I'll test it out with what I got to see how it goes, but the place I went sold it by the block (I'd say about 2 cubic feet). they recommended a quarter block but it seemed small so I got a half I'd say it weighs about 12lbs but it cost me 26$ The heat gun I bought cost 30$ and it's not consumable, but it makes a mess. I guess I'll just have to see if the dry ice does it faster/cleaner/easier enough to justify the expense.