MMateoAug 16, 2026
Excellent
LOVE this suana. Maya and Norse Steam Team were amazing to work with!
Ventless gas fireplace inserts turn your existing wood burning fireplace into a gas heater with no liner and no vent pipe. Nearly all the heat stays in the room. Each vent-free gas insert uses natural gas or propane, selected on the page. A ventless fireplace insert suits occasional use and supplemental heat, rather than all-day heating. Check local code before ordering, since some areas restrict or ban vent-free units.
$2,049.00
How a ventless gas fireplace insert works
A vent-free insert keeps heat indoors without a liner. Measure your existing fireplace’s width, height and depth, front and back. Check the manual’s minimum room size and local building codes.
Empire Comfort Systems offers two lines in small and medium sizes: logs or a straight burner through reflective crushed glass. Choose standing pilot or electronic ignition. The log line lights with the flick of a switch without household power, even during a power outage.
Monessen offers a 33-inch-wide insert with a surround plate, a brick look or black panels, electronic ignition and a built-in fan.
Other ways to go
A vented insert uses a sealed direct vent pipe up the chimney, not room air. A ventless gas fireplace goes into a framed wall instead. For an open fire in your fireplace, consider ventless gas logs.
Why buy from My Cozy Outdoors
We’re an authorized dealer for both brands, so the full manufacturer warranty applies. Compare gas fireplace inserts or browse all fireplace inserts. Call us with your measurements and size, fuel or code questions, and we will talk it through.
Frequently asked questions
Are ventless gas fireplace inserts safe?
Yes, when used as directed. The clean-burning burner has an oxygen sensor that shuts the fire off if oxygen drops. Follow the manual’s minimum room size and local code, keep a carbon monoxide detector nearby, and use for evenings, not all day.
Where do the fumes go if there is no chimney?
They go into the room, mostly as warm air and water vapor. That keeps nearly all the heat inside, but requires adequate room size and an oxygen sensor. The old chimney is not needed and can be closed off.
What states ban ventless gas fireplaces?
California bans them statewide; New York City and larger Minnesota cities prohibit them. Other states and counties set limits, too. Rules change, so check with your local building office before ordering. If prohibited, choose a direct vent insert with a chimney pipe.
Will a ventless insert make my house damp?
A ventless gas fireplace insert releases water vapor, increasing humidity. Long burns can cause moisture buildup in tight homes; draftier homes may welcome it in winter. Use shorter stretches, crack a window if glass fogs, and avoid all-day heating.
Ventless or direct vent for an old fireplace I will only use now and then?
A ventless gas fireplace insert suits occasional fires where local code allows, with no liner and nearly all heat staying indoors. For daily winter use or tightly sealed homes, direct vent takes exhaust and moisture outside. Call us with your room size and plans.
