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You have to know the advantages and disadvantages of a vented and a ventless gas fireplace before deciding to buy one.

If you like sitting by the fire in the cold winter nights than you must be having a chimney in your house. We love enjoying the cool, crisp fall evenings in Sedona, Arizona next to our outdoor fireplace. What can be more beautiful than to sit with your loved ones around the fireplace and warm up when it's snowing?

And if you have a gas fireplace you'll not have to worry about chopping wood or making the fire. These types of fireplaces work with natural gas or propane and they generate the same amount of heat as the ones with firewood.

There are two types of gas fireplace: vented gas fireplace and ventless gas fireplace. The vented gas log set is the one that needs a chimney to tire out the toxic carbon monoxide they eliminate when burning the natural gas. Vented gas fireplaces have the advantage of not eliminating odors into a room because they get their necessary combustion air from the outside and then eliminate the carbon monoxide back outside. The disadvantage is that a great percent of the heat they produce is eliminated along with the exhausts.

A ventless gas fireplace is also called a vent free fireplace because it has no outside ventilation. The ventless gas fireplace insert is different from a vented fireplace because it can eliminate odors into a room. That is because the air that is eliminated contains odors is drawn back into the product, burned again and then eliminated into the room. This is a disadvantage of the ventless gas log insert, but it also has an advantage: all the heat produced by the device is kept inside the room.

A ventless gas fireplace can be very easily installed or you can buy a portable one that can be placed anywhere in the room. All they need is to be connected to the available gas line. They don't need electricity to work which is also an advantage because when the power will be off you'll still be able to warm up the room.