucket and put it in the car.