“Just fitted my first FlueCube – Single storey extension, twin wall 8” above a flat roof, house directly behind with high wall, front of the extension over looking an estuary. Customer has a wood burner; his previous cowls have been anti downdraft, then spinning, then box, all without success! After FlueCube installation, lit straight away, stove burnt clearly and no back draft. I am impressed and my customer is very happy”