How Much Does A Gas Log Fireplace Cost?

Common Range: $590 – $3,490 Installed

National Average: $1,925, Installed

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Updated: October 28, 2022, by: Steve Hansen

Cost Range for a Gas Log Fireplace

You can expect to pay between $590 to $3,490 for most gas log fireplace installations. On the low end, DIY is common when a gas line is already in place or you are replacing an existing set of gas logs. For high end gas fireplace logs, the cost can go up to as high as $3,100 or more.

When hiring a local contractor to do the job, expect them to provide advice on the type of logs (vented or non-vented logs) that best suit your home and chimney requirements. Once the logs are chosen the contractor will likely clean your chimney and may install a stainless chimney liner if required.

Note: This page is about installing a set of gas logs into your existing fireplace. It does not cover costs for adding a free-standing gas fireplace, or the installation of a gas fireplace insert with fans, a separate box, etc.

Average Cost

Average Do It Yourself Cost
$450
Average Contractor Installed Cost
$1,925
Typical Cost Range
$590 – $3,490

gas log fireplace cost comparison

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Overview of Fireplace Gas Logs

Gas logs are a staple of new homes, in favor of the older wood burning fireplaces. While some homeowners may prefer the smell and appearance of a traditional wood fireplace, gas fireplace logs are much easier to light, cleaner to run, can provide more heat to your home, and depending on your budget, can look almost as real as their counterpart. While pellet stoves and electric fireplaces are also common, nothing reaches the popularity of gas logs for the look and heat they provide.

This page of Costimates is going to help you learn more about the features and accessories that will affect gas log retail prices and installation costs. By the time you’re done reading, you’ll have a good understanding of gas logs, the cost variable from vented and unvented, accessories that will add to your bottom line cost, as well as factors within your home that will help you estimate installation cost in your area. Finally, you’ll get our opinion on DIY installation, as well as a comparison of purchase an installation costs from other leading sources on the web.

Gas Log Fireplace Retail Cost Factors

The following features and factors will help you understand why some gas fireplace logs cost more than others. Once you understand the features and how they affect the cost, you can decide if you want them or not.

  • Vented of Vent-Free – As this feature suggests, some units require you to keep the chimney flue open so they can vent out of your chimney. Vent free heating systems do not require your chimney to be opened and emit no dangerous gases to your home. Vented logs do provide some heat to your home and look more realistic, but non-vented logs provide 100% of the heat, making them higher efficiency. In addition, the latest logs on the market look just as real as vented versions.
  • BTU Heat Output – Both style of logs are rated in BTU’s, for the amount of heat they give out. You can expect a range of 20,000 btu to 60,000 btu. A vent-free set with 20,000 btus can heat an area of about 800-1000 square feet, operating at 100% efficiency. The same gas logs in the vented version would only heat 200 square feet.
  • Appearance – Likely the most important factor for anyone buying a set of gas logs, is the appearance. Many lower-cost sets simply look like a set of fake logs with a gas flame. The more expensive ones look as close to realistic as possible with multiple burners for both the logs and embers that glow beneath.
  • Comfort Features – There are many features available for gas log fireplaces. From wireless remote controls to fireplace inserts that have blowers installed, and can distribute heat to larger areas of your home.

Retail Cost Range

  • $100 – $275 – Vented fireplace logs with very few accessories and a heat output of 20,000 – 60,000 btu.
  • $150 – $425 – Basic, vent-free gas logs with a few accessories and a heat output of 20,000 – 30,000 btu.
  • $475 – $1,500 – Feature-rich set of vent-free gas logs with remote control, hand-painted realistic logs and flame burners, heat output of 20,000 – 40,000 btu. While this won’t replace a gas furnace for heating your home, it does work well in emergency situations when heat is needed.
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Parts and Supplies Cost Details

Unless you’re replacing an existing set, there will be some preparation work and installation supplies needed before you can install a set of gas logs into your existing fireplace.

  • $25 – $50 per foot | Solid or flexible gas line run to the fireplace, including shut off valve(s). This will vary depending on the type and diameter of line needed to provide gas to the gas fireplace.
  • $40 – $100 | Regardless of which logs you install, it’s highly recommended that you install a Carbon Monoxide detector.
  • $140 – $260 |  Before installing any new appliance into your fireplace, it’s important to have it inspected and/or cleaned to assure proper safety.
  • $15 – $30 | Miscellaneous supplies like touch up paint, Teflon tape, pipe dope for gas fittings, etc.
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Permits, Inspection, and Installation Costs

Permit and/or Inspection Costs

Installation usually requires an inspection for safety. Along with the gas line bringing fuel to the log set, venting and other factors will be inspected. If your set requires electricity, an electrical inspection may be required as well. Talk to your installer to determine if this project will require a permit or inspection.

  • $50 – $200 ea. | Local permits (if required). You will likely require electrical, mechanical and plumbing inspections.

Installation Labor Factors

The cost of installation for your gas log fireplace will be determined by several factors.

  • Gas Supply Line – If there is no gas line at your fireplace, a new line will need to be installed by a plumber. The cost the gas line will depend on the btu rating, or heating capacity of the unit, as well as the distance from where the plumber has to tap into the existing line to your new gas logs.
    Note: If you don’t have natural gas in your home, a propane bottle can be installed as conveniently as possible to your fireplace.
  • Electrical Installation – Some gas log sets as well as high end fire box inserts may require electricity in order to run. If you need electrical run to your fireplace, the cost will be determined by the distance from the nearest outlet that will support the added requirements. If a new line is run from the circuit panel, a new breaker and other costs will factor in as well.
  • Condition of Fireplace and Firebox – If you’re having vented logs installed you may need to have the fireplace cleaned, or in cases where the flue liner is in very poor condition, a chimney liner installed.

Installation Time

  • 2 – 8 Hours | Even if a new gas line or electric source has to be installed, most pros will complete the install within 1 day. If an inspection is required, the plumber and/or electrician may need to be present during the inspection. This usually occurs at a later date.
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Installing a set of gas logs is a fairly quick and easy project. Listed below are several other projects related to having a set of gas logs installed at your home.


Are You a Plumber or Pro Gas Log Installer?

If so, head over to our Costimates Pro’s page, and help us make this page better and more accurate for both our visitors and your future customers.

DIY or Hire a Pro

If you already have a set of gas logs in place, this is easily a DIY project that most handy homeowners can accomplish in just a few hours. If gas or electric lines need to be run to the fireplace, I would suggest hiring a pro to handle at least that portion of the project.

Regardless of which route you take, natural gas and fire are two very serious things to consider, since a faulty installation or preparations can both result in death. Even if you install your own set, you should call in a pro and pay the service call fee to inspect your work and assure you’ve done it right.

  • If you’re buying your own set from a big box store, make sure you purchase the right kind for your fireplace, as well as the right size for the firebox. Learn more about buying the right logs at North line Express.
  • I suggest talking to a local pro before buying any set of logs. Not only do you need to know if your gas line can accommodate the new gas logs, many dealers get better pricing on higher quality sets than you find in stores.

I have installed my own logs many times, as both replacement sets and new installation. I’ve always used a pro for running the gas and/or electrical lines, as well as the initial startup and leak testing! In this case… I’m going to suggest using a Pro, since you really can DIY and use a pro on one project!

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Compare Costs from Leading Resources


Common Questions and Answers

What is the difference between gas logs and a gas log insert?

Gas logs are designed to use your existing firebox and vent flue, simply replacing the wood burning aspect of your fireplace. Gas log Inserts are larger, have more features, and are designed to be installed directly inside the entire firebox.


Reviewed and Edited by Steve Hansen of Costimates

steve hansen of costimates-sm Steve Hansen is the Lead Editor of Costimates. (Learn more) An avid home improvement professional with more than 35 years experience in both DIY projects and working as a construction foreman in residential new home building, upfits, repairs and remodeling.

"Like most homeowners, I became frustrated with the lack of quality information available on specific home improvement repairs and renovations. In 2015, Costimates was formed to help homeowners learn as much as possible about various projects and their costs so they could make better financial decisions."