The masonry heater association builds one every year for their party.
Lots of info here. Check out the entire site.
http://www.mha-net.org/docs/v8n2/wildac05b.htmI took this class. you can do it.
http://www.northhouse.org/courses/courses/course.cfm/cid/231
Last edited by oldtrapper; 03/25/14. Reason: addition