Chimney & Fireplace

Wind noise in twin wall flue system

Anonymous user 03/03/2024 - 3.27 PM

Hello! We’ve recently had a lovely 5mw wood burner put into our place - we are extremely exposed to the North Coast of Devon and cop a lot of strong on-shore winds. Out Dura Flue twin wall system runs straight up through the bedroom with 1 45 degree and out through the roof. We’ve recently had an anti down- drought cowl fitted. When winds rise anything about 25 miles an hour, we get such high wind noises both in the bedroom and into the stove itself. The new cowl has helped but most definitely not fixed it. It can get so bad it actually prevents the fire from being able to go and can flatten or blow the flames out. Not only is it really disturbing in our social space but I can’t sleep in the bedroom when it’s windy it’s so bad. Our flue is 150mm and funnily enough, our neighbour in the exact same position has us has just had one installed with a 125mm flue and says he gets next to no noise. I can’t understand what’s happening but I’d love to find a solution! Any advice greatly appreciated!!