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Helpful Tips
GAS LOGS
Measuring Guide FAQs Fun Facts

Measuring Guide

Most fireplaces can accommodate 18 inch or 24 inch gas log sets.  Please call and we will be happy to assist in determining the proper size.  Use the diagram below to get started.

All measurements should be made from the inside surfaces or firebrick of the fireplace.  Front width (A) and depth (C) are the most important dimensions for gas log sizing.  These measurements should be taken from the fireplace floor, inside the hearth or lip of the fireplace, and behind any wire screens or railing that may be permanently attached to the fireplace.  In deeper fireplaces, front width measurements can be taken 6 to 8 inches from the front, allowing better centering below the flue opening.  Rear width (B) is rarely a critical dimension with vented gas logs, unless the rear of the fireplace is extremely narrow.  Height (D) is also rarely a problem. The goal of sizing to have the gas logs appearance to be in a nice proportion to the fireplace opening.

Vented Logs Guideline
18" Set minimum front width is 30 inch, 18 inch rear width
21" Set minimum front width is 30 inch, 21 inch rear width
24" Set minimum front width is 36 inch, 24 inch rear width
30" Set minimum front width is 42 inch, 30 inch rear width
   
Vent-Free Guideline
18" Set minimum front is 28 inch, 17 inch rear, height 17 inch
21" Set minimum front is 30 inch, 23 inch rear, height 18 inch
30" Set minimum front is 34 inch, 26 inch rear, height 20 inch
Minimum Depth for all sets is 14"
   
Vent-Free Minimum Room Size Guideline
18" Set Minimum Room Size 1,600 Cubic Feet
21" Set Minimum Room Size 1,800 Cubic Feet
30" Set Minimum Room Size 1,900 Cubic Feet

To calculate cubic feet take room length times width times height.  This is the minimum for code purposes. Vent-free logs may produce too much heat to be left on for long period of time.  Ask our representatives for more details.

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FAQs

What are gas logs?

Gas logs are a decorative appliance made to replace wood in a working, wood-burning fireplace. Generally there are two parts to a gas log set, the burner and the logs themselves.

What types of gas logs are available?
Your first decision will be whether you want to go with vented or vent-free logs.  After that, pick the logs that have the appearance you prefer.  Charred logs look like they have been burning for awhile. Fresh-cut logs resemble logs that were recently placed on the grate.

Vented gas logs operate with the damper open and have the most realistic flame pattern.  Although there is some radiant heating and warmth that comes from vented logs, the heat provided is minimal. The visual appeal of vented gas logs can be spectacular.  Flames dance high and glowing embers add to the beauty.  Laclede adheres to very stringent safety standards and only sells CSA-approved vented gas logs. We are the only retailer in the area to exclusively sell CSA logs.  CSA gas logs are the safest vented gas logs you can buy.

Vent-free gas logs can operate with the damper open or closed.  If operated in the damper closed position, vent-free logs add heat to the room.  The safety of this type of gas log set is ensured by an oxygen depletion sensor built in to the pilot.  If there is inadequate oxygen in the room, the gas logs automatically turn off.  Vent-free logs have a limitation on the Btu input that means the flame is a smaller than vented logs.

Do vent-free logs have an odor?
When operated with the damper closed, vent-free logs have an odor during the break-in period.  The break-in period lasts about 10 hours of burn time.  We recommend the damper be left open during this period or that a window be opened.  Once the break-in period is complete, there is very little noticeable odor coming from the logs.  Keep in mind, however, that any open flame in a home can create an odor.  For example, burned paint thinner fumes create a very annoying odor.

How much do gas logs cost to operate?
This varies with the Btu rating of the logs.  Vent-free logs used in heating mode can actually displace heat provided by your furnace, lowering your overall heating cost.  A 50,000 Btu gas log uses 1/2 of a Therm per hour.  Using November 2005 rates, the gas cost is about 60 cents per hour.  

Do you sell logs without installation?
Yes.  We also sell propane gas logs and can ship any where. Check with your local code official regarding the rules in your area.

Can I install vent-free gas logs in a non-working fireplace?
No.  But a vent-free firebox may fit allowing you to have logs in what becomes a mini-fireplace system.  Call our representatives for more details.

Where do you run the gas line?
Every job is different.  On some homes, the line is run through the ash pit in the floor of the hearth.  It's also common to drill through the back of the hearth, where the gas line enters from outside.  Drilling through the floor of the hearth is not allowed.  If you live in St. Louis or St. Charles, we can conduct a feasibility inspection for a nominal fee.

Who installs the gas logs?
We offer professional installation through our distributor.

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Fun Facts

Gas logs are designed by artisans who start by molding the logs from real trees.

In 2004, gas log sales exceeded 2,000,000 units for the first time.

Some electric fireplaces actually simulate a fire by playing a DVD movie projecting the image on to a screen.
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