ya.. grab a chamber and a vacuum.. without that.. u cant really be picky about flavor and taste.... honestly.. unless you wana be inhaling butane all day long..
but.. what I used to do.. before I got a chamber.. was hot water bath.. outside until its almost all butane gone.. then id bring inside.. put on a pot that plugs into the wall.. at like 130.. let the rest of the butane get going out.. and use a torch or a heat gun.. to get the top of the oil warm enough to get that butane out.. but you are going to sacrifice quality.. and color and taste and smell..
u can still get a nice oil without a chamber.. but purge times go way longer then a few days to be properly purged..
also.. with a chamber.. temps don't need to be as hot.. so u save
terpenes.. without a chamber.. you really cant be picky..
the best way to get the butane out.. without a chamber.. is to use everclear 190 proof.. by the time u purge the everclear .. all the butane is gone..
but.. if u really aren't hard up for smoke or money.. id dissolve in everclear 190 proof.. set it in a jar in the freezer.. until I got a chamber.. to purge it lol. or look for someone with a chamber.. that will purge it for you. or that u can purge using there chamber..