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Originally Posted by BikerDoc5968
I understand that but it still has to consume O2 to burn so if all is working correctly she should only have H2O and CO2 as the the byproducts of combustion....as she said like a BBQ grill.... maybe I'm missing something here 'cause I've never seen any of those patio heaters working....sorry for my brain-dead situation, but you knew that, Ross  |
No, you aren't misconstruing anything. My opinion comes from having used these things. You are right - in a perfect world, a perfectly adjusted space heater will be safe. But, why do the labels warn about using them only in ventilated spaces (such as an outdoor patio)? Because it's impossible to get 100% combustion to CO2 and water as you suggest. There will almost always be CO as well. Doesn't take much of that stuff to put you under for a while. Also I would be afraid of other gases that will lead to bud blast - this was the original question. My advice was to stick with a vented heater.
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Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)