Is it OK to leave pilot light on?

Author: Mrs. Carmela Kshlerin  |  Last update: Thursday, May 14, 2026

Safety. One of the main concerns about leaving the pilot light on during summer is the risk of carbon monoxide poisoning. Carbon monoxide is a colorless, odorless gas that can be deadly if inhaled in high concentrations. The pilot light can produce carbon monoxide even when no fire is burning in the fireplace.

Is it better to leave a pilot light on or turn it off?

turning off the pilot not only saves gas but prolongs the life of your furnace. during the summer that pilot flame will condense the moisture in the air and rust out the heat exchanger. turning off the gas supply will do the trick.

What happens if you leave the pilot light on?

A: Yes, it's generally safe to leave the pilot light on in your gas fireplace. This small flame is designed to stay lit all the time. Q: What are the benefits of leaving the pilot light on? A: Keeping the pilot light on can prevent the build-up of moisture in the fireplace, which can lead to corrosion over time.

Should the pilot light be on all the time?

Your boiler pilot light is a very important part of your boiler. The pilot light or flame needs to be lit all the time to make sure that your boiler can produce hot water for your taps and central heating as and when it is needed.

Is it expensive to leave pilot light on?

A fireplace pilot light might consume about 24,000 BTU per day, adding up to about 720,000 BTU a month, or 7.2 therms. If you're paying $1 per therm, then leaving the pilot light on all the time throughout a month might cost you around $7 per month and $84 per year.

Can You Keep Your Pilot Light Burning All Year Long?

Does turning off the pilot light save money?

Additionally, an active pilot light can create moisture, which may collect inside the pipes and cause corrosion. Turning off your pilot light is a simple process that will save you both energy and money.

Can pilot light cause carbon monoxide?

Pilot lights can be a source of carbon monoxide because the by-products of combustion are released inside the home rather than vented to the outside. Gas ovens and ranges should be monitored closely and kept in good working order.

Can a pilot light go on and off?

It shouldn't be able to re-light itself. It should have a bi-metal strip which prevents gas being delivered unless the pilot has heated the strip to sustain it on. If the pilot goes out regularly then the pilot flame is either being blown out or the bi-metal strip is faulty.

Do pilot lights waste a lot of gas?

How much gas does a pilot light require? Most pilot lights consume around 600 BTUs of gas every hour. If you leave your pilot light on for an entire day, it would roughly consume 14,400 BTU's every day.

Is it safe to have pilot light out?

Having the pilot light turn off is not automatically cause for panic. If it goes out, follow your manufacturer's instructions and determine whether relighting it is safe. If relighting is not safe, or if your pilot light keeps going out, call for help from a trained technician.

Should I turn off my gas pilot light when not in use?

Save Energy and Money – Don't Leave Your Pilot Light Always On. As the weather gets warmer, you will be using your gas fireplace less and less. Turning off your gas fireplace seasonally can save you a substantial amount of energy and money.

Can I relight the pilot light by myself?

The Short Answer Is: It is generally safe for a homeowner to relight a furnace pilot light, as long as they follow proper precautions and guidelines. To do it yourself, first, turn off the furnace's gas supply and wait for a few minutes to allow any lingering gas to dissipate.

Should I leave my pilot light on year round?

It's common for spiders to build webs in burner tubes and pilot assemblies. The webs can obstruct the gas flow and cause the fireplace to malfunction. Some homeowners prefer to leave the pilot light on year-round to avoid this problem. It's easier to turn the pilot light off than to turn it back on.

What happens if you leave pilot light on?

Generally, leaving the pilot light on is safe, and you may decide to do this for a few reasons. For example, you want to use your outdoor fireplace on those cooler summer evenings. The pilot flame can also help prevent spiders from building webs in your fireplace, insert, or stove.

Is pilot light necessary?

Originally a pilot light was kept permanently alight, but this wastes gas. Now it is more common to light a burner electrically, but gas pilot lights are still used when a high energy ignition source is necessary, as in when lighting a large burner.

What are the benefits of a pilot light?

The Pros are that the pilot light will keep moisture and bugs and small critters out of the unit. Cons, cost of fuel and heat which is small.

How much does it cost to leave a pilot light on?

Then look at your gas bill and find out what you pay per Therm. Usually, it is $1 and change. So your pilot can be costing you $7 to $10 per month.

Will gas leak if pilot light goes out?

If the pilot should go out, gas is immediately shut off to the main burner, however, there is still a small amount of gas that will continue to flow to the oven pilot. All free standing pilots are approved by the American Gas Association. There is not enough leakage to create a hazard.

What are the dangers of lighting pilot light?

In fact, Nationwide Insurance cites extinguished pilot lights as one of the top fire hazards in your home. Since a cigarette lighter or even just static electricity could be enough to cause a fire or an explosion in your home, it's worth repeating: don't try to relight your pilot light.

Does the pilot light need to be on all the time?

The short answer is – you do not need to turn off your pilot light, and there is little risk in leaving it on all summer. Leaving it on is the simpler way to go. But, if you want to turn it off, you can, and there's no harm in that either.

Will a furnace run without a pilot light?

Newer gas furnaces (since about 2010) do not have a traditional pilot light that burns all the time. Instead they use electronic ignition systems that light only as needed. Constant flame or “standing pilot” heating systems are still fairly common in older homes, and they can still be repaired in most cases.

Who to call to relight a pilot light?

Call Your Local Mr. Rooter Plumber! If you are having trouble getting your water heater pilot light on, or you can't get it to stay lit for long, rely on a plumbing professional for water heater repair, maintenance, and replacement services.

How do I know if my gas fire is leaking carbon monoxide?

Signs of a carbon monoxide leak in your house or home

Sooty or brownish-yellow stains around the leaking appliance. Stale, stuffy, or smelly air, like the smell of something burning or overheating. Soot, smoke, fumes, or back-draft in the house from a chimney, fireplace, or other fuel burning equipment.

Is it normal to smell a pilot light?

Pilot Light Issues: If the pilot light is not burning efficiently or has gone out, it can result in the release of a small amount of gas, leading to a faint odor.

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

You can save gas and conserve energy by switching off the pilot light during summer. There is continuous use of gas to keep the pilot light on—turning it off will help save energy. While it may not be a significant drop in your energy or gas bill, remember, every dollar counts.

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