There are several different types of gas logs. Most of our members deal with the most popular types, vented and non vented or heating logs. The differences between these two logs sets is very technical. But to boil it down, Vented type logs can only be used in fireplaces with a working chimney that meet current codes. The damper is locked open upon installation must be kept open when burning. Placement of the logs can be changed to make the fire look different.

The gas usage varies by set size. A 24" vented set on natural gas consumes 90,000 BTUs. Look here for the BTU inputs of all our products: http://www.FireLogs.com/BTUInputs.htm

On a vented log you need to keep your damper open full while the fire is in use. On a non-vented log you can close your damper because it has an O.D.S. (Oxygen Depletion Sensor). The O.D.S. regulates how much Oxygen the unit is using from your room & will shut off if it is using too much. Because you close your damper you are retaining the heat & not loosing any existing heat!

Vent-Free logs are designed to be room heaters. Unlike vented log sets, with Vent-Free you can keep your damper closed and force the heat into the room rather than letting it go out the chimney.

Most vent-free gas logs use less gas than vented gas log sets, but will provide more heat in the home, since none of the heat is vented to the outdoors.

No. Vented and vent-free logs are different in many ways. Heatmaster vent-free gas logs are also certified as vented (with the exception of the thermostat models), but the vented logs must always be vented.

wood-burning fireplace to increase its efficiency and enhance its look. Gas log sets are made to be hooked up to a gas line to simulate the look of wood logs.

The main difference is that a gas burning insert is considered a certified heater whereas gas logs are not. Gas logs are a good option if you are looking for something easy, inexpensive to purchase and pretty to use, but they you don't expect much heat from.. They have no heat exchanger or fan and are very inefficient with about 90% of the heat going directly up the chimney. Compare that to a gas burning insert which can be as efficient as 85%.

Gas log sets are designed to be installed into an existing fireplace, while gas fireplaces are self-contained units. Gas log sets are significantly less expensive but are considered a decorative appliance because they provide less heat.

Vent-free logs are rated as a heating appliance and do not require venting to the outside. Vented logs are rated as decorative and require venting to the outside. Heatmaster vent-free logs are CSA certified both vent-free and vented.

Vented gas logs can only be used in a wood-burning fireplace. A coal-burning fireplace is too shallow. Vented gas logs are not recommended for a stove due to safety concerns.

Answer: An insert is a metal box that fits into the opening of a wood-burning fireplace to increase its efficiency and enhance its look. Gas log sets are hooked up to a gas line to reproduce the look of wood logs.

Yes, they are a good source of emergency heat. It is not economical to try to use them for zone heating. However, in an emergency situation, the cost per hour is not as important.

Vented have a better looking flame and consumes more gas (90,000+- BTUH) vent-free heats approximately 800 square feet and consume up to 40,000 BTUH. But the flame does not look as good. Great looks and low heat or good looks and great heat, that is the question! No it is not right. Never run the gas line into a high heat area. Go find another installer that can run the gas line out at the floor of the fireplace where is should be.

Martin Hearth & Heating "Vented" log sets are designed for realism and beauty and carry the CSA approval as decorative gas appliances. These burners produce large flames for enhanced aesthetic appeal with radiant heat and fit easily into existing full masonry and factory-built wood burning fireplaces. Combustion air is supplied primarily from the home or room and byproducts of combustion are carried outside via the chimney.

No. Very few vented logs are certified for use with a blower. Heatmaster vented logs are not. However, if your fireplace has a built-in fan system, this can be used.

The size of the gas line varies by the BTUs needed for the gas log set and the distance of the gas line run. It also varies by fuel, propane verses natural. Follow this link for a chart of gas ling sizes: http://www.FireLogs.com/gasline.htm.

Unvented gas appliances are not allowed due to potential carbon monoxide risks. Nationally recognized fire codes do not allow these appliances to be located in a childcare setting. It should be noted that manufacturer's guidelines instruct the owner to keep a window open during the use of these appliances.

If vented, the fireplace damper must stay fully open when in use. This is the same position used with a wood fire. Vent free gas logs on the other hand are different. The damper can be fully closed letting all the heat into the room. The damper can also be used to regulate the amount of heat produced into the room. In other words you can open the damper to let some or most of the heat go up the chimney when you want to use it as a decorative log set. I have a wood stove.

We recommend not moving the logs. Placement of the logs is critical to the operation and performance of the fireplace. Misarranged logs can result in operational problems. If you notice the logs have been moved during cleaning, contact a service person or check your installation and operating instructions for proper placement.

There are 2 types of gas logs; vented and vent free. With a vented gas log you will get a little heat but because your flue has to be completely open you are actually losing more heat than you will receive. Vent free logs on the other hand give you the ability to close your flue and use the fireplace as a heat source.

The installation manual includes detailed diagrams showing where the logs must be placed to operate at the product's optimum level.

The flames are not adjustable but they can be enhanced by ember material and the sand on the burner to give the ultimate "RealWood" look.

Gas logs create a beautiful roaring fire that will liven up a party or enhance a relaxing, quiet atmosphere. Gas logs are convenient, easy to operate and require minimal maintenance.

instant, roaring fire with no logs to lug or mess to clean up is what makes gas logs a joy to own without polluting the air like a wood burning fire.

Yes. Most vented log sets do soot. Since the flames touch the logs, soot will build up on them during the combustion process.