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What is a ventless wood stove?

September 11, 2022 Chris Normand

A ventless biofuel fireplace is simply a fireplace that does not require a chimney, flue or any other venting duct. If you have a biofuel fireplace and some biofuel, then you have all you need to create a beautiful looking fire.

What does a ventless stove mean?

Natural Vent gas fireplaces (B-Vent) use air from within the home for combustion and release emissions outside the home. Ventless fireplaces use air from within the home and release emissions within the home – resulting in poor air quality and potential health risks.

Which is better vented or non vented gas logs?

Ventless fireplaces are more energy efficient than vented fireplaces because no heat escapes up the flue, so you'll save money on gas utility bills. A vented gas fireplace uses more gas to create the same level of warmth because some of its heat escapes through the flue.

How does a ventless fireplace work?

Also known as an unvented or vent-free fireplace, a ventless gas fireplace operates with natural gas or liquid propane (LP) that flows into a gas burner mounted in the fireplace. When ignited, the flames run through gaps in artificial ceramic fiber logs, giving the illusion of a real wood-burning fireplace.

Are ventless fireplaces any good?

Ventless fireplaces emit water vapor, which seems a lot less scary than something like carbon monoxide, but it can still cause a problem in your home. High humidity perpetuates the growth of mold and mildew in your home, which can trigger health problems—especially if someone in your family is asthmatic.

Does a natural gas fireplace need to be vented?

Gas fireplaces need to be vented by a chimney or other vent, unless you have a ventless gas fireplace. Ventless gas fireplaces do not need ventilation and are designed to burn cleaner with a lower flame that will not smoke. If your gas fireplace is not a ventless model, then it will likely need a vent of some sort.

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Can you put a ventless fireplace in a bedroom?

For one, these ventless fireplaces aren’t meant to be installed in bedrooms or rooms without ample square footage. Guidelines also advise that they shouldn’t be run for too long (typically no more than two hours). So if you were hoping for heat and flames for hours in this space, the ventless pick isn’t for you.

How long do gas logs last?

Q: How long do gas logs last? A: In the average home, a well-maintained vented log set with ceramic logs will last 10 or more years. A well-maintained vent-free log set with ceramic logs can also last a long time, but, if heavily used, will begin to wear in 3-5 years.

What states ban ventless fireplaces?

States including California and Massachusetts have banned the installation of ventless fireplaces, and the devices are not permitted in HUD housing. Individual municipalities may also ban them, so check with your local building authority before you purchase a ventless fireplace.

Are vent free stoves safe?

Ventless fireplaces produce small amounts of nitrous dioxide and carbon monoxide which can be deadly in large doses. The CDC warns against exposure of any level of carbon monoxide, stating that up to 500 people die per year due to accidental carbon monoxide poisoning.

Which is safer vented or ventless gas logs?

In general, vented fireplaces are better in terms of safety and function. However, most of the heat is lost through chimneys, so consider using a direct vent. Ventless fireplaces are still a great option and are safe when used properly.

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How hot does a ventless gas fireplace get?

Average sizes range from 12 inches to 42 inches, although you can find much longer, like 72 inches. The heat output can vary from 20,000 to 40,000 British thermal units (BTUs).

Are ventless gas stoves safe?

Ventless gas fireplaces emit dangerous and noxious gasses into the room they are operating. Without proper ventilation and safety systems in place there can be serious health risks associated with burning gas in a ventless fireplace.

Why are my gas logs turning black?

The most common causes of soot buildup in a gas fireplace are ceramic fire-logs that have been moved out of their proper position and burner ports that are clogged. If your firelogs have moved, then this can interfere with the path of the flames that work to ensure the clean burning of the gas.

Is it cheaper to run your gas fireplace or furnace?

A modern furnace is more efficient in turning gas into heat than a gas fireplace. This means that although a furnace costs more to run per hour than a gas fireplace, it turns more of that energy into heat and can warm a whole house rather than a single room.

Do water vapor fireplaces cause mold?

Additionally, ventless fireplaces produce water vapor as a byproduct of the combustion process, which can lead to high levels of humidity in the home and an increased risk of mold growth.

How much heat does a ventless fireplace put out?

Average sizes range from 12 inches to 42 inches, although you can find much longer, like 72 inches. The heat output can vary from 20,000 to 40,000 British thermal units (BTUs).

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How do you clean a ventless gas fireplace?

1) The first thing you will need to do is get a vacuum with a hose and preferably a brush on the end of the hose. 2) Using the vacuum remove the surface dust from the bottom of the fireplace around the gas log burner then remove the log set from the burner and do the same.

Do gas logs heat a room?

Vent-free gas logs are an inexpensive and efficient way to add extra heat to a room without having to open the damper on your fireplace. These logs use the air from within the room for combustion and then put heat back out into the room.

Is it OK to run a gas fireplace all day?

In short, you really shouldn’t let a gas fireplace on for too long—specifically more than three hours at a time.

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