How much does a non vented gas fireplace cost?
A vented gas fireplace costs between $3,500 and $8,000 to purchase and have installed, depending on the amount of carpentry required to run the ductwork. By contrast, a ventless fireplace costs between $1,000 and $5,000.
Which is safer vented or ventless gas fireplace?
In general, vented fireplaces are better in terms of safety and function. However, most of the heat is lost through chimneys, so consider using a direct vent. Ventless fireplaces are still a great option and are safe when used properly. Check with your local laws first as some areas don’t allow ventless fireplaces.
What are the pros and cons of a ventless gas fireplace?

Ventless Gas Fireplace Pros & Cons
Pros of Vent Free Units | Cons of Vent Free Units |
---|---|
Since ventless gas products require no vent or chimney, they cost less to install, compared to vented gas appliances. | Since ventless gas logs exhaust into the home, there is an added risk over vented gas fireplaces. |
How do you know if your fireplace is vented or ventless?
Turn on the fireplace. If the flames reach above the gas logs and the look like a wood burning fireplace, then the logs must be vented. If the flames are small, an have a blue cast, the fireplace is vent-free.
Can a ventless fireplace be vented?

Answer: Unfortunately, there is no way to convert a ventless fireplace into a vented fireplace. Ventless fireplaces are not designed to have a vent added to them. Your only alternative is to tear out the existing ventless fireplace and replace it with a vented fireplace.
How do I know if my fireplace is vented or ventless?
Are ventless fireplaces Safe 2021?
Ventless fireplaces produce small amounts of nitrous dioxide and carbon monoxide which can be deadly in large doses. The CDC warns against exposure of any level of carbon monoxide, stating that up to 500 people die per year due to accidental carbon monoxide poisoning.
Can you use ventless gas logs in a vented fireplace?
You can use ventless logs in a vented fireplace. If you do use a vent-free logs, you won’t have to open the damper since these logs don’t require venting. Even though the chimney can remain closed, you will still lose some of the efficiency and heat from using this type of set in a vented fireplace.