If you are experiencing cold air sneaking into your kitchen from your range hood ventilation system, it’s likely that you do not have a backdraft damper installed or the backdraft emperor is damaged.<\/strong><\/p>\n\n\n\n Backdraft dampers sometimes called “gravity dampers<\/strong>,” are devices that let air flow in one direction while keeping air from coming in from the other side. This keeps a backdraft from happening. Backdraft dampers are put in HVAC systems to control how much air goes in and out. A backdraft damper keeps the pressure in a building stable, which cuts down on wasted energy.<\/p>\n\n\n\n A backdraft damper may be put in a horizontal or vertical orientation.<\/strong> However, the kind of damper required for the installation changes depending on the orientation. For example, depending on the situation, a contractor might mount a motorized backdraft damper horizontally or vertically. <\/p>\n\n\n\n As a result, the contractor has more freedom in how the room is laid out. In contrast, if the damper is operated by gravity, the contractor will need to mount it vertically so that its flaps may be opened and closed by the force of gravity.<\/p>\n\n\n\n Two dampers should be used when installing a range hood to prevent air from the outside from entering the kitchen.<\/strong> The first is at the duct’s entry point at the top of the hood, and the second is at the duct’s exit point at the wall or roof cap. These metal flaps are so thin that they must open while the hood fan is on low speed. However, they should keep cold or hot drafts from entering your home through the hood.<\/p>\n\n\n\n There are three solutions to the problem of chilly air leaking into your house.<\/strong><\/p>\n\n\n\n The ductwork from a range hood or oven may be sent outside via the ceiling or a wall. A backdraft damper is located at the duct’s outlet near its terminal section. This part acts as a one-way check valve to prevent impurities from reentering your stove. This gadget lets smoke, grease, and fumes out, but they can’t get back in. The backdraft damper opens only when pressure is put on it from the inside, and the range fan blows the mess outside.<\/p>\n\n\n\n The chilly outside air will enter your house if the backdraft damper is not closed completely or is locked in the open position. Also, the toxins you’re trying to eliminate by venting may find their way back inside. Some backdraft dampers may be repaired by applying oil or lubrication; replacement is necessary if that doesn’t work.<\/p>\n\n\n\n It might be a surprise, but the second backdraft damper is not far from the screen; it is situated just over the oven. If the damper on the range side isn’t properly shutting<\/a>, cold air from within the ducting may still leak into your house, even if the outside backdraft damper is functioning correctly. To inspect the damper, you will need to take off the screen and maybe the light bulb sitting in front of it.<\/p>\n\n\n\n Look for symptoms of blockage or restriction in the damper. If, after eliminating these obstacles, the damper still won’t fully shut, it’s time to get a new one. Before using your stove again after repairs or replacements, make sure the screen and light are back in the right place. <\/p>\n\n\n\n Have you ever thought about where the vent for your stove or oven goes? Unfortunately, air cannot “settle” if the vent duct is vertically aligned. Roof-exiting range vents are especially likely to have this problem<\/a> because the backdraft dampers on the outside may not be easy to check. One option is to change the ductwork to include a curve that gives cold air a natural place to settle.<\/p>\n\n\n\n However, remember that heavy, frigid air will naturally seek the lowest possible settling location. This is why there are times when a range vent that goes straight to the floor is the best option.<\/p>\n\n\n\n Some people might think that making changes to ductwork is extra maintenance, but the long-term benefits of lower energy bills might make up for the initial costs. If you are unsure of what you are doing, it is best to call in the pros before attempting this repair yourself.<\/p>\n\n\n\n If you want even more tips and insights, watch this video called “All About Make Up Air | This Old House”<\/em> from the This Old House YouTube Channel.<\/p>\n\n\n\nWhat is a backdraft damper<\/h2>\n\n\n\n
How is the backdraft damper installed<\/h2>\n\n\n\n
How can a damper stop cold air from coming into your house<\/h2>\n\n\n\n
What to do if your kitchen vent brings in cold air<\/h2>\n\n\n\n
Inspect the outside backdraft damper<\/h3>\n\n\n\n
Inspect the range-side backdraft damper<\/h3>\n\n\n\n
![\"Image](\"https:\/\/rangehoodhomeland.com\/wp-content\/uploads\/2022\/10\/image-of-a-kitchen-with-a-gray-countertop-on-the-right-side-and-above-is-the-range-hood.-source-pixabay-1024x553.jpg\" "\\"\\"")
Inspect the ductwork<\/h3>\n\n\n\n