{"id":548,"date":"2021-02-08T11:00:00","date_gmt":"2021-02-08T16:00:00","guid":{"rendered":"https:\/\/www.crowngroupohio.com\/blog\/?p=548"},"modified":"2025-08-20T07:50:09","modified_gmt":"2025-08-20T11:50:09","slug":"be-cautious-major-furnace-problem","status":"publish","type":"post","link":"https:\/\/www.crowngroupohio.com\/blog\/heating-service\/be-cautious-major-furnace-problem\/","title":{"rendered":"Be Cautious of This Major Furnace Problem"},"content":{"rendered":"
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\"Furnace-standard\"<\/figure><\/div>\n\n\n

It\u2019s important for us in the heating and air conditioning business to reassure customers that their furnaces are not super dangerous. Gas furnaces would never be permitted in homes\u2014let alone millions<\/em> of homes across the country\u2014if their operation commonly posed a threat to people. <\/p>\n\n\n\n

But it\u2019s important for us to let customers know there are ways a furnace, especially an older one or one that hasn\u2019t gotten regular maintenance, can pose hazards. Scheduling heating maintenance every single year<\/a> is one of the most effective ways to prevent safety risks and extend your system\u2019s lifespan. Keeping up with maintenance can lower the chance of problems like this occurring down to almost nothing, but a bit of knowledge also goes a long way. To understand when it\u2019s time for a new furnace, explore the 50% rule for repair vs. replacement<\/a>.<\/p>\n\n\n\n

In that spirit, we\u2019re going to look at a major furnace problem that can put your household in jeopardy: a cracked heat exchanger.<\/p>\n\n\n\n

What Makes a Cracked Heat Exchanger a Major Furnace Hazard?<\/strong><\/h2>\n\n\n\n