Ventless gas heaters are room-heating furnaces that do not vent air to the outside of the house. Instead, the oxygen that is needed to fuel the combustion process for heat is taken from the air inside of the room in which the unit is placed, and the resulting heat is vented back out directly from the unit.

In this regard, are ventless heaters dangerous?

There are safety concerns, and building scientists point out that ventless heaters can damage homes if they're not sized or used correctly. Ventless heaters exhaust 100 percent of their combustion products into the house. This means chemicals like carbon monoxide, nitrogen dioxide and water vapor enter the house air.

Also Know, do vent free heaters smell? In many cases, the logs may be improperly placed or there may be other minor problems, but only a gas company can determine if the problem is related to the gas. Vent-free fireplaces can easily have annoying odors. Vent-free fireplaces have been known to have odors associated with them that worry the owners.

Subsequently, one may also ask, are vent free wall heaters safe?

The truth is, vent free heaters are, in and of themselves, extremely safe, economical to operate and, when properly sized and maintained, are proven to meet today's rigorous standards for air quality. And as long as consumers demand energy-saving products, the future of vent-free appliances looks very bright indeed.

Are vent free heaters legal in Canada?

Vent free fireplaces are fireplaces that do not require any type of vent system. Currently, these type of gas fireplaces can only be installed in some areas of the United States. They are not approved for use in Canada.

Which is better vented or ventless gas fireplace?

It all depends on your needs, but vented sets have a more realistic flame and can be used in an existing real wood fireplace, while ventless logs are more efficient. A gas fireplace makes a great alternative for homeowners looking for a supplemental heat source that also provides a beautiful ambience.

Why does my ventless gas heater smell?

Because they burn only small amounts of natural gas or propane, they are safe to operate indoors. In a gas ventless fireplace, oxygen is provided by the air in your home. If that air contains impurities, those impurities are drawn in with the oxygen and can produce odors which are amplified by the flame.

Do ventless gas heaters create moisture?

It is a non-issue, there is no danger from a properly installed and run ventless heater. For many years I ran a recording CO detector, and it never registered more than the outside air. To the OP's original question, ventless heaters do produce water vapor.

Do ventless gas heaters cause condensation?

Research from the Gas Research Institute indicates that some ventless gas heaters are oversized for the rooms they are intended to heat. This can result in flue gas and water vapor emissions in excess of what the area can exhaust through normal ventilation and exfiltration in a certain period of time.

Can a ventless fireplace make you sick?

Vent-free fireplaces can make you sick For example, sulfur dioxide is a respiratory irritant that causes symptoms like difficulty breathing, coughing, and wheezing. It's particularly dangerous for sensitive groups like children and the elderly, and can cause serious complications for people living with asthma.

Can a ventless heater be vented?

Ventless gas heaters, however, do not use such a vent; instead, they simply vent the heated combustion exhaust directly into the room in which they are placed, and provide a much more effective heat source as a result.

Is ventless gas fireplace safe?

Venting any type of combustion is ideal. As forwarded by the ventless gas appliance industry, though, ventless gas fireplaces can be safely used because they burn a low enough quantity of gas that it will not present a hazard.

Are wall heaters dangerous?

Wall heaters allow for additional space and optimal heat, but there also are certain safety concerns when it comes to these affordable and convenient units. While electric wall heaters do not use gas, chemicals or flames, the risk lies in the heated coils. Do not put anything within three feet of your wall heater.

What is the difference between vented and unvented gas heaters?

Vented and Ventless Gas Logs are a little different. Vented gas logs burn like a real wood fire with a yellow flame that produces smoke. Ventless (vent-free) gas logs burn cleanly with a lower flame that does not smoke. You can burn them with the damper closed to heat your room.

How long can you run a ventless gas fireplace?

two hours

Can you leave a gas heater on overnight?

Fearon emphasises that you should not leave a gas heater on overnight. Some other heaters can be left on overnight, says Barnes, but “it's a good idea to turn it down”. “A lot of them will have timer options on them so you can run it for a couple of hours while you go to sleep.

Do propane heaters need ventilation?

However, if you will be heating a room inside a home or other building, choose an electric space heater instead, because propane heaters can pose a carbon monoxide hazard when used without adequate ventilation. Propane heaters need oxygen to breath.

How safe are unvented gas heaters?

With an unvented gas space heater, the combustion process is very complete--99.9% efficiency or higher, according to manufacturers--but that tenth or hundredth of a percent can be pretty nasty, containing constituents as carbon monoxide, nitrogen dioxide, soot, and unburned hydrocarbons.

Is Blue Flame better than infrared?

Blue Flame heaters typically work better in insulated areas, while Infrared heaters may work better in un-insulated areas as they will heat objects before the air.

Can you get carbon monoxide poisoning from a propane heater?

Carbon Monoxide (CO) and Propane. Carbon Monoxide is the product of incomplete gas combustion often because appliances are improperly adjusted. Properly functioning propane appliances will produce what is called an "ideal burn" during combustion and present no danger of Carbon Monoxide poisoning.

Do wall heaters produce carbon monoxide?

Carbon monoxide is produced by devices that burn fuels. Therefore, any fuel-burning appliance in your home is a potential CO source. Electrical heaters and electric water heaters, toasters, etc., do not produce CO under any circumstances.

Should ventless gas logs smell?

Vent-free gas log will not produce an odor unless the air it takes in has an odor. There are many products that will cause the appliance to smell and below are just a few.

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