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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 #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

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    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

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

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    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

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

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  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.

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  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

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

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    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?

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