{"id":546,"date":"2019-12-02T09:55:51","date_gmt":"2019-12-02T14:55:51","guid":{"rendered":"https:\/\/www.kennihans.com\/blog\/?p=546"},"modified":"2025-09-09T12:13:22","modified_gmt":"2025-09-09T16:13:22","slug":"dangers-of-broken-heat-exchanger","status":"publish","type":"post","link":"https:\/\/www.kennihans.com\/blog\/heating-service\/dangers-of-broken-heat-exchanger\/","title":{"rendered":"The Dangers of a Broken Heat Exchanger"},"content":{"rendered":"\n<figure class=\"wp-block-image alignright\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"200\" src=\"https:\/\/www.kennihans.com\/blog\/wp-content\/uploads\/2019\/04\/Heating_iStock_000008099675_Large_800x533-300x200.jpg\" alt=\"Gas furnace burners igniting with blue and red flames during furnace maintenance.\n\" class=\"wp-image-438\" srcset=\"https:\/\/www.kennihans.com\/blog\/wp-content\/uploads\/2019\/04\/Heating_iStock_000008099675_Large_800x533-300x200.jpg 300w, https:\/\/www.kennihans.com\/blog\/wp-content\/uploads\/2019\/04\/Heating_iStock_000008099675_Large_800x533-768x512.jpg 768w, https:\/\/www.kennihans.com\/blog\/wp-content\/uploads\/2019\/04\/Heating_iStock_000008099675_Large_800x533.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n\n\n\n<p>If you\u2019re a homeowner in any part of Butler County, we\u2019d probably guess that you use a furnace to heat your home. Furnaces are reliable, cost-effective, and provide great comfort to a house. We strongly recommend one of these systems for most homes in the area. Furnaces aren\u2019t inherently dangerous systems, but they can definitely become dangerous if things start to head south with certain parts of the unit. <\/p>\n\n\n\n<p>We want to take a moment to cover a specific part in your home\u2019s furnace today: the heat exchanger. Your home\u2019s heat exchanger is a vital part of your home heating system, but few homeowners understand the importance of it. We\u2019re going to simplify this system for you today. If you ever need <a aria-label=\" (opens in a new tab)\" href=\"\/hvac\/heating\/furnaces\" target=\"_blank\" rel=\"noreferrer noopener\">furnace repair in Butler County, PA<\/a>, make sure you contact our professionals. Knowing <a href=\"https:\/\/www.kennihans.com\/blog\/heating-service\/when-do-you-need-to-call-for-heating-repair\/\">when to call for heating repair<\/a> can help you catch these issues before they become dangerous.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Dangers of a Broken Heat Exchanger in Your Furnace?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>When the heat exchanger cracks, it may allow carbon monoxide\u2014a colorless, odorless, and deadly gas\u2014to leak into your home.<\/li>\n\n\n\n<li>This component plays a critical role in transferring heat safely; once compromised, it poses severe health risks.<\/li>\n\n\n\n<li>Regular professional furnace maintenance is the best way to catch cracks early and protect your household.<\/li>\n<\/ul>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">So What\u2019s a Heat Exchanger?<\/h2>\n\n\n\n<p>Are you wondering what a heat exchanger is? The heat exchanger is part of your gas furnace system. It\u2019s the part that\u2019s responsible for blowing heat into the ventilation network. <\/p>\n\n\n\n<p>A heat exchanger is a clam-shaped metal chamber arranged in rows in your furnace system. The heat of a furnace system raises the temperatures of the metal walls and makes the outside of the heat exchanger hot. The air from your furnace system then blows over the heat exchanger and then blows it out into your home\u2019s ventilation system. Your heat exchanger is the system that can help your home circulate heat <em>without <\/em>letting the gases contact the air and put your health at risk. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How It Can Put Your Home at Risk<\/h2>\n\n\n\n<p>So everything sounds great with your heat exchanger \u2026 what\u2019s the problem? Well, there isn\u2019t an intrinsic problem with your heat exchanger, but your heat exchanger can <em>become <\/em>a problem if it cracks. The heat exchanger is under a lot of stress and strain in your furnace system. Each time it starts to heat up the metal expands, and when it cools down the metal contracts. Over time, the constant expansion and contraction can weaken the metal and cause cracking. <\/p>\n\n\n\n<p>A crack in a heat exchanger means that the furnace is going to start leaking unhealthy gases into your home. You don\u2019t want to risk the dangers of carbon monoxide poisoning in your living space. That\u2019s why you need to stay on top of your furnace&#8217;s maintenance. In fact, <a href=\"https:\/\/www.kennihans.com\/blog\/heating-service\/late-season-heating-problems-cracked-heat-exchangers\/\">cracked heat exchangers are common<\/a> during late-season heating issues and shouldn\u2019t be overlooked.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Professional Service Is the Best Option Every Time<\/h2>\n\n\n\n<p>We\u2019re not asking you to stay on top of your furnace all on your own. We\u2019re the team that\u2019s going to be by your side to perform the work that you need. If you notice that your furnace is a little under the weather, we can come out to your home and repair it in a flash. If you just need maintenance to keep your furnace in good shape this fall and winter, we can do that too. Call us today to schedule an appointment with our professionals. Don\u2019t ignore <a href=\"https:\/\/www.kennihans.com\/blog\/heating-service\/these-are-the-leading-reasons-you-may-need-heating-repair-now\/\">common signs of heating problems<\/a> that could point to serious damage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n<p><strong>Question:<\/strong> What exactly is a heat exchanger in my furnace, and what does it do?<br><strong>Answer:<\/strong> A heat exchanger is a clam\u2011shaped metal chamber inside your gas furnace. It heats up and transfers warmth into the air that is blown through your home\u2019s duct system\u2014while keeping combustion gases safely contained.<\/p>\n\n\n\n<p><strong>Question:<\/strong> Why is a cracked heat exchanger dangerous?<br><strong>Answer:<\/strong> Cracks allow combustion gases, including carbon monoxide, to leak into your living space\u2014posing serious health hazards from poisoning and even the risk of fire if gases ignite or the exchanger overheats.<\/p>\n\n\n\n<p><strong>Question:<\/strong> What causes a heat exchanger to crack?<br><strong>Answer:<\/strong> Repeated heating and cooling causes metal expansion and contraction over time, which weakens the exchanger. Poor airflow or an oversized furnace further stresses the component and accelerates cracking.<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What exactly is a heat exchanger in my furnace, and what does it do?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A heat exchanger is a clam-shaped metal chamber inside your gas furnace. It heats up and transfers warmth into the air that is blown through your home\u2019s duct system\u2014while keeping combustion gases safely contained.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why is a cracked heat exchanger dangerous?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Cracks allow combustion gases, including carbon monoxide, to leak into your living space\u2014posing serious health hazards from poisoning and even the risk of fire if gases ignite or the exchanger overheats.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What causes a heat exchanger to crack?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Repeated heating and cooling causes metal expansion and contraction over time, which weakens the exchanger. Poor airflow or an oversized furnace further stresses the component and accelerates cracking.\"\n      }\n    }\n  ]\n}\n<\/script>\n\n\n\n\n<p class=\"has-text-align-center\"><strong>Contact Kennihan Plumbing &amp; Heating, Inc. today to <a href=\"\/contact\/schedule-service\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">schedule an appointment<\/a> with our professionals. We treat your home like it\u2019s our grandma\u2019s home.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Don&#8217;t let your heating services slip this winter. Call our team for all your furnace needs.! <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[87,122],"class_list":["post-546","post","type-post","status-publish","format-standard","hentry","category-heating-service","tag-butler-county","tag-furnace-repair"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts\/546","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/comments?post=546"}],"version-history":[{"count":4,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts\/546\/revisions"}],"predecessor-version":[{"id":1646,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts\/546\/revisions\/1646"}],"wp:attachment":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/media?parent=546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/categories?post=546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/tags?post=546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}