Ventless gas logs fireplace can also be referred to as non-vented, unvented, or ventfree gas logs. Unlike the vented gas logs with its yellow flame, this type burns with the blue flame. This flame is hot and clean because it does not produce soot.

Because it is hot, the ventless gas logs fireplace can serve as a supplement to one’s primary heating system. The only concern is that these gas logs are usually not as attractive compared to the vented logs. Its only advantage is that it produces more heat.

Because the vent less gas log is not producing soot, the fireplace can be operated with the damper fully closed. Hence, it forces all the heat to be concentrated into the room.

The blower systems can also be used with most ventless gas logs. There are some models of ventless gas logs that require the use of specific blower systems. At times, the use of a blower not specific for a particular log set may affect the burner flame pattern. This can also cause the flame to produce soot which is not normal.

Ventless gas logs for fireplace have a limitation in maximum BTU input of 40,000 BTU. These gas logs require an oxygen depletion sensor or ODS too. This sensor shuts the gas logs off when the oxygen level turns too low. Usually, the lowest limit when the ODS starts to shut off the system is when the room oxygen level falls to 18%. The normal oxygen level of the air is 21%.

Most ventless gas logs require installations with a hood over the opening of the fireplace. Because the heat is forced out of the fireplace opening, the mantles tend to get very hot. The hood serves as a protection to this heat. Your manufacturer will even state the required clearance between the opening and the mantle. But the mantle can still hot even with this clearance. Thus, installing a hood with this type of gas logs is always a great addition.

Never operate your ventless gas logs with your fireplace doors closed. When you do that, the glass doors will likely overheat and this can make the glass shatter. When the appliance is operating, you need to take into account that the spark screens installed in front of the ventless logs can become very hot too.

In closing, the ventless gas logs fireplace can be an option for your home because it is economical, clean, and can also provide a supplemental heating source. Its downside is that it can get ugly with the hood, unlike the aesthetically pleasing vented gas logs fireplace.

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