Difference Between Vented And Ventless Gas Logs

Gas logs are a great way to add warmth to your home – but not all gas logs are the same. In this article, you’ll learn about the difference between vented and ventless gas logs, and how each style is better for certain purposes.

What are Vented Gas Logs?

Vented gas logs are different from ventless gas logs. Ventless gas logs have a small, removable air vent that allows combustion gases to escape while the logs are burning. This is good for efficiency and reduces the amount of pollutants generated. Vented gas logs do not have this air vent, so combustion gases remain inside the log and are released through the top. This allows for a more intense flame and greater heat output.

Pros and Cons of Vented Gas Logs

Vented gas logs are typically considered more efficient than ventless gas logs because they allow more heat to escape, which can result in a more even and complete burn. Additionally, vented gas logs do not require a chimney cap and are typically less expensive to operate. However, vented gas logs can be less safe than ventless gas logs if they catch fire, as the open flame may cause a higher risk of ignition. Additionally, vented gas logs may produce more smoke and smell than ventless gas logs.

What Are Ventless Gas Logs?

Vented gas logs are the most common type of gas log. A vent is installed on the front of the logs so that combustion gases can escape. This allows the user to control the rate of combustion, which produces heat more efficiently.

Ventless logs do not have a vent. Instead, they have a small hole in the top that allows combustion gases to escape, but also allows air to enter and provide fresh air for combustion. This method is said to be more efficient because it avoids the buildup of harmful gases inside the log. However, this method may be less aesthetically pleasing because exposed flames are visible from most angles.

Overall, ventless logs are more efficient than vented logs, but they may be less aesthetically pleasing.

Pros and Cons of Ventless Gas Logs

There are two main advantages to using a ventless gas log over a vented gas log. The first is that they don’t require a vent; this means they can be placed in more places than a vented gas log. The second advantage is that they don’t have the potential for an explosion. However, there are disadvantages to using a ventless gas log as well. First, they tend to be less efficient than vented gas logs because the trapped combustion gases make it harder for the fire to produce heat. Second, if there is an emergency and you need to use your gas stove, you may not be able to use a ventless gas log because it won’t emit flames.

What are the Differences Between the Two Types of Gas Logs?

Vented gas logs are designed to allow air and combustion gases to escape. Ventless gas logs do not have any openings that allow air and combustion gases to escape. This means that ventless gas logs will heat up more slowly than vented gas logs, since they don’t have the ability to vent excess heat. Additionally, ventless gas logs may be more dangerous since they don’t have a safety feature that helps prevent them from exploding if there is a buildup of gas in the log.


By understanding the differences between these two types of gas logs, you will be able to make a better decision when it comes time to purchase one for your home. We hope that this article has helped you learn more about each type of gas log and why they are different. If you have any questions or would like additional information on either type of gas log, please feel free to leave a comment below!

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