Why Gas Fireplace Smells Like Gas? Here’s our 2023 Detailed Guide

A gas fireplace is a clean, safe, and cost-effective heating option for homeowners, but what if a gas fireplace smells like gas?

If it smells like gas, it is important to address the issue immediately as it could indicate a gas leak. Gas leaks can be dangerous and potentially explosive, so it is important to take the appropriate steps to ensure the safety of your home and loved ones.

The first step is to turn off the gas supply to the fireplace and contact a qualified professional to inspect and repair the issue. In the meantime, do not use the fireplace or any other gas-powered appliances; ventilate the area to dissipate any gas fumes.

This WarmthPedia article will answer all your questions. The advantages of utilizing a gas fireplace and the reasons why a gas fireplace smells like gas are all provided by this WarmthPedia article.

Benefits of Natural Gas Fireplace

Benefits of Natural Gas Fireplace

Natural gas is a common heating fuel since it’s both affordable and efficient. WarmthPedia has collected some advantages of using your home’s natural gas fireplace:

1. It’s much safer than using logs and a real fireplace.

2. Your home is not exposed to any fumes.

3. If you have small children or pets, natural gas fireplaces are safer than open fires because the gas covering keeps them contained.

4. There aren’t any sparks that could potentially harm you or damage your house.

5. It’s easy to use natural gas fireplaces and there’s no need to bring in outdoor wood. Turn it on to enjoy a cozy house.

6. Using a gas fireplace can actually lower your heating expenses.

Why Gas Fireplace Smells Like Gas?

New gas fireplace logs typically have a bad odor during the break-in stage. This will fade within the first 3 to 4 hours of use and is not harmful. WarmthPedia explained why gas fireplace smells like gas:

1. When a gas fireplace is turned on for the first time, it usually has a smell. If you smell gas within your home, you should exercise caution because gas leaks can be deadly.

However, much like it’s normal to notice a burning smell the first time you turn on a gas fireplace. You can keep checking it during the first few minutes after starting the fireplace.

If the smell only comes when the fireplace is burning and fades in ten minutes or less, it’s not an issue.

2. Gas odors are unpleasant, despite the fact that they are not always dangerous. If the airflow around is optimized, the gas might fade faster.

Even though many gas fireplaces don’t have chimneys, they still need a vent system to release fumes outside rather than within the house. Homeowners may want to think about having the fireplace inspected regularly to ensure that the vents are clear and functioning properly.

It’s likely that the air filters need to be changed if there is no leak but the house still smells like gas. Maintaining and regularly cleaning the HVAC system is a good idea to enhance the quality of the air in the house.

3. A propane gas fireplace can produce odors that are comparable to those of gas. Any odors that are already there can become heavier in the presence of a gas flame. Impurities in the air may mix with oxygen, which fuels the fire.

The odor will become much more noticeable when those impurities come into contact with the fireplace’s flames. Additionally, the fireplace commonly becomes clogged with dust and other debris during the off-season.

When the fireplace is lighted and the dust starts to burn, homeowners could detect an odor similar to burnt hair. By selecting an air purifier or by changing the HVAC system filters, you can reduce the bad odor in your house.

4. If your new, contemporary gas fireplace is being used for the first time, you might smell a weird odor coming from it. This is normal and should dissipate shortly after.

Allowing your fireplace to burn for a few hours will help remove any type of debris. Then, wait until it is ready to light again after it’s completely cool.

If the smell persists, or if you suspect a leak, you should call a qualified technician to check the situation, and inspect and repair the fireplace.

Additional Factors

The following are additional factors that could lead to gas fireplace odors that linger longer:

1. Dust, pet dander, or hair

2. Cigarette smoke

3. String chemical cleaning agents

4. New furniture off-gassing

5. Wet paint

6. Scented candles

Check out this video below explaining why a gas fireplace smells like gas.

When Is It an Emergency?

If you notice a gas fireplace smells like gas, take it seriously. The following emergency situations require force you to leave your house as soon as you notice them:

– A plumping assembly gas leak.

– Backflow of exhaust into the house.

It is considered an emergency if you smell gas from your fireplace and suspect a gas leak. In this situation, you should immediately evacuate your home and call the gas company or emergency services.

Do not turn any lights or appliances on or off, and do not use your phone or any other electronic devices near the suspected leak. This is because any spark from these devices could potentially ignite the gas and cause an explosion.


Although gas fireplaces are safer than wood-burning fireplaces, they still require regular Maintainance and safety precautions to prevent causing gas fireplace smells like gas.

Have you ever smelled gas coming from your gas fireplace? You can share your experience in the WarmthPedia comments box below, we’d like to hear!

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