Should flue be open or closed with gas fireplace?

Glass doors should be closed, as for the flue, it would depend if it were a vented or ventless gas fireplace. Glass doors should be closed, as for the flue, it would depend if it were a vented or ventless gas fireplace.

Likewise, can I keep flue closed with gas fireplace?

Because gas-log fires produce copious amounts of carbon monoxide, they have to vent outside in a fail-safe manner. That’s why there is, or should be, a keep-open device attached to the damper in gas-log fireplaces. Do not close a fireplace damper until the fire is completely out.

Similarly, can you close the damper when pilot is on 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.

In this regard, should the damper be open or closed on a gas fireplace?

You need to leave your chimney’s damper partially open to vent the carbon monoxide that the gas fire produces, so much of the heat generated by a vented gas log set goes up the chimney.

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, however, can result in incomplete combustion, creating carbon monoxide, and causing this toxic gas to linger—putting those inside at risk of carbon monoxide poisoning.

17 Related Question Answers Found

How long can you leave your gas fireplace on?

In most cases, if your fireplace was installed properly, you can leave it on indefinitely. There is no time limit built into the safety requirements for vented gas fireplaces. Gas fireplaces literally run for days when being safety tested.

When should you close a flue?

Close the flue damper when there is no fire. When you’re fire is out or during seasons that you don’t have fires, keep the flue damper shut to prevent heat or cooling loss.

Is a damper and flue the same thing?

Every Fireplace has a chimney damper. This is a movable plate that sits above the fireplace before the flue. If you pull the lever toward you, generally that will open most of the dampers. The flue, also known as the chimney lining, is basically a pipe up the middle of the chimney.

Do gas fireplaces use a lot of gas?

A typical gas fireplace consumes 30k to 40k BTUs of gas per hour set on “high”, but you can look on the data tag in the bottom of your fireplace to know exactly what yours is rated for. Natural gas is normally billed per therm.

What is the difference between a vented and unvented gas fireplace?

Vented gas logs burn like a real wood fire with a yellow flame that produces smoke. They must be burned in a wood burning fireplace with the damper open, so smoke goes up the flue along with most of the heat. Ventless (vent-free) gas logs burn cleanly with a lower flame that does not smoke.

Should I keep my fireplace pilot light on?

Leaving the gas on keeps this compound moving out of the tubes. Keeping the pilot light on will also keep moisture out of the unit and in turn, help prevent corrosion. As you can see, it’s probably best in most cases to extinguish the pilot light in your gas fireplace during the months when you don’t need heat.

Do gas logs heat a room?

Vent-free gas logs are an inexpensive and efficient way to add extra heat to a room without having to open the damper on your fireplace. These logs use the air from within the room for combustion and then put heat back out into the room. In most cases, vent-free gas logs cannot be used in conjunction with a blower.

How do you tell if my gas fireplace is vented?

How to Tell If Your Gas Logs Are Vent-Free Inspect the logs. All vent-free logs are firmly attached to a U-shaped burner and cannot be moved. 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. Turn on the fireplace.

How do I know if my damper is open or closed?

Perform a visual check. Using a flashlight, poke your head inside the fireplace to look up into the chimney. If you have a throat damper, you can tell if it is closed if you see a barrier above your head. If you can see up into the flue, the damper is open.

When should you close the fireplace doors?

Glass doors should be fully open when starting a fire and when the fire is burning strongly. 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.

Is vented or ventless fireplace better?

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.

Does a gas fireplace need to be vented?

Vent Free Fireplaces ARE Secure As you know by now, a Vent Free Gas Fireplace is a system that doesn’t need venting to operate. For this reason, they are made to burn clean and allow the combustion by-product to flow into the room the fireplace is in.

How do I stop my gas fireplace from getting cold air?

You can stuff fiberglass or foil tape insulation in the hole to prevent the cold air from coming in there. 2) Check to make sure that your glass is clamped on tight by all clamps or screws. You would need to remove the front on the fireplace and look top & bottom, at all corners of the fireplace.

Should glass doors be closed on gas fireplace?

The doors should always be fully open or fully closed. Glass doors should be fully open when starting a fire and when the fire is burning strongly. The glass doors should be closed as the fire dies down to minimize the amount of room air going up the fireplace chimney.

Do you leave the glass doors open on a gas fireplace?

Gas fireplaces aren’t a solution for a problem chimney. You can reduce drafts and heat loss by installing glass doors in front of the gas fireplace, but the doors must remain open while the fire is burning.

Is it safe to leave a fire burning overnight?

Never leave your burning fireplace unattended. It is important to extinguish the fire before going to bed or leaving the house, and imperative that you allow ashes to cool fully before you dispose them, and best to leave them in your fireplace until the following morning if you’ve enjoyed a fire the night before.

How do you adjust the pilot light on a gas fireplace?

On some fireplaces, there will be a “Lo-Hi” button that allows you to adjust the flame upward or downward. On others, there will be a screw that you can easily adjust with a screwdriver. Turning the screw clockwise will lower the flame, while a counterclockwise motion will turn it up.

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