Hello i have question about installing flange on combi cylinder , i could not find answer to this on google and all videos on youtube is about regular hot water cylinder .
So i want to replace old pump witch stopped working in apartment with combi cilinder and the only question i have is do i need to install any kind of flange on it and if so witch one .
So i want to replace old pump witch stopped working in apartment with combi cilinder and the only question i have is do i need to install any kind of flange on it and if so witch one .