hash is supposed to be a all the good stuff in weed condensed into on oil, powder or block, but sometimes it has additives which is bad for you and makes it less potent

about the smell, find a way to get the air circulating through your appt. out the window(i usually towell the door and turn on the AC)

you can buy a hash oil maker online that uses butane not sure about the price, but i think they have one at everybodydoesit.com