Yes my mulches are getting thicker! I've been reading about Charles Dowding's no dig method, which I have been doing for a few years and finding it works well. The hugel bed- I think I read an article about that somewhere, they were using the method in a polytunnel. Was that one of Seth Hoffsomething's, the Austrian bloke?
Fire bricks- it burns well, its very dry and we use it to start our woodburner up. How do you make firebricks?
Yes it is dusty, not too bad if we don't disturb it but we have to avoid working in the barn.
Thanks for all the suggestions, I see another evening snuggled up with Google!