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The Global Insight

Is it cheaper to run a gas fireplace or a gas furnace

Author

William Harris

Updated on April 13, 2026

A modern furnace is more efficient in turning gas into heat than a gas fireplace. This means that although a furnace costs more to run per hour than a gas fireplace, it turns more of that energy into heat and can warm a whole house rather than a single room.

Is it more efficient to use gas fireplace or furnace?

A modern furnace is more efficient in turning gas into heat than a gas fireplace. This means that although a furnace costs more to run per hour than a gas fireplace, it turns more of that energy into heat and can warm a whole house rather than a single room.

Is it cheaper to run electric fireplace or gas furnace?

The truth is that an electric fireplace will cost less to run than a gas fireplace, for many people. The key to understanding the cost to run a gas or electric fireplace is to consider how they operate. With a gas fireplace, when the flames are on, heat is being produced, whether you need heat or not.

Is it more expensive to run a gas fireplace?

On average, 100,000 BTU worth of heat costs $1.09 if you use natural gas and $3.87 if you use electricity. Gas fireplaces have about 3 times lower running costs than electric fireplaces (for the same heating output). Gas fireplaces are pretty inexpensive to run.

Is a gas fireplace an efficient way to heat a home?

Fireplace technology and energy efficiency They are easier to use, cleaner and more efficient than traditional wood-burning fireplaces. Yet, they still provide heat and, with live flames, a cozy look and feel as well. (However, gas fireplace are not an efficient way to heat a whole house.)

Does gas fireplace save money?

Gas fireplaces can reduce your yearly heating costs. … Gas fireplaces can also help you save on heating costs by providing warmth during unpredictable or “in-between” weather when it’s not cold enough for the central heat, but you still need some warmth. 3. New gas fireplaces are incredibly efficient.

Is it OK to leave the pilot light on in a 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”.

Does a gas fireplace give off heat?

A gas fireplace only produces heat when it’s on and the flames are burning, meaning that a gas fireplace can’t produce heat for your home when it has been turned off. Gas fireplaces aren’t always used primarily for heating purposes.

How much does it cost to run a gas furnace?

The average cost of residential electricity in the US was 13.30 cents per kilowatt hour in August 2019. In comparison, natural gas costs around $1.01 per therm to run. An electric furnaces cost to operate could be around $2,628 a year while a gas furnaces cost to operate would be around $1,800 a year.

What type of fireplace gives the most heat?

So the question is not so much which one emits more heat; it’s which one prevents the loss of more heat. In this regard, the gas fireplace clearly comes out on top. However, we cannot deny the greater pleasure people get from the crackling sound and wonderful aromas of a wood fireplace.

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What type of fireplace is most efficient?

When it comes to efficiency, gas fireplaces have wood-burning fireplaces and pellet fireplaces beat. The use of gas is just much more efficient than than having to burn wood or pellets, not to mention that a gas fireplace doesn’t require electricity to run.

Should you turn off fireplace pilot in summer?

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.

How much does it cost to run a pilot light on a gas fireplace?

A pilot light is a small flame that is kept lit to provide a catalyst for the main burner to be turned on when needed. The average fuel consumption of your standing Pilot light is: Natural gas is $0.60 a day = $219 a year.

Why are flames blue in gas fireplace?

You get a blue gas flame with a hydrocarbon gas when you have enough oxygen for complete combustion. When you do have sufficient oxygen, the gas flame appears blue because complete combustion creates enough energy to excite and ionize the gas molecules in the flame.

How many hours can you 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.

Do gas fireplaces use a lot of electricity?

Natural gas is a fairly inexpensive form of energy, so a gas fireplace is inexpensive to run. Gas fireplaces cost 17-19 cents an hour to run, or about $60 annually, Electric Fireplaces Direct says. … Both gas and wood-burning fireplaces lose heat up the chimney, although wood-burning fireplaces typically lose more.

How much does it cost to run a gas furnace for 1 hour?

AFUE of 90 Percent The U.S. Department of Energy requires an AFUE of at least 90 percent for residential gas furnaces to receive an ENERGY STAR rating. This means an annual gas use of 660 therms at a cost of $660, or almost 31.7 cents an hour.

Does a gas furnace run on electricity?

The question is, “does a gas furnace use electricity?” If you are using a gas furnace for heating, then the only electrical cost will be what is required to operate the fan motor and the igniter. … The electrical usage for ignition is negligible.

How much does it cost to heat a house per month?

The American Gas Association most recently said that households in the United States spent an average of $661 a year in natural gas to heat and fuel their homes. That comes out to a bit more than $55 a month.

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.

Do gas fireplaces need to be cleaned?

While gas fireplaces don’t produce creosote, they do still need annual cleaning. Both propane and natural gas are clean burning gas fuels, so they don’t produce the same byproducts as wood, but they can still produce buildup that needs to be cleaned away.

What gives off more heat wood or gas fireplace?

Generally speaking, gas fireplaces can produce anywhere from 8,000-60,000 BTUs, and wood burning fireplaces range from 20,000-40,000 BTUs. … Therefore, either type of fireplace can do the job in most cases.

How do I circulate the heat in my gas fireplace?

Place the box fan on low, facing INTO the space where your fireplace is, blowing the cool air at the unit. This will cause a convection reaction and the hot air will be forced away from the burning unit. If in a small room, the hot air will be moving out the door into larger spaces in no time.

Do gas fireplaces need a chimney?

Ventless fireplaces fueled by gas or propane rely on indoor air for combustion, and they exhaust a low level of their combustion gases into the room in which they’re located. A chimney or flue isn’t necessary. … In fact, ventless fireplaces generally are just for aesthetics and supplemental space heating.

Should I turn off the pilot light on my gas fireplace in the winter?

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.

Should the pilot light always be on in a gas heater?

Most furnaces with electronic ignition have a device called a hot surface igniter. … The difference is that the flame is only lit (by an electronic spark) when your furnace is ready for a heating cycle. When the pilot light is not needed, it is completely off, saving you money on gas.

How do I keep spiders out of my gas fireplace?

Gas fireplaces may attract spiders, too. Try to keep the pilot light on, as it keeps spiders away.

How much gas does a pilot light use per day?

Just how much gas does a pilot light consume? Most pilot lights will consume about 600 BTU’s of gas/hour. With 24 hours in a day, that’s roughly 14,400/BTU’s each day. Figuring 30 days, a pilot light will use approximately 432,000 BTU each month.

Should gas fireplace burn blue or yellow?

Healthy Flames A healthy gas flame will burn steadily with a yellow or orange. If the flame is not yellow or orange it may be a sign that your gas fireplace needs adjusting or cleaning, which should be done by a qualified technician, such as those we have at Kozy Heat.

How do I make my gas fireplace burn yellow?

By opening the damper to the fireplace, you are allowing proper ventilation. This will control the color of the flame. To adjust it so that the flames have an orange or yellow tip to them, lower the air input. You can do this by changing the damper or by closing the air shutter.

How do I make my gas fireplace flame higher?

Turn the key valve counterclockwise as far as it will turn to open the gas line. Start the fire by following your gas fireplace lighting instructions. Turn the gas control knob to high to increase the flames in your fireplace if applicable.