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Ceramic Gas Logs

Important Note: What you are about to read on this page is information about ceramic gas logs that were made by Glo Fire. Unfortunately, this company is no longer in business, so this type of log is no longer made in the United States. We have kept this information on our site because a lot of people are still searching online for ceramic gas logs and wanted to help you realize that they are no longer available, while still preserving their history.

The next best thing to what was formerly "Kiln Fired Ceramic" when it comes to gas logs is called "Refractory Ceramic", which is made in a completely different process that is much more affordable and ultimately produces a gas log with similar characteristics. Refractory Ceramic basically takes kiln fired clay in a powder format and uses it to make refractory cement which can then be poured into rubber molds. This process allows the manufacturer much greater flexibility in creating substantially more realistic appearing an unlimited variety of shapes and sizes. It also allows for much better coloration of the logs with hand painted highlights and details. The end result is a superior product that looks better and performs in a similar way. Because Glo-Fire had to compete with this newer technology, their product became antiquated and far too expensive to manufacturer, which lead to the ultimate demise of their product.

Here is the ceramic gas log story in it's entirety as it was previously published on our site before Glo Fire went out of business:

The Ceramic Gas Log Story

There is only one gas log manufacturer in the US that still makes "100% Kiln Dried" ceramic gas logs. That company is Glo Fire, and this is their story.

"To understand the advantage of using ceramic for making gas logs, it is important to know clays and their composition. Throughout history clay has proven to be one of the most durable materials known to man.

There are many different clays, each with specific properties. Glo Fire has chosen a blend of two clays. the first for it's low thermal expansion. This means that during the process of drying and vetrification, when expansion and contraction takes place, this clay creates a low drying shrinkage and consequently eliminates most cracking.

The second clay has been selected for its binding qualities and its plasticity, which aids in the extrusion and molding of the logs. By carefully selecting, grinding and mining the clay, we have developed a clay that will withstand tremendous thermal shocks and heat without the use of wire or steel reinforcing. The temperatures in excess of 2100 degrees that ceramic logs can withstand would destroy cement!

The plasticity of the clay allows for individuality in the art work of each log depending upon the interpretation of the artist. After molding, the logs are placed on racks and air-dried. This slow "dry" helps cure the ceramic log which is later placed in forced-air ovens to further prepare the logs for the kiln. After molding and drying, each log is painted with our special formula that must withstand the same 2200 degree temperature as the log.

From here, each log is place on a car where it takes a 60-hour trip through our 150 foot tunnel kiln. The logs are first preheated, then fired, and finally cooled. Our final step before packing is to burn charred oak ash onto the logs. This process ensures they will glow in your fireplace. By combining extensive research with special clays and other materials, we have created a ceramic log that has unsurpassed beauty and durability. That is why we can say confidently that Glo Fire gas logs are unconditionally guaranteed against destruction by fire and that they will not disintegrate under intense heat and temperature.

We hope that our "Gas Log Story" has helped you to understand a little of the behind the scenes operation that enable us to produce the ultimate in gas logs."

Editors note: The above story was told by the humble folks at Glo Fire who manufacture these wonderful ceramic logs. I must add a personal note from my own experience:

"After being in the fireplace business for over 15 years, we have become one of the largest independent gas log dealers in the United States. We have sold and still do sell many other brands of gas logs. I personally was an installer for several years and put well over 1000 gas logs into our customers homes, many of which were not ceramic. From my experience, the ceramic logs made by Glo Fire are by all means the best logs you can buy if you are interested in heat, durability, and realism.

Not only do they put out substantially more heat than other gas logs, they also get "RED HOT" and glow to a much greater degree than logs that are made of refractory cement. This gives them the look and feel of a real wood fire. Keep in mind that all other logs are either made of plain ordinary cement, or a higher grade refractory cement that may be mixed with clay and other materials, but they are never "kiln" dried.

Don't get me wrong, some of these other logs are quite durable and very realistic in appearance. Even Glo Fire manufactures a line of refractory logs. You'll see examples of some of these other logs here on our site. However, it's the kiln drying process that makes Glo Fire's ceramic logs so special.

You see, since the kiln dried logs can withstand temperatures in excess of 2200 degrees, Glo Fire is able to use a much higher BTU burner that puts out nearly twice as much flame and heat than other logs. Since you get more flame and heat, there is an extra added value and lot more realism that only Glo Fire ceramic logs can create".

Thanks for reading these comments. I hope they have been of some help.

Greg Tillotson
Hansen Wholesale

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Answers to Recent Gas Logs Questions Posted To This Page
  1. Question #9527 - Posted: 2/2/2017 8:52:54 PM

    Gas Logs Question Model PL-CHCRG46-30-17P

    QUESTION: 1. How large in diameter will the vent hose need to be for this type of unit?...Thanks, Frank

    ANSWER: I am assuming that you are referring to the size of the chimney. This gas log is designed to be installed in an existing wood burning fireplace that is capable of burning wood. If you do not already have a wood burning fireplace, then you cannot install this gas log without one. With that said, the minimum required vent depends on the height of the chimney. Please refer to this chart copied from the installation manual for specifics:

  2. Question #9526 - Posted: 12/29/2016 9:05:21 PM

    Gas Logs Question

    QUESTION: I have a gas burning fireplace with a broken log. It was originally a wood-burning fireplace built in the early 1960s. It has a damper which is always open when burning. The fireplace was converted professionally to gas sometime before 2000. I converted it to remote-control lighting in 2010 using a reputable firm. Sometime later, one of the logs was dropped and cracked in half. It is held together by internal wires. I would like to replace one log rather than the entire set. Possible?

    ANSWER: It is possible, but that depends on the type of gas log set you have. If you can email us a picture of your gas logs, maybe we can find what you need. Email pictures to:

  3. Question #9525 - Posted: 12/29/2016 8:58:26 PM

    Gas Logs Question

    QUESTION: I have a classic fireplace 26" in the back, 36" in the front and 26" depth. I live in a two story house built in 1935. The furnace broke and needs to be replaced. I'm looking for something to install in my fireplace to warm up the living room. I live in California so it has to be vented. What do you recommend to keep my room the warmest it can be? log set or would an insert be better?

    ANSWER: A vented gas log is not going to provide very much warmth for your room. Since you cannot install a ventless gas log in California, you are left with the option of installing a gas insert. I would suggest taking a look at the Real Fyre Direct Vent gas insert.

  4. Question #9524 - Posted: 12/29/2016 8:51:36 PM

    Gas Logs Question

    QUESTION: i live in a 100 year old house and my fireplace was for coal and has a metal firebox. i have burned wood in it until last year, until we realized there was some leakage of smoke from the chimney upstairs. Would it be safe to use vented gas logs? Would we need to line the chimney like we would need to if we continued burning wood?

    ANSWER: Burning a vented gas log produces smoke just like burning real wood, so yes, you would have to reline or repair the chimney. I would suggest considering a ventless gas log so do not have to worry about smoke.

  5. Question #9523 - Posted: 12/29/2016 8:45:42 PM

    Gas Logs Question

    QUESTION: what size and kind can I put in a woodstove "MORE HEAT" that has a door 20 BY 8.5 FIREBOX 28 BY 18 AND IS 12 INCHE DEEP and will they warm the stove enough to product heat with the fan.

    ANSWER: Unfortunately, you cannot install gas logs in a wood stove. Wood stoves are designed to operate with much lower draft than gas logs and the venting does not meet the minimum venting diameter. Even more, air tight wood stoves are designed to be burned with the doors closed, which is a definite no no when it comes to burning gas logs since they must be burned with the doors opened. There are other reasons why gas logs will not work in a stove, but I will not belabor that here. For more details, read more about Where Gas Logs Can Be Installed.

  6. Question #9522 - Posted: 12/29/2016 7:59:50 PM

    Gas Logs Question

    QUESTION: I have a 24" peterson gas log set. The gas line in the fireplace is slightly larger than the connection for flex tube that leads to the gas burner. Can I add a smaller fitting to attach to the line leading to the burner?

    ANSWER: That should not be a problem unless the incoming gas pressure is higher than allowed by the installation manual, so you may want to check that.

  7. Question #9521 - Posted: 12/29/2016 7:53:16 PM

    Gas Logs Question

    QUESTION: I occasionally turn our ceiling fan on low with the blades drawing the air upward while using our ventless gas logs. Our installation manual says a ceiling fan should not be used when the ventless logs are on. The flame of the gass logs appears to be unaffected. Is there a problem in having a ceiling fan on at the same time as the ventless gas logs? Thank you.

    ANSWER: Running a ceiling fan to destratify the air in your room makes sense from a heating efficiency/conservation standpoint, so I understand why you are asking your question. The responsible answer is that the owners manual says not to run your fan when you are operating your ventless gas log, so we cannot tell you that it is OK to do so. With that said, drafts can certainly cause ventless gas logs to NOT burn correctly and start producing toxic odorless Carbon Monoxide. It is safer for the manufacturer to tell you not to run your fan at all in order to avoid a potentially hazardous outcome rather than suggest that you can run it on a low speed in reverse with no ill effect. They cannot test the actual impact of doing so in your particular room. Their ultimate concern is to prevent any draft from affecting the flame. Whether you decide to follow the instructions is ultimately your decision...I will leave it at that.

  8. Question #9520 - Posted: 12/29/2016 7:31:40 PM

    Gas Logs Question

    QUESTION: I do not really need the heat, and I have a fireplace already,but, the damper is either all the way open or completely closed. can I get that fixed so i can have it open part of the way so all the hot air does not go up the chimney thereby kind of making it silly to have one

    ANSWER: Technically, a vented gas log is supposed to be burned with the damper completely open. Plus, you cannot ever completely close the damper just in case there is a gas leak, so there is a clamp that is included with the burner system that gets attached to the damper to prevent it from ever closing completely. So if you do not really need the heat, then the way your damper operates is sufficient for a vented gas log. Whether you close the damper slightly to preserve some of the heat will not make much difference, you will get most of the heat from a vented gas log radiated into the room from the ceramic in the logs themselves. If you are really concerned about getting heat (which you say you are not), then you should consider buying a ventless gas log.

  9. Question #9519 - Posted: 12/29/2016 7:02:36 PM

    Gas Logs Question

    QUESTION: Question - Are there burners or logs that are better for use with propane to achieve the best flame presentation? Currently my propane flame in my FP is not as robust as I would like. Just curious if there are options that are better for propane specifically.

    ANSWER: Whether you are burning natural gas or liquid propane, each type of burner is configured for optimal performance for the gas you are using. So you would need to make sure you order a burner system for Propane gas, otherwise it will not perform properly. With that said, if you want the most robust flame, we would recommend either the G4 or G45 burners since they operate at the highest BTU (the most flame). However, neither of these may not be the best choice for your particular fireplace depending on the type of fireplace you have and the dimensions. Please send us some pictures of your current setup so we can see what you have and make further recommendations. Email pictures to:

  10. Question #9518 - Posted: 12/29/2016 6:53:51 PM

    Gas Logs Question

    QUESTION: Where do I find a remote control for my gas logs? And how much?

    ANSWER: Gas log remote controls are not universal in design. They are made as a transmitter and receiver combination, the receiver usually a built-in component of the gas log valve and burner system. So if you have an existing gas log with a remote and you are looking to replace a remote that is no longer working, you are going to need to contact the manufacturer of the gas log system you own and see if they can supply you with a replacement remote. If you are wanting to add a remote control to an existing gas log, that is a different story. In most cases, you will need to replace the entire burner system with one that is remote capable. Replacing the burner system may also require you to replace the logs since not all logs are compatible with all burners. If you email us some pictures of your fireplace we may be able to offer more direct advice. Send your pictures to: just give us a call at: 1-800-201-1193.

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