Monessen Hearth
monessenhearth.com › monessen hearth › fireplaces › vent free fireplace inserts
Vent Free Fireplace Inserts | Monessen Hearth
The Solstice vent-free gas insert quickly and easily turns your old, wasteful fireplace into a beautiful, super-efficient heat source.
Woodland Direct
woodlanddirect.com › home › fireplace › ventless fireplaces
Ventless Gas Fireplaces - Vent-Free | WoodlandDirect.com
Ventless or Vent-Free fireplaces ... the heat that’s produced to stay inside your home. You must hire a licensed gas professional to install your Ventless fireplace....
Ventless Gas Fireplace Inserts
CO shouldn't be a concern. The unit itself will have a shutoff long before O2 levels get notably depleted. If your house is too airtight, then it might kick in frequently. Otherwise it never will (and with a 1960 house, it's probably plenty non-airtight unless someone's done some major eco-renovation on it). The two main concerns are humidity and the slight combustion remnants that some people claim they can sense and affect them adversely. Sounds like humidity isn't a huge concern for you, though if you use this thing a lot it will dump a lot of moisture into your air. IMO, if you want a fireplace for a "every once in a while" type thing, then ventless is fine. If you're going to be using it every day in the winter, pony up for the direct vent. I've actually purchased two used direct-vent fireplaces, so consider that option. Though venting materials alone will add ~$300 to the package unless you have an easy out-the-back-wall option. (Sounds like you'll be going up the existing chimney, which is another good option, but requires a healthy amount of stainless ducting.) More on reddit.com
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December 16, 2016unbiased truth about ventless gas fireplaces?
The number one complaint I see on this sub about ventless gas units is the massive amount of moisture it puts in the air. That said, my in-laws have a ventless gas stove in their rather large family room and everyone loves it. It's great to stand in front of and warm your rear after you just came in from the cold. They don't run it for long periods of time so between that and the large size of the room, the extra moisture has no apparent effect. Edit: In summary, I'd say it's great for point of use (warming your buns, power out for a day) but I wouldn't use one for primary heat. More on reddit.com
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January 25, 2016What is the point of a ventless fireplace?
They're illegal in Canada. Fire produces combustion byproducts. Period. It's a chemical reaction. It's not magic. These combustion byproducts are not beneficial to human life. Short term buildups of said byproducts, or repeated long term exposure to said byproducts, can endanger human life. It just not a good idea, and should be avoided if possible... Which simply amounts to using a vented system or electric heat. More on reddit.com
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November 1, 2024Ventless gas fireplaces
ventless will put [aaprox] 1 gal of water vapor into your house for every 1 gal of fuel burned. Basically a recipe for condensation/mold More on reddit.com
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October 21, 2020How do I measure my existing fireplace for a ventless insert?
You will need four measurements for the opening: Front Width, Back Width, Height, and Depth. Ensure you also check the required clearance on all sides as specified in the product manual (check specifications sections on the product page).
modernblaze.com
modernblaze.com › modern blaze › ventless gas fireplace inserts
Ventless Gas Fireplace Inserts | Top-Rated, Safe, Easy Install ...
Can I install a ventless gas insert myself?
While the physical installation is simple, we strongly recommend having a certified gas professional install and connect the unit to ensure safety and compliance with all local codes.
modernblaze.com
modernblaze.com › modern blaze › ventless gas fireplace inserts
Ventless Gas Fireplace Inserts | Top-Rated, Safe, Easy Install ...
How much heat do ventless gas inserts put out?
Ventless gas inserts are highly efficient, operating at nearly 100% efficiency. They are designed for supplemental heating and can significantly warm a large living space.
modernblaze.com
modernblaze.com › modern blaze › ventless gas fireplace inserts
Ventless Gas Fireplace Inserts | Top-Rated, Safe, Easy Install ...
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Modern Blaze
modernblaze.com › modern blaze › ventless gas fireplace inserts
Ventless Gas Fireplace Inserts | Top-Rated, Safe, Easy Install – Modern Blaze
They slide into your existing firebox and connect to a gas line, letting you enjoy real flames, quick heat, and easy control with remotes or wall switches. This collection includes vent-free gas log inserts, contemporary burner inserts with fire glass, 2‑sided inserts, and complete systems that include a firebox, burner, and gas logs for a full ventless fireplace conversion.
The Home Depot
homedepot.com › heating, venting & cooling › fireplaces › fireplace inserts › gas fireplace inserts
Ventless - Gas Fireplace Inserts - The Home Depot
Get free shipping on qualified Ventless Gas Fireplace Inserts products or Buy Online Pick Up in Store today in the Heating, Venting & Cooling Department.
Whitemountainhearth
whitemountainhearth.com › home › products › vent-free › vent-free inserts
Vent-Free Inserts | White Mountain Hearth
November 7, 2023 - Choose a product to learn more Traditional Inserts Contemporary Inserts A vent-free gas insert turns your existing wood-burning fireplace into an attractive and efficient heat source.
US Fireplace Store
usfireplacestore.com › collections › ventless-gas-fireplaces
Ventless (Vent-Free) Gas Fireplaces – US Fireplace Store
Transform your living space with ventless gas fireplaces. Visit our website to explore a range of modern, vent-free designs and efficient heating solutions. Upgrade your home today for a cozy and stylish environment. Discover the perfect fireplace that combines functionality and elegance.
Empireheat
empireheat.com › collections › vent-free fireplaces
Vent-Free Fireplaces — EmpireHeat.com
A Vent-Free system uses room air for combustion and delivers 99.9% of the available heat energy directly to the room. Vent-Free systems have an unmatched safety record, thanks in part to their clean-burning technology and their Oxygen Depletion ...
Reddit
reddit.com › r/homeimprovement › ventless gas fireplace inserts
r/HomeImprovement on Reddit: Ventless Gas Fireplace Inserts
December 16, 2016 -
I've searched through the sub and read the previous posts but they're several years old and locked for responses.
I'm looking at converting out existing wood burning fireplace (which drafts poorly) to a gas insert and debating the direct vent vs ventless options. The ventless is a lot cheaper and much more efficient which is why I'm considering it. I've read plenty of articles debating both sides of the health issues related to CO but I'm looking for opinions from people who actually own and use their ventless fireplaces.
I'm aware of the potential CO issues and moisture that these things create but I'm just trying to get a feel for how serious they would be for our home.
We have a 1960s era 2 story house, which is hardly air tight and the existing fireplace is in our great room which is open to the kitchen. Total square footage for the combined rooms is ~500sqft. I'd be looking at a 25k BTU unit which would only be used occasionally and not as a primary heat source. How much of a concern is the CO in a room that size? Should I be concerned running this thing for a couple hours once a week or so?
Some factors we have that may help mitigate the CO isssue: We have a gas range in the same room with a 900 CFM hood installed and properly vented to the outside. If the CO detectors were to ever go off we could clear the room pretty quickly. We also have a brand new 96% efficient furnace with variable blower that runs on low 95% of the time to circulate air. I'm not concerned with the moisture aspect because we're in Ohio and our house is typically very dry in winter. Humidity in the house is around ~20% if we don't use the humidifier. I'm actually thinking the ventless fireplace could help here.
Who has one of these? Am I crazy to have one installed instead of spending the extra money for the direct vent?
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CO shouldn't be a concern. The unit itself will have a shutoff long before O2 levels get notably depleted. If your house is too airtight, then it might kick in frequently. Otherwise it never will (and with a 1960 house, it's probably plenty non-airtight unless someone's done some major eco-renovation on it). The two main concerns are humidity and the slight combustion remnants that some people claim they can sense and affect them adversely. Sounds like humidity isn't a huge concern for you, though if you use this thing a lot it will dump a lot of moisture into your air. IMO, if you want a fireplace for a "every once in a while" type thing, then ventless is fine. If you're going to be using it every day in the winter, pony up for the direct vent. I've actually purchased two used direct-vent fireplaces, so consider that option. Though venting materials alone will add ~$300 to the package unless you have an easy out-the-back-wall option. (Sounds like you'll be going up the existing chimney, which is another good option, but requires a healthy amount of stainless ducting.)
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We had an infrared ventless natural gas heater ( https://m.lowes.com/pd/Dyna-Glo-30000-BTU-Wall-or-Floor-Mount-Natural-Gas-Vent-Free-Infrared-Heater/999976644?cm_mmc=SCE_PLA_ONLY- -SeasonalLiving--SosHeating-_-999976644:Dyna-Glo&CAWELAID=&kpid=999976644&CAGPSPN=pla&k_clickID=2bf23bb4-e456-41ec-9a6d-728516b845b8) and it was nothing but problems. The house was built in 1940 and was definitely not sealed but all of the new wood windows we put in eventually grew mold due to the moisture the ventless heater put out. Just a thought.
Amazon
amazon.com › Duluth-Forge-FDI32R-Control-Fireplace › dp › B017XS5JM0
Amazon.com: Duluth Forge Dual Fuel Ventless Gas Fireplace Insert, Remote Control, 9 Fire Logs, Use with Natural Gas or Liquid Propane, 32000 BTU, Heats up to 1500 Sq. Ft., Black : Home & Kitchen
VENTLESS DUAL FUEL TECHNOLOGY: Patented technology gives the option to fuel the Fireplace Insert with either Natural Gas or Liquid Propane; 32000 BTU Vent Free gas heater is 99.9% efficient; No outside duct or chimney is needed to heat up to 1500 sq.
Monessen Hearth
monessenhearth.com › monessen hearth › fireplaces › vent free gas log sets
Vent Free Gas Logs | Monessen Hearth
If you already have an existing masonry or pre-fabricated wood burning fireplace and are tired of chopping, curing and burning wood, a vent free gas log set can replace all that simply by adding a gas line.
Factory Buys Direct
factorybuysdirect.com › home › gas fireplaces
Gas Fireplaces – Factory Buys Direct
Duluth Forge FDF400RT-ZC, Vent Free Indoor Fireplace Insert Zero Clearance 32,000 BTU, Dual Fuel Propane and Natural Gas, Yellow Flame, R...
Enviro
enviro.com › home
Enviro - Home
September 19, 2025 - Enviro: Gas & Pellet Fuel Fireplaces, Fireplace Inserts and Freestanding Stoves.
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 ...
Fine's Gas
finesgas.com › cats › fireplaces › vent-free › fireboxes
Ventless Fireplace Inserts and Fireboxes | Fine’s Gas
Looking for the perfect Ventless Fireplace Insert or Firebox? Fine’s Gas carries a full-line that are easy to install and do not require a chimney or flue.
Regency Fireplace Products
regency-fire.com › home › products › gas fireplace inserts
Gas Fireplace Inserts | Replace Old Wood Fires | Regency
Upgrade your existing fireplace ... fireplace inserts are designed to be placed inside an existing masonry fireplace and uses the existing fireplace and chimney to hold the unit and support venting....
JustAnswer
justanswer.com › hvac › nyse5-builder-installed-pleasant-hearth-ventless-gas-insert.html
Gas Insert Alarm Issues? Expert Troubleshooting Guide
Customer: My builder installed a Pleasant Hearth ventless gas insert in the wooden cabinet he constructed between two wooden bookcases. There was space all around it. When we turned it on, both the CO alarm and the fire alarm activated, so we switched it off. I hired someone to create a hole in the top and run flue piping up through the roof to "vent" it. The alarms went off again. The manufacturer advised opening the windows and running the fireplace for six hours.
Heat & Glo
heatnglo.com › heat & glo › new fireplaces page › gas › indoor gas fireplaces
Vented Gas Fireplaces | Heat & Glo
Enjoy a sophisticated fire at a smaller footprint, thanks to the sleek design of the Cosmo gas linear fireplace. Personalize the look with a range of fronts, log sets and interior options. Heat management makes it safe to install your TV above the fireplace, with just mere inches in between.
Majesticproducts
majesticproducts.com › majestic products
Majestic Products: Fireplaces & Home Hearth
Shop fireplaces, gas log sets and outdoor fireplaces at Majestic products. Discover versatile hearth systems with style and adaptability.
The Torch Guys
thetorchguys.com › the torch guys › modern ventless gas fireplaces for your home — vent free gas fireplace beauty without the vent
Ventless Gas Fireplaces for Sale | Safe, Certified Models | The Torch Guys
Our modern ventless gas fireplaces are engineered to create harmony in your space for blending efficiency, elegance, and tranquility for the perfect evening atmosphere. Reach out to us at 410-324-6322 or email [email protected] to get started. At The Torch Guys, each ventless fireplace insert is crafted with precision and care by experienced artisans.