Gas Fireplace Direct Vent
The gas fireplace direct vent does not require a chimney but it does use vents. This vent can be horizontally out a side wall or vertically to the roof. The gas fireplace that is direct vent has a completely enclosed fireplace chamber that is very efficient.
This works by drawing fresh air from the outside for combustion that heats and then expels the by products to the outside as well. The front doors are made from a porous glass that allows radiant heat to pass into the room.
The venting system of a gas fireplace direct vent is a double walled pipe or, think of it as a pipe in a pipe. The inter pipe is the one that carries the bad air out. The outer pipe will bring in good air. This is a system that works in two ways. As the air is brought in, it is also warmed by the hot central venting pipe taking by products out. The gas fireplace direct vent will heat a room without taking the oxygen out of the room or even from the heated air it has heated. This will keep the room free from any fumes and combustible material like the ash or embers of a wood burning fire.
A direct vent gas fireplace is also what is call zero clearance. This simply means that the heat is pushed out the front and the sides stay cool. This will allow different items that are combustible to be place right beside the fireplaces. If you need to save even more space, the direct vent can be inserted into the wall. Or you can pick a mantel to surround your fireplace. With a choice of many different stone looks or rich looking wood grains and textures, one is sure to fit most any type home decorating scheme you have.
The gas fireplace direct vent are highly efficient. They are great for zone heating. This means you have a room or space that needs heating without heating the whole house. This will allow the central heating system to be turned down or off when other rooms will not be used, you would just heat the place or room you are in. Some of the fireplaces will come with gas fireplaces accessories such as a remote control and will have the manual control.
The gas fireplace direct vent will use either natural gas fireplace or liquid propane gas fireplaces. One of the great features of the gas fireplaces is the fact it can be used if the power goes out. The blower system is the only component that uses electricity and this will not work with out it, but the gas fireplaces do not require electricity. Since any energy source will produce carbon monoxide, it is recommended to have one in every home regardless of the type of heating system you may be using.
The gas fireplaces direct vent does not have to use the chimney but it does use a venting system to bring in fresh air for the combustion. With the sealed combustion, all the air used is brought in from the outside, completely independent of the household air, then the by products of the combustion are removed to the outside of the house. This is made possibly by the gas fireplace vent. This is really two vents in one. Think of it as a pipe inside of a larger pipe of a double walled pipe. The inner pipe will carry the by products outdoors and the outer pipe will bring fresh air inside. The air coming inside will be heated on the way in by the hot central vent pipe. This also improves the efficiency of the direct venting.
The ventless gas fireplaces will allow for a fireplace to be installed without the need of a chimney or the venting system. This will use the air in the room by drawing in, using for combustion, then blowing back into the room. The vent free gas fireplaces should come with ODS, Oxygen Depletion System. This is a monitor for oxygen levels in the air. If the oxygen level should drop by even 2 percent, the ODS will shut the gas appliance off. It is also recommended not to use any burning air fresheners, incense or candles. These items be produce soot that the ventless gas fireplaces will draw in. Some of the major manufactures will not produce the ventfree designs. They feel the air must be drawn from outside and the by products from the combustion to be directed outside of the house. Also, some states will only allow ventless gas fireplaces with a permit. Some states will not allow them at all. Check to make sure for your local codes.
Although the fireplaces are available to operate in either gas or propane, it is important to point these out when you are purchasing the unit. Also if you ever need to replace the gas logs fireplaces, you will need to buy the logs designed for the propane gas.
With great styles and designs, there is one to fit with your decor. The units can be free standing gas fireplaces by there selves or you can have some custom cabinets or seating built around them. You could even built your outdoor living area around the gas fireplace. There are plenty of wood tones and stone looks to chose from. Some of the major manufactures will have a remote control for the outdoor gas fireplaces. Depending on the model, some of the features may be that you might be able to control would be the on off function, some of the units will allow to adjust the fan settings and even a timed automatic turn off.
In looks, the natural gas fireplaces and the propane gas fireplaces are pretty much the same. This is two different types of fuel so it should be noted when the purchase is made or if the gas logs fireplaces have to be replaced. The gas fireplaces will come in several different styles and designs. From the corner gas fireplaces that will fit right into the corner and make use of the space that is usually not used to the outdoor gas fireplaces, there is a design for every need. Some of the gas fireplaces also have the option to mount on the wall. With the different materials and and colors, there is something for every decorating scheme. With rich wood tones and stone like mantels, there is something for every one.
The vent free or ventless gas log fireplace logs should come equipped with the Oxygen Depletion System, also known as ODS. This safety feature will monitor the oxygen levels in the room. If the oxygen level drops approximately 2 percent, the unit will shut down the ventless gas appliance. It is suggested by the major manufactures not to use any burning objects in the room with the ventless gas log fireplace. Things like a candle, air freshener or incense can produce soot. This could could cause a problem with the fact the ventless system will be drawing in the room air.
While the literature of the manufactures of the ventless gas fireplaces will state that these fireplaces not only meet but that they will exceed the guidelines set by the EPA, there are those who disagree. The argument is that fresh air must be brought in to compensate for the used air that is returned in the room. The thought is improved ventilation or exterior ducts will be required. While these units are free standing gas fireplaces and can be installed next to or against a wall or if you prefer, they can also be place anywhere you can run the gas line to. If you like they can be fitted into a wall recess.
The ventless gas fireplaces system operates without the use of vent, chimney or even a flue. This will allow for the gas fireplaces to be installed almost anyplace that the gas lines can be ran. These fireplaces are inexpensive and have low operating costs. Most of these units will operate during power outages. The air is drawn in from the room, used in the combustion and then returned to the same room. While some of the major manufactures will not produce these units, they are equipped with the Oxygen Depletion System, commonly referred to as the ODS. This system will shut the unit down if the oxygen in the air is id dropped by 2%. Some states will not allow the ventless systems at all while others allow with a permit. Most states have no problem with them. Be sure to check the state codes in your area.
Is the gas fireplace run off natural gas or propane? It is easy to determine. If the gas comes to your house and you pay the city or a gas company by the month, this is probably the natural gas fireplace. If you have a large, exterior tank outside on your property, and the gas is delivered by a gas company to fill up the exterior tank as you need it, this is probably propane gas fireplaces. The delivery time will be determined by your personal about of use and how large a storage tank you have.