“In the showroom I Installed twin flue system on Merlin Midline we are surrounded by trees and open fields. I had the worst case of downdraft I have ever experienced it was so severe ash would blow out the door. I first fitted a spinning cowl but this had no effect it just didn’t work. I then fitted the FlueCube the problem was immediately solved. I don’t waste time on trail and error anymore I just fit FlueCube’s and solve the problem.”