Every gas fireplace on the market falls into one of three venting categories, and which one fits your home depends more on your existing structure and how you plan to use it than on style preference alone.
The three types, plainly
Direct vent
Draws combustion air from outside and exhausts outside through a sealed system. Most flexible for placement, generally the most efficient option.
B-vent
Exhausts outside but draws combustion air from the room. Often the right fit when converting an existing wood fireplace with a suitable flue.
Ventless
No venting at all, burns clean enough by design, but comes with real room-size limitations and is not our default recommendation for daily primary use.
What matters beyond venting type
Frequently asked questions
Which type is most efficient?
Direct vent units are generally the most efficient of the three, since they don’t draw combustion air from, or lose heated room air to, the venting process the way B-vent does.
Can I convert my existing gas fireplace to a different type?
Sometimes, but it usually means significant venting changes rather than a simple swap, so it’s worth discussing your goals with us before assuming it’s a minor update.
Is ventless actually safe?
Ventless gas fireplaces are designed and certified to burn cleanly without venting, but they do have real limitations on room size and shouldn’t be relied on as a primary, all-day heat source.
Do you handle the installation too, or just talk through options?
Both. This page is meant to help you decide what you want; our gas fireplace installation page and team handle the actual install.