Hi there. Sorry for the late response. I used Kingsford Original Briquettes. They sell a 2 pack of 18-pound bags at Walmart, so I bought two of those for my tests. For this particular test I used 4 Weber chimney starters (also from Walmart) to burn the briquettes. Sounds nuts to use that many, but I tried 2 chimney starters for an earlier test and only got around 3500 in 3 hours. Supposedly enough for what you want to do, but I just wasn't satisfied with that, so I bought 2 more. I already had 2 steel buckets to tip the coals in (about 10 inches high and 9 or so wide), so I was ready to go. I used most of a bag between the 4 chimney starters, so I'd say each held around 4 pounds apiece. You just put paper in the bottom of one and light it up and wait for the coals to turn gray and glowing inside. I'd say I kept them in there between an hour to 90 minutes, then tipped them in the pails. Some coals turn to ash while they're burning in a chimney starter, so instead of being full you wind up losing a quarter or so of what you put in, so I tipped in 2 chimney starters per pail and put them in the van (on 12 x 12 stepping stones). My van's pretty big, an old Chrysler Town and Country, so I'm pretty sure the CO levels would be nuclear in a small car. I have an old compact car, but I'm not really sure how to sit the pails in without burning it. Any help with that would be great. As for how hot it got in there, I couldn't say. I remembered everything but a thermometer. I'll make sure to buy one for my last test. I don't want to wake up from my vodka/benzo sleep roasting. I seriously doubt I'd wake up with such a high reading, but I guess you never know. People have survived worse things. I can say I put my hand about 6 inches above the pails before I put them in the van and the heat wasn't so bad, so I think the temperature would be okay, especially with cooler weather coming up. That's actually what I'm waiting for to be honest. All of this is probably overkill, but I don't want to think this is going to work, I want to know. The last thing I want is to wake up brain dead or in a mental hospital. All this is a pain to pull off, but I want this to be painless as possible. I'm escaping a life of pain, no need to hurt on my way out.
Hi there. The meter stays on automatically. It's actually sort of a pain to turn off. It has to purge all the CO out of it before you can, so you have to sit around while the CO level creeps down. It really doesn't take that long, 5 minutes or so, but after sitting around and getting up to check the meter reading through the window for a few hours it seems like forever.