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In what states can Vent Free Gas Logs be installed?

Quick Answer: Most states except for California and New Mexico allow installation of vent free gas logs. Califoria does not allow any ventless gas logs or heaters inside the home. New Mexico allows vent free appliances to run off of Liquid Propane but not natural gas. Some other states have localized restrictions various cities and municipalities. So even if the State says it is OK to burn ventless gas logs, your local building department may not approve of them. It is your responsibility to contact your local building official to ask if vent-free gas logs are allowed. The map below references the status of building codes adopted by the different states that directly affect whether or not vent free appliances are accepted by the state, but does not take into account local codes.

Code Abbreviation Definitions

ICC = International Code Council
IMC = International Mechanical Code
UMC = Uniform Mechanical Code
IFGC = International Fuel Gas Code
IECC = International Energy Conservation Code

State Current Code Status IECC Status
Alabama 2003 IMC, IFGC statewide V-F appliances allowed throughout the state.
Alaska 2003 IMC, IFGC and in some areas UMC V-F appliances allowed in various parts of state. Adopts residential provisions of 2006 IECC November 08
Arkansas 2003 IMC, IFGC statewide V-F appliances allowed throughtout the state.
Arizona 2000, 2003 and 2006 IMC and 2003, 2006 UMC State is adopting new codes and V-F appliances allowed in various parts of the state. Yuma is 1996 IMC. Arizona HB 2275 introduced to require statewide adoption of the IECC
California One or more International Codes® adopted statewide with future enforcement date The state does not allow vent-free appliances. The state law has been changed but regulations have not been promulgated. Energy Commission to pesent draft language for 2008 IECC
Colorado One or more International Codes® enforced within state at local level, 2006 UMC in some areas V-F appliances allowed in various parts of state. Because of higher aaltitutdes, some code areas do not accept. Colorado HB 1146 introduced to require municipal adoptions of the IECC
Connecticut 2003 IMC statewide V-F appliances allowed throughout the state. New Committee to Develop Energy Standards for State Buildings
Delaware 2000 - 2003 IPC and IMC V-F appliances allowed throughout the state.
D.C. 2000 IMC V-F appliances allowed but not in bedrooms and bathrooms DC Green Building Act passed City Council and considering 2006 IECC requirements
Florida 2003 IMC statewide V-F appliances allowed in most parts of the state. Some ventilation requirements are in effect. Automated Energy Code Compliance System
Georgia 2006 IMC statewide V-F appliances allowed throughout the state. New amendment to 2000 IECC in effect, task formed to review 2006 IECC
Hawaii One or more International Codes® adopted statewide with future enforcement date and UMC in some areas V-F appliances allowed throughout the state.
Idaho 2003 IMC statewide and UMC in some localities This state was an UMC state but is now a mixed state and vent-free appliances are allowed in most areas of state. 2006 IECC expected for 2008
Illinois 2000 IECC throughout the state, 2000 - 2003 IMC Some cities do not allow V-F, City of Elgin does not allow for vent-free appliances 2006 IECC to become effective for State Commerical Buildings
Indiana ICC Statewide V-F appliances allowed throughout the state.
Iowa 2003 ICC Statewide V-F appliances allowed throughout the state.
Kansas 2000 and 2003 ICC There are some cities that do not allow.
Kentucky 2000 ICC and 2003 IECC State is under different codes but V-F products allowed Considering adoption of 2006 IECC
Louisiana 2000 and 2003 ICC and 2003 IECC in some areas 2006 IRC takes effect
Maine 2003 ICC Statewide
Maryland 2003 and 2006 ICC and 2003 IECC in some areas Permission to use VF units in Baltimore from Housing Dept.
Massachusetts One or more ICC codes and UMC V-F products allowed with permits from Plumbers and Fire Departments. Not allowed in bedrooms and bathrooms.
Michigan 2000, 2003 and 2006 IMC V-F products allowed in various areas of state.
Mississippi One or more ICC codes accepted in state
Minnesota The state uses the IECC but disallows VF in cities over 2,500 populations
Missouri 2003 and 2006 ICC
Montana The state has adopted the ICC and UMC Officials are confused as to the use of V-F appliances Hearing on the 2006 IECC in dec 2006 or ealy 2007
Nebraska 2003 ICC Statewide Not allowed in Fremont.
New Hampshire 2000 ICC but not in all cities Manchester, NH does not allow V-F appliances
New Jersey 2006 ICC statewide V-F products allwed throughout the state 2006 I-Codes to be adopted in February 2007
New Mexico 2003 ICC and UMC codes V-F products allowed only for propane use
New York 2000 ICC statewide V-F products not allowed in NYC Proposals for code updates to be published for comments
Nevada Adopting 2006 ICC and UMC The state is adopting the codes and most cities will allow for V-F use in 2007 NV regions review 2006 IECC
North Carolina 2003 ICC statewide V-F not allowed in basements
North Dakota 2000 ICC Codes and UMC V-F allowed in some areas of the state
Ohio 2003 ICC Codes V-F not allowed in Stark County Adopts 2006 IECC
Oklahoma 2003 ICC Codes V-F products allowed throughout the state
Oregon 2003 ICC Codes V-F products allowed throughout the state
Pennsylvania 2006 ICC Codes V-F products allowed throughout the state Approval of 2006 IECC expected soon
Rhode Island 2003 ICC Codes V-F products allowed throughout the state
South Carolina 2003 ICC Codes V-F products allowed throughout the state 2006 IECC to be implemented in July 2008
South Dakota 2003 ICC Codes V-F products allowed in some areas of the state depending on the recognized code
Tennessee One or more International Codes enforced throguhout state V-F products allowed throughout the state
Texas 2000 ICC Codes Products not allowed in Austin and Houston
Utah 2003 ICC and 2003 IECC V-F products allowed in proper altitudes 2006 IECC effective in Utah
Vermont 2003 ICC V-F products allowed in most areas of the state 2005 Vermont Guidelines for Energy Efficient Commeercial Construction to become effective
Virginia 2003 ICC V-F products allowed throughout the state
Washington 2006 IMC and UMC V-F products allowed in some areas of the state depending on the recognized code 2006 Washington State Energy Code will be published soon
West Virginia 2000 IMC V-F products allowed throughout the state
Wisconisin IMC Statewide V-F products allowed in homes built prior to 1980 Review of 2006 IECC with Wisconsin Amendments
Wyoming IMC and UMC V-F products allowed in some areas of the state depending on the recognized code

This data was downloaded from The Vent Free Gas Products Alliance on Dec. 12, 2011

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Answers to Recent Gas Logs Questions Posted To This Page
  1. Question #9479 - Posted: 4/8/2014 1:36:59 AM

    Gas Logs Question

    QUESTION: I am looking for Peterson Model # SDPG46-18-17, but I do not see it on your web site. Do you carry it?

    ANSWER: Yes, we do carry it. Here is a link: Peterson SDPG46-18-17 Split Oak Designer Plus

  2. Question #9475 - Posted: 4/8/2014 1:29:42 AM

    Gas Logs Question

    QUESTION: On a RH Peterson burner, what is the difference, or pros and cons from a G45A Burner and a G45 Triple T Burner? Is it just the certification or is there a performance difference as well?

    ANSWER: The G45A has a manual safety pilot that is factory installed and tested to meet ANSI approval. The G45 is a match-light burner with no safety pilot. If you purchase a G45 and add a safety pilot it will not be installed and tested at the factory. Otherwise, both burners are identical and both are Triple T. Many cities and states require ANSI approval, so if in doubt, it is best to purchase an ANSI approved burner.

  3. Question #9474 - Posted: 4/7/2014 1:30:01 AM

    Gas Logs Question

    QUESTION: I have a zero clearance fire place that had the chimney removed when the house was re-roofed. I never intend to burn wood in it again. It never worked very well burning wood. Ventless is an option, but what are my options for a vented log? I would not want to take the vent through the roof. Can it be vented to a side wall? What are the limitations for running vent horizontally (how long)? I live in St. Louis, MO. Firebox can handle a G10 18

    ANSWER: There are no options to vent a previous wood burning fireplace out a side wall, it must be vented through the roof as it was before in order to burn any gas logs, vented or ventless. Please do not burn anything in your fireplace without having he chimney installed as it was will not be safe.

  4. Question #9467 - Posted: 4/3/2014 7:53:00 AM

    Gas Logs Question

    QUESTION: I am looking at model HRG45-24-P-SS. the gas line comes into the fireplace from the left side (looking forward at the fireplace). Will this burner-log set work? When I looked at the instruction manual, the diagram shows the gas line on the right.

    ANSWER: You can easily reroute the gas line to the left side using a longer flex tube or black pipe. Often times, depending on the location of your gas line, the flex tube that comes with the burner will reach the other side. If it does not, then you can purchase a longer flex tube from us or from a hardware store or home center.

  5. Question #9455 - Posted: 2/17/2014 9:10:47 AM

    Gas Logs Question

    QUESTION: Cn I just order the burner since I already have a 24 " split oak log set? My existing burner is leaking. Am looking at the G46-24 SPK.

    ANSWER: Yes, if you already have Peterson logs, we can supply you with the correct burner that is matched to them. The G46-24-SPK is one of the burners that is compatible with your logs. Give us a call and we will process your order over the phone. Call: 1-800-201-1193.

  6. Question #9454 - Posted: 2/17/2014 9:09:00 AM

    Gas Logs Question

    QUESTION: Hello, Thank you for taking my question. We have install installed a ventless fire place Patterson.. The unit was complete but had no logs supplied. Bought new logs. Can any ventless log be used with the burner. Or are the logs and burner sold only in sets?

    ANSWER: Warning: Do not use any logs other than those designed for the particular burner you own. The logs are in fact specific to the burner. It is critical that you get the right logs because if the flame hits the logs differently than the original design it can cause the gas to burn incompletely. Incomplete combustion of gas results in the additional byproducts of soot and carbon monoxide (lethal and odorless), which will be introduced directly into your home.

  7. Question #9449 - Posted: 2/1/2014 3:26:13 PM

    Gas Logs Question

    QUESTION: I have a Peterson 18" gas log set I'm installing myself. The installation manual shows a right hand gas supply. My fireplace has a left gas supply. Can I just disassemble the burner pan and convert it to a left gas input and put the cap on the right? Or do I need to run a lot more pipe all the way from the left side to the right side? Thanks

    ANSWER: If you have a matchlight system (one without a safety pilot) then you can switch the plug and orifice from one side to the other to convert it to left gas input. If you have a safety pilot, it depends on the pilot system you have: some of them can and other cannot be will be obvious because the pilot mechanism would be upside down when reversed. If such is the case, then either get a longer flex tube from a home center, or reroute the gas line using black pipe and elbows.

  8. Question #9448 - Posted: 1/30/2014 9:12:57 AM

    Gas Logs Question

    QUESTION: We have a "Fire-Gear" vent-less propane fireplace. It gives off a noxious odor. We had it service but to no avail. We are thinking of replacing it w Peterson brand. Will this take care of our problem?

    ANSWER: Fire Gear is not a top quality brand like Peterson, so it is quite likely that replacing them with a better quality vent free gas log from Peterson will help reduce the odor. But it is important to be aware that ALL ventless appliances produce some odor because all of the byproducts of burning the fire are introduced into the room. Propane can be particularly worse than natural gas because the quality of the propane varies from supplier to supplier. The more impurities there are in the propane, the more potential there is for smell coming from burning a ventless gas log. Although we would love to sell you a new gas log set, we cannot guarantee that it would eliminate or reduce the odor. The only way to find out would be to install them. At least in that manner, you would know for sure whether it is the log set causing the problem, or the gas you are being supplied. Read more about what causes vent-free gas logs to produce a smell:

  9. Question #9447 - Posted: 1/30/2014 8:46:17 AM

    Gas Logs Question

    QUESTION: My daughter has vented gas logs in her bedroom which is about 24x36. It is her primary heat system. Recently we noticed that the ceiling and top part of her walls were becoming covered in black soot. Why would the logs start this and is it dangerous to them. They have a 1 month old that sleeps in that room as well. I have noticed that some of the baby toys that are plastic have the black on them also. I am very nervous about this. Would it be better for them to get ventless with a heatalator?

    ANSWER: Please stop using the gas logs immediately, it is dangerous to use them if they are producing soot. Where there is soot, there is also carbon monoxide, which as you know is a lethal odorless gas. You need to have your gas logs serviced or replaced because they are no longer burning cleanly as vent free gas logs should. Some Heating and AC companies are qualified to service ventless appliances, so use your local yellow pages to call around. Or, you can use the resource on this page to locate a professional who is qualified to service your gas logs: Locate a Gas Log Service Professional.

  10. Question #9446 - Posted: 1/26/2014 3:14:39 PM

    Gas Logs Question

    QUESTION: I have a Peterson real fire vented gas log system 18inch in my fireplace for several years and am very satisfied. I would like to change just the burner to make a vent free system for more heat. Is this possible. Thanks

    ANSWER: Unfortunately you cannot change just the burner in order to create a ventless gas log set. The burner and logs must be designed to work together, so you will need to buy a complete setup. The reason is that ventless gas logs must burn in a very controlled manner in order to burn cleanly. Any disruption to the way the flame burns, such as touching the logs in the wrong place, will cause the gas to burn incompletely and produce exhaust...including carbon monoxide and soot. So the flames cannot touch the logs in any manner in which the system was not designed...which means you must have the correct logs and they must be stacked exactly as described in the owners manual.


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