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The primary disadvantage of a ventless fireplace is that it doesn’t have an exterior venting system. This means that the byproducts from combustion are emitted into your home, which raises some safety concerns. In addition, ventless gas fireplaces produce moisture as they burn—and if there’s no ventilation, you could end up with a mold problem.

A well-constructed and regularly maintained brick chimney can last 50 to 100 years, potentially spanning multiple generations of homeowners. The exact lifespan depends on the quality of construction, materials, local environment, and maintenance. In contrast, a metal chimney typically lasts 15 to 20 years. While the main structure is durable, individual components have shorter lifespans and require more frequent replacement. For example, mortar may need repointing every 20 to 30 years, chimney crowns last 50 to 75 years, and liners can last anywhere from 15 to 50 years depending on the material (e.g., stainless steel vs. cast-in-place).

You can let a fire burn out in a fireplace as long as you or someone else will stick around to monitor it until it goes completely out. This may take several hours. To prepare, stop adding fuel to the fire well before you’re ready to call it a night. If you’re using the fireplace for warmth, you’ll want to cover up in some blankets as the flame dies down.

While wood stove fans are effective for improving heat distribution, they rely on the stove reaching a certain temperature to operate efficiently. If the stove does not generate enough heat, the fan may not start or may not move air effectively. Additionally, like any fan, wood stove fans cannot cool a stove or reduce its heat output—they only redistribute existing warmth.