Hey everyone! I'm kind of new to the site but have logged many hours here researching nearly every aspect of my grow. The number of knowledgable people and the multitude of information available here make The Farm #1 by far IMO! I just recently (1 week ago) set up my CO2 burner (CAP Gen 1) and CO2 controller (CAP PPM3). I started it in the third week of flower. I was told starting in the third week is best to avoid eccesive stretching. My SFV OG did stretch a lot. I ended up using Phosphoload actually to keep em where I want them to be. That stuff is awesome by the way. Packed on big time girth compared to the same strain (not treated with phosphoload) in the adjacent tray. Back on subject, when I awoke this AM to put them to sleep my controller read 5300 ppm of CO2! I guess it neglected to shut off the burner when it reached the set point. At the time I entered it was not burning so it did eventually turn off the burner. I was worried about the levels for my health so I opened the door even tho I was leaving in a minute. No I didn't get light headed. I did though when I started a week ago. Guess I built up a tolerance LOL! Anyone else have this problem with these devices? If so how do I fix it? It is hot enough in there without the burner burning overtime needlessly. Not to mention a waste of gas. Another question. Do you guys and girls that run burners smell a propane type scent when your burner is running? I assumed the burned gas would leave no odor. I used to be able to smell the dankness before the burner. Now I just smell a propane like smell in the room. I brushed soapy water on all connections from hose to burner and no excessive bubbling... So I assume no leak.. I've heard contradictory info on ideal temp with CO2. I am leaning toward 82 degrees lately. Humidity has been an issue since CO2. Went up to 67% last night. Don't want PM again so ordered a dehumidifier today. :talking I know I threw a lot of questions out there farmers. Help with any or all of them is greatly appreciated.