Boy, am I glad I found this site. I live in England & there's not much info on RMS' over here. I'm building a long greenhouse against an existing wall & I want to use a RMS to heat it. I have attached a drawing from which you can see the barrel is outside the greenhouse in the open air. I'm currently trying to bid, on Ebay, for a 9mtr length of old chimney flue liner to use as my pipe, but failing that I was going to build a brick tunnel with a slabbed top.
Questions:
I was going to use a 5" uPVC exhaust pipe at the far end of the system, is this ok?
Rather than cob over the exhaust pipe or brickwork I was going to use layers of sand, grit, earth. Is this ok? OR// I could even slab over the top with patio slabs, giving a nice working surface.
As the barrel is open to the elements I thought it would be better to render the fire pit/barrel chamber with a grit/cement coating rather than cob.
Some advice/pointers would be great from you experienced guys