{"id":2244,"date":"2025-08-28T23:33:59","date_gmt":"2025-08-28T23:33:59","guid":{"rendered":"https:\/\/lentheplumber.com\/new-jersey-area\/?p=2244"},"modified":"2025-09-30T23:07:09","modified_gmt":"2025-09-30T23:07:09","slug":"how-often-should-i-change-my-furnace-filter","status":"publish","type":"post","link":"https:\/\/lentheplumber.com\/new-jersey-area\/blog\/how-often-should-i-change-my-furnace-filter\/","title":{"rendered":"How Often Should I Change My Furnace Filter?"},"content":{"rendered":"<h1 data-start=\"137\" data-end=\"185\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-2135 size-full\" src=\"https:\/\/lentheplumber.com\/new-jersey-area\/wp-content\/uploads\/sites\/10\/2025\/03\/Gas-furnace-iStock-1454788744-5.jpg\" alt=\"Gas furnace\" width=\"1500\" height=\"2000\" srcset=\"https:\/\/lentheplumber.com\/new-jersey-area\/wp-content\/uploads\/sites\/10\/2025\/03\/Gas-furnace-iStock-1454788744-5.jpg 1500w, https:\/\/lentheplumber.com\/new-jersey-area\/wp-content\/uploads\/sites\/10\/2025\/03\/Gas-furnace-iStock-1454788744-5-225x300.jpg 225w, https:\/\/lentheplumber.com\/new-jersey-area\/wp-content\/uploads\/sites\/10\/2025\/03\/Gas-furnace-iStock-1454788744-5-768x1024.jpg 768w, https:\/\/lentheplumber.com\/new-jersey-area\/wp-content\/uploads\/sites\/10\/2025\/03\/Gas-furnace-iStock-1454788744-5-1152x1536.jpg 1152w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><\/h1>\n<h1 data-start=\"137\" data-end=\"185\">How Often Should I Change My Furnace Filter?<\/h1>\n<p data-start=\"187\" data-end=\"504\">Changing your furnace filter might seem like a small task, but it plays a big role in keeping your home comfortable and your heating system running smoothly. A clean filter helps improve indoor air quality, <a href=\"https:\/\/lentheplumber.com\/new-jersey-area\/heating\/furnaces\/\">protects your furnace<\/a>, and can even lower your energy bills. But how often should you really be changing it?<\/p>\n<h2 data-start=\"506\" data-end=\"544\">Why Furnace Filters Are Important<\/h2>\n<p data-start=\"546\" data-end=\"922\">Your furnace filter traps dust, pet dander, pollen, and other particles floating in the air. Without it, these contaminants would circulate through your home and settle inside your heating system. When the filter gets clogged, it blocks airflow and forces your furnace to work harder. This not only drives up energy costs but can also shorten the lifespan of your equipment.<\/p>\n<h2 data-start=\"924\" data-end=\"968\">How Often to Change Your Furnace Filter<\/h2>\n<p data-start=\"970\" data-end=\"1042\">The right replacement schedule depends on the type of filter you have:<\/p>\n<ul data-start=\"1044\" data-end=\"1148\">\n<li data-start=\"1044\" data-end=\"1092\">\n<p data-start=\"1046\" data-end=\"1092\"><strong data-start=\"1046\" data-end=\"1064\">1-inch filters<\/strong>: Replace every 1\u20133 months<\/p>\n<\/li>\n<li data-start=\"1093\" data-end=\"1148\">\n<p data-start=\"1095\" data-end=\"1148\"><strong data-start=\"1095\" data-end=\"1119\">4- to 5-inch filters<\/strong>: Replace every 6\u201312 months<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1150\" data-end=\"1272\">If you\u2019re not sure which filter your furnace uses, check the size printed on the frame or ask a professional technician.<\/p>\n<div class=\"cta-two-container py-4 my-4 my-md-5 text-white border-bottom\"> <div class=\"row no-gutters d-md-flex align-items-md-center justify-content-center\"> <div class=\"col-md-5 \"><a class=\"bg-light text-dark text-decoration-none w-100 d-flex align-items-center justify-content-center text-white px-3\" href=\"javascript:void(0)\"  onclick=\"ScheduleEngine.show()\"> <i class=\"fa fa-calendar mr-2 mr-md-3\"><\/i> Schedule Service Today<\/a> <\/div><div class=\"col-md-2 mt-3 mt-md-0 or-content px-md-0 text-center d-md-flex align-items-md-center justify-content-center\"><span class=\"d-inline-block d-flex align-items-center justify-content-center mx-auto text-uppercase position-relative\">OR<\/span><\/div><div class=\"col-md-5 mt-3 mt-md-0\"> <a class=\"bg-light text-dark text-decoration-none w-100 d-flex align-items-center justify-content-center text-white px-3\" href=\"tel:(800) 950-4619\"><i class=\"fa fa-phone mr-2 mr-md-3\"><\/i> Call Us Today <\/a> <\/div><\/div><\/div>\n<h2 data-start=\"1274\" data-end=\"1317\">Signs It\u2019s Time to Replace Your Filter<\/h2>\n<p data-start=\"1319\" data-end=\"1432\">Even if it hasn\u2019t been the full 3 months, certain warning signs can tell you your filter needs changing sooner:<\/p>\n<ul data-start=\"1434\" data-end=\"1598\">\n<li data-start=\"1434\" data-end=\"1473\">\n<p data-start=\"1436\" data-end=\"1473\">Dust buildup on the filter or vents<\/p>\n<\/li>\n<li data-start=\"1474\" data-end=\"1510\">\n<p data-start=\"1476\" data-end=\"1510\">Weak airflow from your registers<\/p>\n<\/li>\n<li data-start=\"1511\" data-end=\"1555\">\n<p data-start=\"1513\" data-end=\"1555\">More frequent allergy or asthma symptoms<\/p>\n<\/li>\n<li data-start=\"1556\" data-end=\"1598\">\n<p data-start=\"1558\" data-end=\"1598\">A stuffy or dusty feeling in your home<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"1600\" data-end=\"1679\">If you notice any of these issues, it\u2019s best to check your filter right away.<\/p>\n<h2 data-start=\"1681\" data-end=\"1741\">Factors That Affect How Often You Should Change Filters<\/h2>\n<p data-start=\"1743\" data-end=\"1847\">Some homes need more frequent filter changes than others. You may want to replace yours more often if:<\/p>\n<ul data-start=\"1849\" data-end=\"2172\">\n<li data-start=\"1849\" data-end=\"1913\">\n<p data-start=\"1851\" data-end=\"1913\"><strong data-start=\"1851\" data-end=\"1868\">You have pets<\/strong>: Pet hair and dander clog filters quickly.<\/p>\n<\/li>\n<li data-start=\"1914\" data-end=\"1983\">\n<p data-start=\"1916\" data-end=\"1983\"><strong data-start=\"1916\" data-end=\"1938\">You have allergies<\/strong>: Clean filters improve indoor air quality.<\/p>\n<\/li>\n<li data-start=\"1984\" data-end=\"2058\">\n<p data-start=\"1986\" data-end=\"2058\"><strong data-start=\"1986\" data-end=\"2017\">There\u2019s smoking in the home<\/strong>: Smoke adds more particles to the air.<\/p>\n<\/li>\n<li data-start=\"2059\" data-end=\"2172\">\n<p data-start=\"2061\" data-end=\"2172\"><strong data-start=\"2061\" data-end=\"2090\">You use the furnace often<\/strong>: In New Jersey, heavy furnace use in the winter means filters get dirty faster.<\/p>\n<\/li>\n<\/ul>\n<h2 data-start=\"2174\" data-end=\"2215\">What Happens If You Don\u2019t Change It?<\/h2>\n<p data-start=\"2217\" data-end=\"2262\">Neglecting your furnace filter can lead to:<\/p>\n<ul data-start=\"2264\" data-end=\"2446\">\n<li data-start=\"2264\" data-end=\"2312\">\n<p data-start=\"2266\" data-end=\"2312\"><strong data-start=\"2266\" data-end=\"2289\">Higher energy bills<\/strong> from reduced airflow<\/p>\n<\/li>\n<li data-start=\"2313\" data-end=\"2373\">\n<p data-start=\"2315\" data-end=\"2373\"><strong data-start=\"2315\" data-end=\"2339\">Breakdowns or damage<\/strong> caused by an overworked furnace<\/p>\n<\/li>\n<li data-start=\"2374\" data-end=\"2446\">\n<p data-start=\"2376\" data-end=\"2446\"><strong data-start=\"2376\" data-end=\"2403\">Poor indoor air quality<\/strong> with more dust and allergens circulating<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2448\" data-end=\"2549\">Replacing your filter regularly is a quick, inexpensive way to avoid bigger problems down the road.<\/p>\n<h2 data-start=\"2551\" data-end=\"2582\">Frequently Asked Questions<\/h2>\n<p data-start=\"2584\" data-end=\"2761\"><strong data-start=\"2584\" data-end=\"2626\">Can I run my furnace without a filter?<\/strong><br data-start=\"2626\" data-end=\"2629\" \/>It\u2019s not recommended. Running without a filter lets dust and debris build up inside your system, which can lead to serious damage.<\/p>\n<p data-start=\"2763\" data-end=\"2945\"><strong data-start=\"2763\" data-end=\"2801\">How do I know which filter to buy?<\/strong><br data-start=\"2801\" data-end=\"2804\" \/>Check the size printed on your current filter. Most hardware stores carry standard sizes, or you can ask your HVAC technician for guidance.<\/p>\n<p data-start=\"2947\" data-end=\"3084\"><strong data-start=\"2947\" data-end=\"2991\">Do reusable filters need to be replaced?<\/strong><br data-start=\"2991\" data-end=\"2994\" \/>Reusable filters don\u2019t need replacing, but they should be cleaned at least once a month.<\/p>\n<p data-start=\"3086\" data-end=\"3222\"><strong data-start=\"3086\" data-end=\"3138\">Can a dirty filter stop my furnace from working?<\/strong><br data-start=\"3138\" data-end=\"3141\" \/>Yes. If the filter is too clogged, your system may shut down to protect itself.<\/p>\n<p data-start=\"3224\" data-end=\"3367\"><strong data-start=\"3224\" data-end=\"3279\">Should I change my filter more often in the winter?<\/strong><br data-start=\"3279\" data-end=\"3282\" \/>Yes. Since your furnace runs more during cold months, the filter gets dirty faster.<\/p>\n<h2 data-start=\"3369\" data-end=\"3409\">Need Furnace Service in New Jersey?<\/h2>\n<p data-start=\"3411\" data-end=\"3707\">If you\u2019re unsure how to replace your furnace filter or want to make sure your heating system is in top shape, the team at <strong data-start=\"3533\" data-end=\"3566\">Len The Plumber Heating &amp; Air<\/strong> is here to help. We provide fast, reliable furnace services throughout New Jersey\u2014so your home stays warm and comfortable all season long.<\/p>\n<div class=\"cta-two-container py-4 my-4 my-md-5 text-white border-bottom\"> <div class=\"row no-gutters d-md-flex align-items-md-center justify-content-center\"> <div class=\"col-md-5 \"><a class=\"bg-light text-dark text-decoration-none w-100 d-flex align-items-center justify-content-center text-white px-3\" href=\"javascript:void(0)\"  onclick=\"ScheduleEngine.show()\"> <i class=\"fa fa-calendar mr-2 mr-md-3\"><\/i> Schedule Service Today<\/a> <\/div><div class=\"col-md-2 mt-3 mt-md-0 or-content px-md-0 text-center d-md-flex align-items-md-center justify-content-center\"><span class=\"d-inline-block d-flex align-items-center justify-content-center mx-auto text-uppercase position-relative\">OR<\/span><\/div><div class=\"col-md-5 mt-3 mt-md-0\"> <a class=\"bg-light text-dark text-decoration-none w-100 d-flex align-items-center justify-content-center text-white px-3\" href=\"tel:(800) 950-4619\"><i class=\"fa fa-phone mr-2 mr-md-3\"><\/i> Call Us Today <\/a> <\/div><\/div><\/div>\n<p data-start=\"3709\" data-end=\"3775\"><strong data-start=\"3709\" data-end=\"3773\">Call today to schedule furnace service with our expert team!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How Often Should I Change My Furnace Filter? Changing your furnace filter might seem like a small task, but it plays a big role in keeping your home comfortable and your heating system running smoothly. A clean filter helps improve indoor air quality, protects your furnace, and can even lower your energy bills. But how [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2135,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-2244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-heating","entry"],"acf":[],"_links":{"self":[{"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/posts\/2244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/comments?post=2244"}],"version-history":[{"count":0,"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/posts\/2244\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/media\/2135"}],"wp:attachment":[{"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/media?parent=2244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/categories?post=2244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lentheplumber.com\/new-jersey-area\/wp-json\/wp\/v2\/tags?post=2244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}