Reddit
reddit.com › r/homeimprovement › venting a ventless gas fireplace?
r/HomeImprovement on Reddit: Venting a ventless gas fireplace?
September 18, 2023 -
I don't really understand the mechanics of how a gas fireplace works without a vent. I read about it online but it still doesn't make sense to me. Every time we fire up our ventless fireplace, we can smell some gassy fumes. It's not obnoxious, but enough for me to buy a carbon monoxide and gas detector to plug in the room.
Our burner is in a hearth that was previously a wood burning fireplace, and the damper can still open. Again, online articles claim that venting a ventless gas burner is a bad idea but I don't see why. Is there any reason not to do so if I don't care about heat efficiency?
Top answer 1 of 2
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https://www.regency-fire.com/en/Blog/ventless-fireplaces-explained Seems to me it’s one of those things that’s “safely dangerous”, you’re right to be concerned. By that I mean it is dangerous but someone decided it’s not dangerous enough to be banned, even though people do die from misusing them. This website says the room then needs to be at least a certain size to avoid harmful gas levels and also ventilated. Seems like it would only be a good heating option for a leaky old house.
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If you vent a ventless, essentially all the heat will go up the vent. You'll get some radiant heat directly in front of it but that's it. I know you said you don't care about efficiency but you'd basically just be burning gas and making carbon dioxide for fun.
Vertical Chimney
verticalchimney.com › vertical chimney care › blog › venting a gas fireplace without a chimney
How to Vent a Gas Fireplace Without a Chimney | Vertical Chimney Care
In the case of a nonexistent chimney and a desire to have a gas fireplace, all is not lost. There is a solution and it’s called a vent-free or ventless fireplace.
Videos
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Vented or Ventless Gas Fireplace (which one is better?) - YouTube
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Direct Vent vs Ventless Gas Fireplaces | What's the Difference? ...
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Vent-Free Technology: How it Works - YouTube
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Gas Fireplace 101 - Vented, Vent-Free & Direct Vent Gas Fireplaces ...
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How to Vent a Gas Fireplace Without a Chimney The Full Guide - YouTube
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How to Install a Ventless Natural Gas Fireplace - YouTube
Bromwell's
bromwellsthefireplacepeople.com › home › blog › venting a gas fireplace without a chimney: what to know
Guide to Venting a Gas Fireplace Without a Chimney
October 21, 2024 - What is the process for installing a gas fireplace in the absence of a chimney? Installation typically involves selecting a ventless insert or direct-vent system, preparing the installation site, and possibly adding a gas line, followed by the insert installation.
Houzz
houzz.com › discussions › 2365681 › convert-ventless-propane-fireplace-to-vented-p
Convert ventless propane fireplace to vented? P
Most applications that vent through the roof can just depend on gravity for a natural draft. Other considerations are the distance of the vent from windows and doors and height from the ground and/or roof. These vary depending on your local codes. Personally I would forget about converting your existing ventless to a vented.
Quora
quora.com › How-can-you-convert-a-ventless-fireplace-to-a-vent
How to convert a ventless fireplace to a vent - Quora
Answer (1 of 2): You don’t. At least you don’t really convert an unvented fireplace. You can replace it. If you have a universal unvented firebox with unvented logs, where the firebox and logs are a la carte, you could re-use the logs in a wood burning (vented) fireplace.
Houzz
houzz.com › discussions › 2370917 › venting-a-ventless-fireplace
venting a ventless fireplace
we have a ventless fireplace and cannot stand the smell. is there any way to vent one? it is on an outside wall. the chimney is just for looks and was already here when we bought the house. ... Vented vs. Ventless gas fireplace???
Heat & Glo
heatnglo.com › heat & glo › ideas › venting explained
Gas Fireplace Venting Explained | Heat & Glo
To vent the fireplace, a pair of rigid flues nestled inside one another—called a coaxial unit, since they both share an axis—is installed in sections ranging from 4" to 48" in length, with 90°- and 45° angled elbows that allow for flexibility ...
Highs Chimney
highschimney.com › home › blog › how to vent a gas fireplace without a chimney
How to Vent a Gas Fireplace Without a Chimney
January 25, 2023 - Learn the proper way to vent your gas fireplace with our easy guide. Tips, tools and materials included.
Thefireplacestore
thefireplacestore.ca › home › what are the best ways to vent a gas fireplace?
What Are the Best Ways to Vent a Gas Fireplace? - Zoroast The Fireplace Store
August 29, 2024 - Direct vent: Direct vent fireplace exterior brings in the air for the appliance and releases all the combustion gases produced during heating. The combustion system has durable sealants to maintain indoor air quality. Natural venting: The technology is open – not sealed. The venting system draws air from the unit’s surroundings for use in the combustion chamber. Byproducts escape through a pipe protruding on the roof. Ventless ...
Hearth.com
hearth.com › forums › main hearth forums › it's a gas!
Ready to replace Vent-Free fireplace with Vented | Hearth.com Forums Home
November 16, 2010 - http://www.valorfireplaces.com/ Valor makes awesome gas fireplaces. They have so many features and options to choose from. The output of some of them is comparable to a mediumn sized furnace so atleast you get something more than just a flame to look at. ... Valor is a great one. Regency, Heat N Glo are also good. You can still install a direct vent fireplace up thru your roof, you may just need to enlarge the hole and pay attention to any restrictor plate requirements.
JustAnswer
justanswer.com › home-improvement › 498yr-convert-vented-fireplace-ventless.html
I have a vented gas fireplace. Want to convert to ventless. ...
To reduce this, install a properly sized metal or ceramic damper gasket and use high-temperature caulk around the insert perimeter. Covering vents without addressing the damper won’t stop airflow.
Regency Fireplace Products
regency-fire.com › home › blog | your fireplace questions answered | regency › ventless fireplaces explained | safety of vent free fires
Ventless Fireplaces Explained | Safety of Vent Free Fires
April 10, 2025 - Ventless fireplaces use interior air for combustion, which includes anything present in the air and on the burner and release all emissions inside the room they operate – potentially decreasing the air quality you breathe. There are several different types of venting that can be used with a fireplace, below is a quick explainer of how they differ. Direct Vent gas fireplaces use outside air for combustion and release all emissions outside the home in a sealed system.
Bob Vila
bobvila.com › interior › heating & cooling › fireplaces & chimneys › considering a ventless gas fireplace? here's what you need to know
Considering a Ventless Gas Fireplace? Here's What You Need to Know - Bob Vila
January 11, 2022 - In addition to the option to create or convert a built-in ventless fireplace, freestanding ventless propane fireplaces are also an option. ... A traditional vented gas fireplace, such as the Empire Tahoe Deluxe Direct-Vent Fireplace, can be fueled by either natural gas or propane and has two vents that run to the exterior of the house.
Valor Fireplaces
valorfireplaces.com › home › fireplace blog › fireplace venting: what homeowners need to know
Fireplace Venting: What Homeowners Need to Know
June 17, 2025 - They draw air from the room for combustion and exhaust gases up and out through a vertical flue, similar to how a traditional wood-burning fireplace works. B-vent systems draw air from a room into the combustion chamber, making them less efficient than direct vent systems. ... B vent systems are slowly being phased out in favour of direct vent systems, but they may still have utility in certain applications where retrofitting is limited by structure or budget. Vent free (or ventless) gas fireplaces are designed to burn gas so efficiently that they theoretically produce minimal byproducts.
Quora
quora.com › How-do-I-convert-a-vented-to-a-ventless-fireplace
How to convert a vented to a ventless fireplace - Quora
Answer (1 of 2): “How do I convert a vented to a ventless fireplace?” Gas vented fireplaces, either natural vent (b-vent) or direct vent, cannot be converted to ventless/ventfree/unvented fireplaces.
Croft Fireplace
croftfireplace.com › home › gas fireplaces: vented vs vent-free (or unvented)
Gas Fireplaces: Vented vs Vent-Free (or Unvented) - Croft Fireplace
May 22, 2020 - A vent-free fireplace, on the other hand, does not require any venting. It pulls oxygen from the room to feed the fire. The fireplace has a regulator that produces a fine mixture of gas and air in a way that allows the gas to burn cleanly, and ...
Casualfurnitureworld
casualfurnitureworld.com › casual furniture world › casual furniture world's blogs › how to use vent-free gas fireplaces safely
How to Use Vent-Free Gas Fireplaces Safely - Casual Furniture World
February 6, 2024 - With a natural gas connection, your fireplace installation technicians can connect the fireplaces valves from your unit to the control panel and existing gas lines in your home. From there, vent-free gas fireplaces supply your home with continuous ...
The Torch Guys
thetorchguys.com › news › gas fireplace ventilation: proper exhaust for safe indoor use
Gas Fireplace Ventilation: Proper Exhaust for Safe Indoor Use — The Torch Guys
December 27, 2024 - For maximum safety and efficiency, plan to have your gas fireplace venting system inspected and swept annually. Creosote and debris buildup inside the vents affects the draft and risks chimney fires if ignored long-term. No, you cannot interchange B-vent and direct vent pipes. These systems are fundamentally different - one is an open combustion vent while the other is a sealed combustion setup. Follow your fireplace's specified approved venting components. Yes, even ventless fireplaces require periodic maintenance by qualified gas technicians.
NACHI Forum
forum.nachi.org › general inspection topics
Ventless gas fireplace and return duct
August 6, 2023 - Does the 10-ft rule apply here and/or is there a minimum that a return duct should be from a ventless gas fireplace? Return was in a big open room including the dining room, living room, and kitchen. TIA.
G&B Energy
gbenergy.com › home › 4 types of gas fireplace venting options
4 Types of Gas Fireplace Venting Options - G&B Energy
January 21, 2015 - Direct vent fireplaces are the most popular choice for homeowners. In fact, 90% of gas fireplaces are sold direct-vent because of their increased safety, efficiency, and versatility (Source: Build with Propane). In terms of versatility, you can vent a direct-vent fireplace horizontally or through ...