{"id":8472,"date":"2021-12-14T15:16:21","date_gmt":"2021-12-14T15:16:21","guid":{"rendered":"https:\/\/thetibble.com\/?p=8472"},"modified":"2024-01-05T07:29:10","modified_gmt":"2024-01-05T07:29:10","slug":"range-hood-cold-air-solution","status":"publish","type":"post","link":"https:\/\/thetibble.com\/range-hood-cold-air-solution\/","title":{"rendered":"Range Hood Letting in Cold Air? (Easy solution)"},"content":{"rendered":"<style>img#mv-trellis-img-1::before{padding-top:25%; }img#mv-trellis-img-1{display:block;}img#mv-trellis-img-2::before{padding-top:100%; }img#mv-trellis-img-2{display:block;}img#mv-trellis-img-3::before{padding-top:100%; }img#mv-trellis-img-3{display:block;}img#mv-trellis-img-4::before{padding-top:100%; }img#mv-trellis-img-4{display:block;}img#mv-trellis-img-5::before{padding-top:100%; }img#mv-trellis-img-5{display:block;}img#mv-trellis-img-6::before{padding-top:100%; }img#mv-trellis-img-6{display:block;}<\/style>\n<p>Cold air coming through your range hood is one thing: inconvenient. It&rsquo;s not easy to cook food when the temperature is affected by unconditioned air, and gas stoves have a higher risk of blowing out, not to mention what it does to your heating bill!<\/p>\n\n\n\n<p>While small amounts of leakage might occur with some dampers, this should be such a small amount that it&rsquo;s unnoticeable. So, if the leaking is a problem, the question is why. There are a couple of options to consider, and I will help break down the different ways that your damper can be compromised and how you can deal with it.<\/p>\n\n\n<div class=\"lazyblock-nutshell-1PtrAs wp-block-lazyblock-nutshell\"><p class=\"has-text-align-left has-text-color has-background\" style=\"background-color:#e7d1b1;color:#575f60;font-size:18px\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"150\" class=\"wp-image-3497\" style=\"width: 200px;\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png\" alt=\"\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png 600w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11-300x75.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\"><\/noscript><img loading=\"eager\" decoding=\"async\" width=\"600\" height=\"150\" class=\"wp-image-3497 eager-load\" style=\"width: 200px;\" src=\"data:image\/svg+xml,%3Csvg%20xmlns='http:\/\/www.w3.org\/2000\/svg'%20viewBox='0%200%20600%20150'%3E%3Crect%20width='600'%20height='150'%20style='fill:%23e3e3e3'\/%3E%3C\/svg%3E\" alt=\"\" sizes=\"(max-width: 600px) 100vw, 600px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png\" id=\"mv-trellis-img-1\" data-src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png.webp\" data-srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11.png.webp 600w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/08\/nutshell1-11-300x75.png.webp 300w\" data-svg=\"1\" data-trellis-processed=\"1\"><br><strong>In general, range hoods need backdraft dampers to prevent exhausted air and cold outside air from entering the kitchen through the hood&rsquo;s ductwork. Low quality, broken, or wrongly installed dampers will let cold air in through the hood. Replacing, repairing, or reinstalling the damper will solve this problem.<\/strong> <\/p><\/div>\n\n\n<h2 class=\"wp-block-heading\">Do You Have a Backdraft Damper?<\/h2>\n\n\n\n<p>Range hoods are <a href=\"https:\/\/thetibble.com\/is-a-range-hood-necessary\/\" target=\"_blank\" rel=\"noreferrer noopener\">not required by the International Residential Code (IRC)<\/a>. However, there are some areas where the local codes do require range hoods to be installed, such as <a href=\"https:\/\/thetibble.com\/is-range-hood-required-by-code-california\/\" target=\"_blank\" rel=\"noreferrer noopener\">California<\/a>, and others that require some kind of mechanical ventilation, such as <a href=\"https:\/\/thetibble.com\/range-hood-required-code-ontario\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ontario<\/a>.<\/p>\n\n\n\n<p>However, if you do decide to install a range hood, then the IRC governs the installation, capacity, ducting, clearance, etc., of the range hood, which you can read about in <a rel=\"noreferrer noopener\" href=\"https:\/\/codes.iccsafe.org\/content\/IRC2021P1\/chapter-15-exhaust-systems#IRC2021P1_Pt05_Ch15_SecM1503\" target=\"_blank\">Section M1503<\/a> of the IRC.<\/p>\n\n\n\n<p>Included in these regulations from <a href=\"https:\/\/codes.iccsafe.org\/content\/IRC2021P1\/chapter-15-exhaust-systems#IRC2021P1_Pt05_Ch15_SecM1503.3\" target=\"_blank\" rel=\"noreferrer noopener\">Section M1503.3<\/a> of the IRC is the following:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\"><p><em>&ldquo;The duct shall have a smooth interior surface, shall be airtight, and shall be equipped with a backdraft damper and shall be independent of all other exhaust systems.&rdquo;<\/em><\/p><\/blockquote>\n\n\n\n<p>So, if you have a range hood or are looking to install one, it needs to be airtight and it needs to have a backdraft damper.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1.jpg\" alt=\"Kitchen duct and exhaust exiting the house, fitted with a backdraft damper\" class=\"wp-image-4452\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1.jpg 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1-300x300.jpg 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1-150x150.jpg 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1-768x768.jpg 768w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1.jpg.webp\" alt=\"Kitchen duct and exhaust exiting the house, fitted with a backdraft damper\" class=\"wp-image-4452 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1.jpg.webp 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1-300x300.jpg.webp 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1-150x150.jpg.webp 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1-768x768.jpg.webp 768w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Damper-Location-min-1.jpg\" id=\"mv-trellis-img-2\" data-trellis-processed=\"1\"><\/figure>\n\n\n\n<p>The only reason that your range hood should not have a backdraft damper will be if the manufacturer&rsquo;s instructions say so (and even then I would consult a reliable professional on the matter).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What Does a Backdraft Damper Do?<\/h3>\n\n\n\n<p>A damper controls airflow, air temperature, air humidity, and air pressure in some way or another. Different types of dampers specialize in various forms of controlling air. A backdraft damper is one of these and serves a specific purpose.<\/p>\n\n\n\n<p>There is a lot to know about them and you might find it helpful to have an <a href=\"https:\/\/thetibble.com\/ultimate-backdraft-damper-guide-all-you-need-to-know\/\">ultimate guide to backdraft dampers<\/a>, but the basic function of a backdraft damper is this: they are designed to allow the air in a duct to exit, but prevent air from flowing back into the system from the outside or from the connecting duct.<\/p>\n\n\n\n<p class=\"has-text-align-center\">\n    <a data-amazonimages=\"\" target=\"_blank\" title=\"4 Inch Backdraft Damper Galvanized Steel Inline Fan Vent with Spring-Loaded Folding Blades and 6 Pieces Duct Clamps for Ducting in Range Hoods and Bathrooms Fans\" href=\"https:\/\/www.amazon.com\/dp\/B094JMG375?tag=hvacbuzz-20\" rel=\"nofollow noopener\"><noscript><img decoding=\"async\" class=\"size-large aligncenter\" src=\"https:\/\/m.media-amazon.com\/images\/I\/510E5SsfG2S._SL500_.jpg\" alt=\"4 Inch Backdraft Damper Galvanized Steel Inline Fan Vent with Spring-Loaded Folding Blades and 6 Pieces Duct Clamps for Ducting in Range Hoods and Bathrooms Fans\" title=\"4 Inch Backdraft Damper Galvanized Steel Inline Fan Vent with Spring-Loaded Folding Blades and 6 Pieces Duct Clamps for Ducting in Range Hoods and Bathrooms Fans\"><\/noscript><img decoding=\"async\" class=\"size-large aligncenter lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/510E5SsfG2S._SL500_.jpg\" alt=\"4 Inch Backdraft Damper Galvanized Steel Inline Fan Vent with Spring-Loaded Folding Blades and 6 Pieces Duct Clamps for Ducting in Range Hoods and Bathrooms Fans\" title=\"4 Inch Backdraft Damper Galvanized Steel Inline Fan Vent with Spring-Loaded Folding Blades and 6 Pieces Duct Clamps for Ducting in Range Hoods and Bathrooms Fans\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\"><\/a>\n<\/p>\n\n\n\n<p>There are different styles of backdraft dampers that come in several shapes, with or without blades, and various mechanisms for opening and closing. Spring, gravity, and electric mechanisms are used in backdraft dampers.<\/p>\n\n\n\n<p>Importantly, when a backdraft damper closes, it is designed to seal against any air that may try to enter the vent or duct in which it is installed, This it does through the use of a set of blades or flaps.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Checking if Range Hood Has Damper<\/h3>\n\n\n\n<p>Your first point of call is to determine if there is a damper on your range hood. If not, your solution is as easy as fitting one into the duct of your range hood.<\/p>\n\n\n\n<p>To locate a damper, you will need to look in one of two places, depending on your residence.<\/p>\n\n\n\n<p>An apartment building will have a backdraft damper nearer to your range hood connection (not right behind it, but nearer than the exterior of the building). In shared residences, backdraft dampers are installed where the private vent or duct enters the central duct for the building.<\/p>\n\n\n\n<p>In a house, you will need to look at the vent where it exits the house. This is often on the roof or wall nearby.<\/p>\n\n\n\n<p>The most common backdraft damper used is a butterfly damper. This valve is made up of two semi-circle plates and is most commonly a round shape. Other dampers might have a set of blades that can lie flat.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Solution: Install a Quality Damper<\/h2>\n\n\n\n<p>A quality backdraft damper has high performance without aging or wearing quickly. A good damper is also one that suits your needs. This means that it must be listed and labeled for the function you require and have the correct specifications.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min.jpg\" alt=\"parts of a backdraft damper\" class=\"wp-image-4403\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min.jpg 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min-300x300.jpg 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min-150x150.jpg 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min-768x768.jpg 768w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\"><\/noscript><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min.jpg.webp\" alt=\"parts of a backdraft damper\" class=\"wp-image-4403 lazyload\" srcset=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min.jpg.webp 1000w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min-300x300.jpg.webp 300w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min-150x150.jpg.webp 150w, https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min-768x768.jpg.webp 768w\" sizes=\"(max-width: 760px) calc(100vw - 24px), 720px\" data-pin-media=\"https:\/\/thetibble.com\/wp-content\/uploads\/2021\/09\/Backdraft-Damper-1-min.jpg\" id=\"mv-trellis-img-3\" data-trellis-processed=\"1\"><\/figure><\/div>\n\n\n<p>Looking for a good quality backdraft damper can be easier than you think. You can look for a backdraft damper that is listed according to the IRC. If you are selecting a damper that can be installed for a range hood as per manufacturer instructions, picking one with the proper IRC qualifications can assure you that it meets all the functionality and quality requirements.<\/p>\n\n\n\n<p>If you are looking for the best backdraft damper for your range hood, you should go for a spring mechanism damper. The spring dampers have a better air-seal than a gravity damper as something physically keeps the flappers from opening a certain direction.<\/p>\n\n\n<div class=\"lazyblock-amazonblock-WUei0 wp-block-lazyblock-amazonblock\">\n<div class=\"aawp\">\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B09L7M5JN3\" data-aawp-product-id=\"7840\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"iPower 6 inch Backdraft Shutter Damper Back Draft Blocker One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades 6  for HVAC Extractor Fan Vent Range Hoods\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B09L7M5JN3?tag=hvacbuzz-20\" title=\"iPower 6 inch Backdraft Shutter Damper Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades, 6', for HVAC Extractor Fan Vent, Range Hoods\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31ikP73xGYL.jpg\" alt=\"iPower 6 inch Backdraft Shutter Damper Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades, 6', for HVAC Extractor Fan Vent, Range Hoods\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31ikP73xGYL.jpg\" alt=\"iPower 6 inch Backdraft Shutter Damper Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades, 6', for HVAC Extractor Fan Vent, Range Hoods\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B09L7M5JN3?tag=hvacbuzz-20\" title=\"iPower 6 inch Backdraft Shutter Damper Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades, 6', for HVAC Extractor Fan Vent, Range Hoods\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            iPower 6 inch Backdraft Shutter Damper Back Draft Blocker, One-Way Airflow Ducting Insert Backflow Preventer with 2 Inline Springs Loaded Folding Blades, 6\", for HVAC Extractor Fan Vent, Range Hoods        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>Lightweight valve wings: The valve wings open under the pressure created by the airflow and then automatically close with the spring work. The backflow flap closes automatically at low air volumes....<\/li><li>Keep away from rattling: It has an internal foam strip and a smooth-running spring to keep the valve wings from rattling. The position of the spring should be horizontal for horizontal installations...<\/li><li>One-way airflow ducting insert: Back-flow valve with 2 spring-loaded wings prevents the reverse airflow movement through the ventilation duct when the ventilation system is turned off<\/li><li>Material: The 6 inch Backdraft damper is made out of a Galvanized steel, the flap leaves are made of aluminum, while the Axis and spring are made of stainless steel and can withstand temperatures from...<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$18.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-4\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B09L7M5JN3?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B0842XLY96\" data-aawp-product-id=\"7885\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"AC Infinity 6  Backdraft Damper One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B0842XLY96?tag=hvacbuzz-20\" title=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41pa9NSe7cL.jpg\" alt=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41pa9NSe7cL.jpg\" alt=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B0842XLY96?tag=hvacbuzz-20\" title=\"AC Infinity 6' Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            AC Infinity 6\" Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 6&rdquo; Ducting in Range Hoods and Bathrooms Fans        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>An antidraft duct insert designed for use with range hoods, bathroom fans and other home HVAC applications.<\/li><li>Features outer rubber gaskets that create an airtight seal and grip between the damper and ducts.<\/li><li>Mounts horizontally or vertically to prevent backflow and debris from entering ducting.<\/li><li>Galvanized steel body with spring-loaded aluminum damper blades that open with minimal airflow.<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$18.99<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-5\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B0842XLY96?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n            \n            \n<div class=\"aawp-product aawp-product--horizontal aawp-product--css-adjust-image-large\" data-aawp-product-asin=\"B011IUQL3A\" data-aawp-product-id=\"7841\" data-aawp-tracking-id=\"hvacbuzz-20\" data-aawp-product-title=\"neverest&reg; RK 5  Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts\">\n\n    \n    <div class=\"aawp-product__thumb\">\n        <a class=\"aawp-product__image-link\" href=\"https:\/\/www.amazon.com\/dp\/B011IUQL3A?tag=hvacbuzz-20\" title=\"neverest&reg; RK 5' Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            <noscript><img decoding=\"async\" class=\"aawp-product__image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41hDIFffaiL.jpg\" alt=\"neverest&reg; RK 5' Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts\"><\/noscript><img decoding=\"async\" class=\"aawp-product__image lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41hDIFffaiL.jpg\" alt=\"neverest&reg; RK 5' Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\">\n        <\/a>\n\n            <\/div>\n\n    <div class=\"aawp-product__content\">\n        <a class=\"aawp-product__title\" href=\"https:\/\/www.amazon.com\/dp\/B011IUQL3A?tag=hvacbuzz-20\" title=\"neverest&reg; RK 5' Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts\" rel=\"nofollow noopener sponsored\" target=\"_blank\">\n            neverest&reg; RK 5\" Professional Backdraft Shutter Damper Connector Duct Fits Only with Metal Ducts        <\/a>\n        <div class=\"aawp-product__description\">\n            <ul><li>&#9989; WELL-MADE The backflow damper prevents the wind especially cold and warm air from entering through the ventilation duct. This 5 inch backdraft damper is made out of galvanized steel and the flap...<\/li><li>&#9989; FEATURES The backflow flap opens and closes automatically at low air volumes. It has a smooth-running spring and an internal foam strip to keep the blades from rattling and can be installed...<\/li><li>&#9989; MULTIPLE USE Designed for use in air conditioners, dryers, exhaust, extractor or range hoods, heating ducts, vents, and other HVAC applications.<\/li><li>&#9989; EASY INSTALLATION The backflow flap is installed by inserting it into the ventilation pipe until it stops. The position of the spring should be horizontal for horizontal installations so that it...<\/li><\/ul>        <\/div>\n    <\/div>\n\n    <div class=\"aawp-product__footer\">\n\n        <div class=\"aawp-product__pricing\">\n            \n                            <span class=\"aawp-product__price aawp-product__price--current\">$14.45<\/span>\n            \n            <a href=\"https:\/\/www.amazon.com\/gp\/prime\/?tag=hvacbuzz-20\" title=\"Amazon Prime\" rel=\"nofollow noopener sponsored\" target=\"_blank\" class=\"aawp-check-prime\"><noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\"><\/noscript><img decoding=\"async\" src=\"https:\/\/thetibble.com\/wp-content\/plugins\/aawp\/assets\/img\/icon-check-prime.svg\" alt=\"Amazon Prime\" data-mvt-skip=\"src\" width=\"300\" height=\"300\" id=\"mv-trellis-img-6\" loading=\"lazy\" class=\" lazyload\" data-trellis-processed=\"1\"><\/a>        <\/div>\n\n                <a class=\"aawp-button aawp-button--buy aawp-button aawp-button--blue rounded shadow aawp-button--icon aawp-button--icon-white\" href=\"https:\/\/www.amazon.com\/dp\/B011IUQL3A?tag=hvacbuzz-20\" title=\"Buy on Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Buy on Amazon<\/a>\n            <\/div>\n\n<\/div>\n\n    \n<\/div>\n<p class=\"aawp-disclaimer\">Last update on 2024-03-28 \/ Affiliate links \/ Images from Amazon Product Advertising API<\/p><\/div>\n\n\n<h3 class=\"wp-block-heading\">Installation Tips<\/h3>\n\n\n\n<ul><li>Ensure that you thoroughly clean the area for the seal.<\/li><li>Check that there are no screws or ridges of metal on the ducting that might interfere with the fit of the damper.<\/li><li>Wear latex gloves to avoid a big mess on your hands.<\/li><li>You can tape around the area you will be caulking to prevent mess.<\/li><\/ul>\n\n\n\n<p class=\"has-text-align-center\">\n    <a data-amazonimages=\"\" target=\"_blank\" title='HVAC OV 4\" Inch Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades' href=\"https:\/\/www.amazon.com\/dp\/B08R41SFB3?tag=hvacbuzz-20\" rel=\"nofollow noopener\"><noscript><img decoding=\"async\" class=\"size-large aligncenter\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41f7grEldwL._SL500_.jpg\" alt='HVAC OV 4\" Inch Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades' title='HVAC OV 4\" Inch Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades'><\/noscript><img decoding=\"async\" class=\"size-large aligncenter lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41f7grEldwL._SL500_.jpg\" alt='HVAC OV 4\" Inch Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades' title='HVAC OV 4\" Inch Backdraft Damper, One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades' data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\"><\/a>\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Is Your Damper Working Correctly?<\/h2>\n\n\n\n<p>The only damper that will isolate outside air will be a backdraft damper with their specialization for letting air out and keeping it out.<\/p>\n\n\n\n<p>If you examine the damper installed for your range hood, it will not be working the way you need it to if it is, say, a balancing damper. These are meant to balance air pressure between the room and the vent or duct.<\/p>\n\n\n\n<p>If you have a backdraft damper, then there are some common issues to look out for if you find your damper is leaking.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Common Causes of Damper Leaks<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Stuck Flappers<\/h4>\n\n\n\n<p>Your flappers might be stuck due to damaged or malfunctioning mechanisms, because they are bent, because there may be a screw from the duct getting in the way, or it can be due to a build-up of kitchen grease that is gumming up the works.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Cracked Flappers<\/h4>\n\n\n\n<p>If the flappers or blades are cracked, this results in a compromised air seal, whether due to the air flowing back through the damper because of the actual chips or cracks or because they prevent everything from sitting flush.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Worn\/Pitted Seal<\/h4>\n\n\n\n<p>The seal is vital to the purpose of a backdraft damper. Air from the kitchen carries moisture and cooking fumes and by-products, which means mold can easily grow on the seal and compromise it.<\/p>\n\n\n\n<p>If the seal around the damper is damaged in any way or old and worn, the connection between the damper and the ducting will not be airtight.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Improper installation<\/h4>\n\n\n\n<p>Backdraft dampers function according to orientation, meaning improper installation can compromise the item. If your damper is installed back-to-front, it will be letting unconditioned air from outside into your kitchen and not allowing the air that your range hood is trying to exhaust out.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solutions: Fix or Replace<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Stuck Flappers<\/h4>\n\n\n\n<p>If the damper mechanism is malfunctioning due to corrosion, you can use a rust remover and then grease the mechanism to allow the valve to operate smoothly.<\/p>\n\n\n\n<p>Should the mechanism be damaged, you will need to replace it, which includes situations when the blades have become bent.<\/p>\n\n\n\n<p class=\"has-text-align-center\">\n    <a data-amazonimages=\"\" target=\"_blank\" title=\"Backdraft Exhaust Damper Seal 4 Inch by Calimaero One Size Fits All 4 Duct Backdraft Damper Gravity Powered Made in Germany 4 Inch HVAC Damper Dryer Vent Valve Keep Cold Air Out\" href=\"https:\/\/www.amazon.com\/dp\/B08W4DM7Y5?tag=hvacbuzz-20\" rel=\"nofollow noopener\"><noscript><img decoding=\"async\" class=\"size-large aligncenter\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31vXQbBIR1L._SL500_.jpg\" alt=\"Backdraft Exhaust Damper Seal 4 Inch by Calimaero One Size Fits All 4 Duct Backdraft Damper Gravity Powered Made in Germany 4 Inch HVAC Damper Dryer Vent Valve Keep Cold Air Out\" title=\"Backdraft Exhaust Damper Seal 4 Inch by Calimaero One Size Fits All 4 Duct Backdraft Damper Gravity Powered Made in Germany 4 Inch HVAC Damper Dryer Vent Valve Keep Cold Air Out\"><\/noscript><img decoding=\"async\" class=\"size-large aligncenter lazyload\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31vXQbBIR1L._SL500_.jpg\" alt=\"Backdraft Exhaust Damper Seal 4 Inch by Calimaero One Size Fits All 4 Duct Backdraft Damper Gravity Powered Made in Germany 4 Inch HVAC Damper Dryer Vent Valve Keep Cold Air Out\" title=\"Backdraft Exhaust Damper Seal 4 Inch by Calimaero One Size Fits All 4 Duct Backdraft Damper Gravity Powered Made in Germany 4 Inch HVAC Damper Dryer Vent Valve Keep Cold Air Out\" data-mvt-skip=\"src\" loading=\"lazy\" data-trellis-processed=\"1\"><\/a>\n<\/p>\n\n\n\n<p>Dealing with a screw that is blocking the damper is a little trickier. You are not allowed to have screws or fastenings in place that interfere with the opening and closing of the damper. But you cannot compromise the ducting either. It&rsquo;s probably best to get a professional consult for this particular problem.<\/p>\n\n\n\n<p>Using a degreasing product, such as <a rel=\"noreferrer noopener\" href=\"https:\/\/www.amazon.com\/dp\/B000EALHH6?tag=hvacbuzz-20\" target=\"_blank\"><strong><em>Oil Eater Cleaner Degreaser<\/em><\/strong><\/a><em> <sub><sup>(amazon link)<\/sup><\/sub><\/em>, will be effective if your problem is built-up kitchen grime. Kitchen grease is stubborn, but there are products designed to remove it and these are safe to use on your damper flaps. With the gunk gone, the damper should be back to working at full functionality.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Cracked Flappers<\/h4>\n\n\n\n<p>You will need to replace your backdraft damper if there is extensive damage to the object. If there is minimal cracking, you might be able to seal it using caulk, but this will likely be a temporary solution only until you can replace the damper.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Seal<\/h4>\n\n\n\n<p>Should the seal of your damper be the issue, you should fix this and you can easily do so.<\/p>\n\n\n\n<p>Cut out the seal and remove the damper to clean around it and the ducting properly. Then you can put the damper back and redo the seal. Grab yourself some caulk and reseal the edges.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Installation<\/h4>\n\n\n\n<p>If you have a gravity backdraft damper installed and there is no obvious damage, you may want to consider replacing it with a spring version. This is because the spring dampers have better airtightness, and the gravity damper may be allowing cold air to leak in.<\/p>\n\n\n\n<p>You should follow the manufacturer&rsquo;s instructions for installing the damper. If the damper was installed by a previous owner or resident, you need to make sure that the damper is installed so that the flaps flip up towards you if it is at the exit point, or away from you if it is going into a main ducting line. The air must be able to flow away from the range hood and towards the open air, without being able to push the flaps down and enter back into the house.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sources<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.prolinerangehoods.com\/blog\/how-to-seal-range-hood-vent\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.prolinerangehoods.com\/blog\/how-to-seal-range-hood-vent\/<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.prolinerangehoods.com\/blog\/cold-air-range-hood-vent\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.prolinerangehoods.com\/blog\/cold-air-range-hood-vent\/<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.famcomfg.com\/product-info\/backdraft-damper\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.famcomfg.com\/product-info\/backdraft-damper\/<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.ncamfg.com\/doc\/backdraft-dampers-installation-15930.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.ncamfg.com\/doc\/backdraft-dampers-installation-15930.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cold air coming through your range hood is one thing: inconvenient. It&rsquo;s not easy to cook food when the temperature is affected by unconditioned air, and gas stoves have a &hellip;<\/p>\n","protected":false},"author":59,"featured_media":9007,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":"","disable-in-feed":false,"article-schema-type":"","disable-critical-css":false},"categories":[296,13,300],"tags":[119,210,82],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Range Hood Letting in Cold Air? 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