I do not advocate 'making BHO at home'. I would suggest working with solvents like butane in a Class 1, Division 2, or C1D1 room with high airflow exchange rates, top-down airflow (exhausts at floor level- imperative as these flammable gasses are heavier than air) and no ignition sources.
If you are going to take a CLS outdoors, build a proper platform far away from any buildings.. butane will fall to the ground and can cover a very large surface area, creeping back in under doors into basements or garages with pilot lights for water heaters or furnaces. 20 feet outside your house is not a safe place to discharge butane. Don't just throw a piece of wood on the ground and set a tall closed loop on top. Many small systems are too easy to tip over. Please resarch behavior of butane and spend considerable time sober thinking of safe procedures before proceeding.
I wouldn't be a good person to teach you how to make BHO start to finish, and if you have not ever done it before, I would suggest simply not doing it. There are far simpler, safer procedures to try out at home, first.
I could tell you some of the places I learned things if you want to try to help yourself. Skunkpharm, the first site posted by
@miguelovic , is a fantastic starting point:
https://skunkpharmresearch.com/bho-extraction/
, and I hope you're very familiar with them by now... If any of these information sources are new-to-you as someone going out and researching how to make BHO, I'd be worried, because the type of person that makes posts asking others to spoon feed them information are usually not the kind of person that has the ability to research topics of such paramount importance as safety precautions with regards to flammable solvents.
I learned how to make BHO in 2006/7 based off Indra's original boffo-butane-PVC pipe post:
https://erowid.org/plants/cannabis/cannabis_info13.shtml Things have come a very long way since then.
It's worth noting that NO ONE uses PVC pipe for this purpose anymore, and only the worst of the worst blast cans of disgusting contaminated lighter-refill butane straight out of cans- these multiple-compound cans of solvent contain a blend of gasses along with central nervous system depressants like mercaptan, machining oils from the manufacture and forming of rolling the cans... This is why obtaining pure solvent is required. (I get 99.97% pure butane and propane from gas suppliers at work, and distill that another time before adding it to the solvent tank) Stainless steel tubes are strongly suggested. If you have a small CLS, you are good to go in the materials department. Inspect your gaskets throughly and make sure they are compatible with the solvent you are using- viton seals are strongly suggested for tri-clamp gaskets.
if you are recovering passively, one of the best video series you could watch would be from Bret Maverick. Watch all of these videos:
https://www.youtube.com/playlist?list=PLzvEtJyVfqQa5qm5rwAMc-frOqA1elYBu
Once you understand how the process works you should be able to determine for yourself whether you have all the requisite materials needed to proceed safely. I have all the same questions as
@herbivore21 and also would like to know if your CLS has a pour-out collection pot, or valve operated dispenser, and what type of container / material you will be pouring out into, for insertion into your purging chamber? How much of the solvent can you recover out of your collection pot before pour out, i.e. will you need to 'boil off' excess solvent before you can put the oil into a vacuum chamber, or can you pull a vacuum inside your CLS' pot?