“Fully Vented” gas logs must be burned in a fireplace that is capable of burning real wood and must be burned with the damper open. The reason for this is that they do not burn the gas cleanly and create exhaust that is very similar to burning a real wood fire. This exhaust needs to be able to go up the chimney.
Can you close the flue with gas logs?
As a general rule, if you have a gas log fireplace, you should never close your flue when in operation. If the fireplace is not operating, but the pilot light is lit, you should not close your flue.
Do all fireplaces have a flue?
Technically, a flue is any open vertical space in a chimney that allows smoke to escape the home from the firebox. But because every chimney’s flue must be lined, a chimney liner is usually referred to as the flue, as well. Every wood-burning or gas fireplace has a flue.
Do you have to vent gas logs?
Vented gas logs must be vented through a functional chimney in order to move all burning by-products outside the home. Vented gas logs produce the most realistic flames but put off less heat than their vent-free counterparts due mostly to the fact the chimney flue must be open when the fireplace is in use.How do I know if my gas logs are ventless?
Vent free units are open-door style units that do not have a chimney. If you look inside a vent free unit (there should not be a single pane of glass on the front) you should not see an exit at the top to the chimney.
Do you leave pilot on gas fireplace?
We recommend that you turn off your gas fireplace pilot light seasonally. Turning off your gas fireplace’s pilot light can save a substantial amount of energy and money. It is important to remember that not all gas fireplaces have “standing” pilot light, or, a pilot light that is “always on”.
Do you close the damper on a gas fireplace?
If you have installed gas logs in your fireplace, the damper should never be closed. If you have a pilot light constantly burning under your gas logs, shutting the damper puts you, your family and your pets at severe risk of carbon monoxide poisoning.
Can I use vent free gas logs in a vented fireplace?
You can use ventless logs in a vented fireplace. If you do use a vent-free logs, you won’t have to open the damper since these logs don’t require venting. Even though the chimney can remain closed, you will still lose some of the efficiency and heat from using this type of set in a vented fireplace.Should I keep the glass doors closed on my gas fireplace?
The doors should always be fully open or fully closed. … The glass doors should be closed as the fire dies down to minimize the amount of room air going up the fireplace chimney. When burning gas logs in a wood-burning fireplace, the glass doors should always be fully open when the gas logs are burning.
Do ventless gas logs produce carbon monoxide?Ventless fireplaces produce small amounts of nitrous dioxide and carbon monoxide which can be deadly in large doses. … In addition to carbon monoxide, ventless fireplaces also produce a high levels of water vapor. The increased level of water vapor in the home will increase humidity, increasing the risk of mold growth.
Article first time published onHow do you vent a gas fireplace without a chimney?
If you don’t have a chimney, a natural vent system can also use a pipe venting system, which is typically installed through the roof. Here, you can get around having to use a brick and mortar chimney to rid the home of fumes and use a pipe system instead.
How do I know if my gas fireplace has a flue?
Follow the gas line from beneath the logs to where it disappears in the wall or floor. If the gas is merely contained by a simple gas line, then the logs are vent free. If there is a small cylinder attached to the gas line, then the logs are vent-free.
Does a gas fireplace need a chimney liner?
Homeowners with gas or electric inserts most likely do not need a new liner because those types of fuel don’t produce enough heat to damage a masonry chimney.
What's the difference between a damper and a flue?
The flue is simply the open middle of the chimney that the smoke goes up. … A damper is intended to shut off– either fully or partially- the chimney flue. The reason you’d want to do that is to keep heat ($$$) from escaping up the chimney.
Are gas log fireplaces efficient?
Gas logs will also emit more heat than a wood burning stove. … Gas logs are only about 10%-20% efficient, with the majority of heat produced escaping through the chimney. (The same is true with a traditional wood burning fireplace.)
Should flue be open or closed?
The damper should always be fully open before lighting a fire and when the fireplace is in use. Close it when it’s not it use. Operating the fireplace with the damper partially closed will not generate more heat. Instead, blocking the passage through the flue will result in smoke entering the home.
Can you get carbon monoxide poisoning from a gas fireplace?
Yes, gas fireplaces are one potential cause of carbon monoxide poisoning. … An improperly maintained or ventilated gas fireplace can create incomplete combustion, creating carbon monoxide, and causing this toxic gas to linger—putting those inside at risk of carbon monoxide poisoning.
When should you close the flue after a fire?
A fireplace damper should always be kept open while the fire is burning. Furthermore, keep the damper open until all the embers are done burning. Smoke and dangerous carbon monoxide can enter the house. Once the ember bed is completely out, close the damper.
Should I turn off the pilot light on my gas fireplace in the summer?
Your Utility Bill Perhaps the most important reason to turn off gas fireplace pilot light in summer is because of the money and energy you will be saving. If you leave the pilot light on during the summer it is simply sitting there burning gas, which is wasting gas and contributing to an exorbitant energy bill.
Does gas turn off when pilot goes out?
This is because all modern gas appliances with pilot lights have a fail-safe device that closes off the gas to the appliance in the case when the pilot may go out. … If the pilot light goes out for any reason, the current stops, the valve closes, thus preventing any gas from leaking.
Is it OK to leave pilot light on gas fireplace overnight?
If you leave the pilot light on for long periods without turning on the main burner, a white film can develop on the glass. This is a sulfur byproduct of the burning pilot, and if left uncleaned, it can etch the glass.
What is the purpose of glass doors on a gas fireplace?
More efficient heating Want to double the efficiency of your fireplace? Install glass doors. At first that may not seem to make sense, but the glass actually absorbs and radiates the heat into the room far better than the air itself conducts heat from the flames of an open fireplace.
How do you know if your fireplace flue is open?
• Feel for a Draft Before lighting a fire, you can tell if the damper is open by placing your hand into the fireplace. If you feel a draft coming down the chimney, it is a good indicator that the damper is open. If you don’t feel any cold air coming down the chimney, it means that the damper is closed.
Which is better ventless or vented gas fireplace?
Ventless fireplaces are more energy efficient than vented fireplaces because no heat escapes up the flue, so you’ll save money on gas utility bills. A vented gas fireplace uses more gas to create the same level of warmth because some of its heat escapes through the flue.
Will Vented gas logs heat a room?
A vented gas log must be used in a regular fireplace, designed to burn a wood fire. … Some vented gas logs will give up to 25,000 BTU’s of heat but most don’t give hardly any heat.
What is the difference between vented and ventless gas logs?
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 safely run a gas fireplace?
In short, you really shouldn’t let a gas fireplace on for too long—specifically more than three hours at a time.
Are fumes from gas fireplace harmful?
Gas fireplaces are generally considered cleaner than traditional wood-burning fireplaces, but they can also pollute indoor air quality if not properly vented. Toxic gasses emitted include deadly carbon monoxide and nitrogen dioxide — a gas particularly harmful to those with asthma.
How do you vent a gas log fireplace?
Venting horizontally—through a wall—is a simple solution, ideal in cases where a gas fireplace is being installed on an exterior wall. Venting can be as easy as running pipe from the back of the fireplace out through the wall, then installing a termination cap.
Does a gas fireplace dry out the air?
Gas fireplaces make the air dry and create moisture–that is the answer to the question. Gas fireplaces create moisture in the air, while simultaneously drying the air out. Of course, to fully understand what that means, we’ll have to dive in deeper. Let’s actually start with traditional wood-burning fireplaces.
Are vented gas fireplaces safe?
A vented gas fireplace is so safe because of the sealed combustion behind its glass. You cannot remove the glass or get access to the flames for the vented gas fireplace to function properly. This might be an advantage to those with small children or pets, but it could also be considered a negative by other people.
