Unlike other versions that tend to rattle in the wind the back draft damper on the promax cap has been designed for noise and wind resistance and its stylish wide mouth appearance helps to optimize the airflow.
Range hood vent flapping wind. Often a stiff wind will open vent dampers causing them to periodically clang shut. This makes it difficult for the wind to open it. This is one that has been bothering me and a lot of my neighbors. The usual way to stop it is to change the grille to a non flapper type or fit a means of holding the flappers partly open.
When the vent hood fan is shutoff and the airflow diminishes and the flapper begins to close. Air movements draught or wind outside cause it. The first one i found searching on hd specifically calls out this problem in the description. I can t flip the flap 180 because it s hinged at the top.
You ll hear a single authoritative solid thunk. This actually seemed to work pretty well. If the noise drives you crazy new spring loaded backdraft dampers 9 to 30 depending on the size should solve the problem. A very common problem with flap type grilles not only with cooker vents but with ventilation fans and tumble dryer vents too.
If you hear a banging noise coming through your bathroom vent when it is windy chances are that the wind is picking up the vent flap and then letting it bang closed. The noise is annoying but i m also concerned about the heat loss in the winter. This video is my attempt at keeping mine from clanging in the wind. The vent hood ducts through a rigid or flexible pipe to a cap on the roof or side of your home.
I can t remove it as the wind just blows down the vent straight to the hood and makes the flap in the hood bang. Discussion in remodel forum blog started by moontoad nov 14 2007. A spring loaded damper or flap at the end of the range hood vent functions in the same way as a standard flap except that it uses pressure from a spring to stay closed. As soon as the magnet nears the adjustable screw.
Victory range hoods 218 753 views. The vent in the video is a magnetic wind defender vent galvanized. I think you just need to find a better built vent hood. This noise can get annoying but there is a remedy for it.
The vent is held closed by the magnet and no more flap flap flapping. Sometimes wind and roof vents do not get along well. We live in a windy area and the flabber doors on the fans are often banging open and shut. I have a two year old home which has vent fans in the two bathroom ceilings.
Stop your kitchen vent from banging in the wind dave brown.