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I’ll say right up front, when deciding between direct vent gas stove versus
ventless gas stoves, always go with the direct vent gas stove option whenever
possible. Direct vent gas stoves are by far the safer and healthier choice.
Several years ago we lost electricity to our home for four days during the
winter. Fortunately we had a wood fireplace that kept the home from dropping
below 32 degrees and preventing frozen pipes. However, the fireplace struggled
to keep the home at 45 degrees. Needless to say, living through those cold days
and nights was quite miserable.
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Shortly after we had electricity restored to our home we went out and purchased
a direct vent gas stove. In the process of looking at gas stoves I learned quite
a bit about vented gas stoves and ventless gas stoves.
Vented Gas Stoves vs Ventless Gas Stove Basics
Direct vent gas stoves have a pipe that vents combusted fuel pollutants out of the
home. The vent pipe is directed outside the home either via a back wall adjacent
to the gas stove or via the roof. Direct vented gas stoves have very high efficiency
rating levels compared to wood or pellet stoves.
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A ventless gas stove on the other hand has no vent pipe, which makes them easy
to install and more affordable. Consequently the combusted fuel pollutants
associated with a ventless gas stove end up venting out to the interior of the
home, albeit they are at extremely low levels. This said, ventless gas stoves
have extremely high efficiency levels, e.g. 99.9%. By ensuring high efficiency
burning, pollutant levels released to the interior of a home are minimized.
The combusted fuel pollutants include Carbon Monoxide, Carbon Dioxide, and
Nitrogen Dioxide.
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Though the pollutant levels released from ventless gas stoves are well below
Federal guidelines, combined with the facts that a home is tightly sealed during
the winter months and that there is other air pollutants trapped in the home,
one has to question the air quality of a home burning a ventless gas stove.
To their credit, ventless gas stoves also have built in oxygen detection safety
sensors to sense if oxygen levels within the home are too low. If the oxygen
sensor detects that the oxygen level is too low it automatically shuts off the
ventless gas stove. The oxygen sensor switch-off point is set well above what is
considered a dangerously low oxygen level.
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Ventless gas stoves also produce higher humidity levels within the home when
operated. This can have both positive and negative aspects to the home.
Finally, ventless gas stoves have lower maximum BTU (heat output) ratings, to
help reduce the pollutant output levels within the home and to comply with
federal regulations.
Finally, some states and countries forbid the use of ventless gas stoves in
homes due to the safety concerns mention above. |

Photo By Mark Donovan |
Vented Direct Gas Stove and Ventless Gas Stove Prices
Ventless gas stoves typically cost less than vented gas stoves. Ventless gas
stoves start out at around $500, where direct vent gas stoves are priced in the
$1,000 to $2,000 price range.
Ventless and Direct Vent Gas Stove Options
Direct vent and ventless gas stoves are available in numerous styles, sizes and
BTU (heat output levels). Glass options also vary widely. Carefully consider the
room(s) that you plan to heat with it and ask the stove supplier what is best
for your particular situation.
In addition, when buying a vented gas stove or ventless gas stove, make sure to
carefully consider all the options, including the type of ignition system,
thermostat/flame/remote controls, and the incorporation of a variable speed
blower fan.
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Direct Vent Gas Stoves from Amazon.com
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