Vented or ventless gas fireplace logs?

Choose vented gas logs for a real wood burning fireplace with a working chimney. The damper stays open, and most heat goes up the chimney. These sets suit shoppers who want the most realistic wood-fire look.

With ventless gas logs, no chimney is needed and the damper stays closed. Also called vent free gas logs, they keep nearly all their heat indoors. An oxygen depletion sensor shuts off the gas if room oxygen drops. Check local code first.

Choose the look, size and controls

For gas fireplace logs that fit, measure your fireplace opening first. Most sets come in 18, 24 or 30 inch widths, with larger options up to 60 inches. Order for natural gas or propane to match your home; the fuel cannot be switched later.

Compare fireplace gas logs in oak, birch or driftwood styles. Cast logs are hand painted, while ceramic fiber glows where flames touch it. Most sets have a glowing ember bed. Choose two-sided sets for see-through fireplaces and outdoor-rated sets for outdoor use.

Controls include match lighting, a standing pilot, a remote or electronic ignition. Some vent free sets offer a thermostat. Check whether your gas log set includes its burner or requires you to choose one on the product page.

Find your brand

Real Fyre offers the widest range here, with hand painted refractory ceramic logs in vented and vent free styles. Grand Canyon Gas Logs casts logs from real wood, reinforces them with steel mesh and paints them by hand in Phoenix for indoor and outdoor use. Majestic indoor sets offer vented oak and birch looks with single or double burners. Majestic outdoor sets bring those looks to outdoor fireplaces.

Superior offers glowing ceramic fiber vent free sets and outdoor vented options. Monessen specializes in vent free sets, most also rated for vented use, with the burner chosen on the page. Empire Comfort Systems offers vent free sets with burners included, plus vented burners. Napoleon gas logs come as Fiberglow vented sets in 18 and 24 inch sizes with glowing ceramic fiber logs and battery powered ignition.

Need something other than a log set?

Already have fireplace logs, or prefer glass or spheres? Browse standalone gas burners. Without an existing fireplace, explore complete gas fireplaces. For another way to convert a wood fireplace, consider sealed gas inserts. A room without a chimney may suit complete ventless fireplaces, where permitted. You can also return to our full Fireplaces collection to compare fireplaces, inserts, burners and gas log sets.

Why buy from My Cozy Outdoors?

We’re an authorized dealer for every brand here, so the full manufacturer warranty applies. If you have questions about venting, size or fuel for gas fireplace logs, call us and we will talk it through.

Frequently asked questions

Should I choose vented or ventless gas logs?

Choose vented logs if you have a working chimney and want the most realistic wood fire, accepting that most heat escapes up the flue. Choose ventless for room heat or without a working chimney, provided local code allows vent free use.

What size gas logs do I need?

Measure the firebox opening at the front and back, plus its depth. Leave clearance on each side of the set. Most sets are 18, 24 or 30 inches wide; larger sets reach 60 inches. If you’re unsure, call us and we will talk it through.

Natural gas or propane, and can I switch later?

Choose natural gas if your home has a natural gas line, or propane if it runs from a propane tank. Every set is built for one fuel and cannot be switched afterward, so choose for the home where you’ll use it.

Do gas logs work without electricity?

Match lit and standing pilot sets need no household power and can run during an outage. Remote and electronic ignition sets depend on their controls. For gas fireplace logs you can use during outages, choose match lighting or a standing pilot on the product page.