I just acquired a 30L Birko Domestic Urn off Gumtree. After researching Birko urns on the web I was hopeful it would have a concealed element, but no such luck. Still for $30 I'm not complaining. So my question is - is the exposed element going to be a problem if I use the urn for BIAB? I understand I'd need to build a stand to keep the grain bag from touching the element and burning but that would be necessary even with a concealed element. Any other problems to be aware of?