up vote 0 down vote accepted. I discovered that the chimney/pipe/whatever you want to call it is not held together by anything. I simply pushed the wood stove out of the way and then the pipe came loose. I bought a cap from Lowes and capped it off.
In hair tests, the marijuana detection time can range from three months up to three years from the last time that you used a drug. Most labs will only look at the last 90 days. Hair grows on average half an inch per month, so 1.5 inches of hair corresponds to about 90 days.
Know how long do drugs stay in your system for a hair drug test. The hair drug test can detect drug usage in any hair that was growing anywhere on your body at the time you used the drug. Example: If you used 12 months ago the hair growing at that time is still on your body, it can be detected.