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    Empire BF20 Blue Flame Gas Heater - Propane - BF-20LP

    List Price: $539.99
    Sale Price: $436.50
    You Save: $103.49 (19%)
    In Stock.
    * Usually Ships Same Business Day.
    • Efficiently generates 20,000 BTUs of heat
    • Requires no venting
    • Soothing blue flame
    • Can be mounted on a wall or sit on the floor
    • Runs entirely without electricity
    • Convenient hydraulic thermostat controls
    • Standing pilot ignition system
    • Automatic shut-off and oxygen depletion sensor
    • Natural gas and propane models available
    • 5-year limited warranty and 5-year limited labor warranty
    • Dimensions: 22" H x 18" W x 6 1/2" D
    • Minimum Clearances:
    See complete product details >>
    Popular Accessories for this Item
    Product Details
    Manufacturer: Empire
    Part Number: BF20LP
    eFireplaceStore Item Number: CUI-BF20LP
    UPC: 720968325020


    • Efficiently generates 20,000 BTUs of heat
    • Requires no venting
    • Soothing blue flame
    • Can be mounted on a wall or sit on the floor
    • Runs entirely without electricity
    • Convenient hydraulic thermostat controls
    • Standing pilot ignition system
    • Automatic shut-off and oxygen depletion sensor
    • Natural gas and propane models available
    • 5-year limited warranty and 5-year limited labor warranty
    • Dimensions: 22" H x 18" W x 6 1/2" D
    • Minimum Clearances:
      • 36" from top
      • 5" from each side
      • 2" from floor when wall-mounted
      • 2" from floor when floor-mounted
    * Please Note: This heater is not designed for use when placed on the floor. To ensure proper safety and cost efficiency, place the heater on the Empire Heater Stand, product # CUI-SRS18 which is sold separately (See Accessories tab above for complete product information).

    *Also Note: This Model Cannot Be Used With An Optional Remote Control Or Wall Switch/Wall Mount Thermostat. A Rotary Knob Is Located On The Unit To Control The Temperature Setting.

    Heating your home or office is a cinch with the help of this gas heater. Generating 20,000 BTUs of heat, your room will certainly not be cold any longer with this heater! This Empire heater does not require any source of ventilation and comes with an automatic shut-off and oxygen depletion sensor to ensure your safety. Manufactured by Empire, this portable gas heater runs without any electricity and can be mounted on the wall or left to sit on the floor, depending on your needs. With its ease of use, safety and efficiency, this Empire gas heater may be the answer to all your heating needs!
    Customers Who Viewed This Item Also Viewed
    Customer Questions & Answers
    14 Questions & 15 Answers
    Bill Greer
    from Franktown, Colorado asked:
    January 10, 2017
    My house is at an elevation of 6500 feet. Will this work at that altitude?
    1 Answers
    All ventless heaters will experience outages at elevations above 4500'.
    Will M.
    on January 10, 2017

    from Strafford,VT asked:
    October 11, 2016
    I am heating a space: an 8'x10', 10' mono-pitch roof tiny house, down to 6' of the space. I need a vented heater. Can this heater be vented? And do you have a tiny heater with fewer BTUs? Thank you.
    1 Answers
    We do indeed have a few vented heaters that are very low BTU.
    Brennan W.
    on October 12, 2016

    from ME asked:
    August 3, 2016
    About how much propane would this use per day or per month if it was set at a moderate temperature of about 68 degrees in a 700 foot, well insulated apartment with normal winter temperatures?
    1 Answers
    This unit will use .926 pounds of propane per hour.
    Brennan W.
    on August 3, 2016

    from Loretto, KY asked:
    February 14, 2016
    Does this unit come with a blower or do I need to order that separately? If so, how much is the blower and do you carry that item as well?
    1 Answers
    This will not arrive with a blower, but this optional accessory may be purchased separately and is shown under "Popular Accessories for this Item" on the product page for this item.
    Will M.
    on February 15, 2016

    from Belleville, ONT asked:
    December 14, 2014
    What is the difference between blue flame and infrared heaters? Is it their heat output and efficiency?
    1 Answers
    Both heaters offers models with the same level of heat output and efficiency, but the designs differ in the way they supply heat to the room. Infrared heaters warm a room by warming the objects (furniture, appliances, people) as opposed to the air. Many customers find that this type of heating is more comfortable, as it does not create a stuffy zone around the heater. However, the heater is limited to the reach of the infrared rays. Blue flame heaters warm the air, as opposed to the objects in the room. They can effectively warm a greater area through circulation, but the space immediately adjacent and in front of the heater can be uncomfortable.
    on December 15, 2014

    from OK asked:
    November 1, 2014
    Is this gas heater UL listed?
    1 Answers
    This heater does not carry a UL listing, but is CSA certified to meet Z21.11.2 standards. This is the default standard for unvented room heaters and is accepted in most jurisdictions.
    on November 3, 2014

    from Buckhannon, WV asked:
    August 11, 2014
    What is a hydraulic thermostat?
    2 Answers
    A hydraulic thermostat uses a vial of fluid to control operation of the heater. Based on the temperature that is set, the fluid will expand to a point that the heater will shut down. Once the room cools again and the fluid begins to contract, the heater will come on again. This expansion and contraction cycle will continue to maintain an even temperature in the room.
    on August 12, 2014
    Hydraulic thermostats use what is known as a "thermally expansible fluid." This is a highly reactive fluid that swells as the heat rises and shrinks as the heat falls. This fluid is contained within a capsule inside the thermostat, and a light metal rod is extended into the capsule. As the fluid rises, the rod is pushed up, which affects the thermostat dial. This thermally expansive fluid needs to be very tightly contained--if any escapes, it severely compromises the readings of the thermostat. Very tight seals are placed to contain the fluid inside the capsule. The rod is fitted with a spring and lock system precisely made to react with the fluid, but natural fall back down into place as the fluid shrinks.
    on August 12, 2014
    from Nevada and Utah

    from Seattle Peninsula asked:
    September 29, 2013
    Do I need an external gas tank for this heater, or is it attached to the bottom of the unit? How much gas does it contain, and how long does the tank last in terms of hours? How does one refill it?
    1 Answers
    This unit is designed to be fed from an external fuel tank. While a larger fuel tank is preferable, the smallest recommended tank is a 20 pound cylinder, which would fuel this heater for approximately 18 hours before emptying. Typically a fuel tank of this size can be taken to a tank swap out facility, which is usually sponsored at local gas stations and hardware stores.
    Collin C. - NFI Master Hearth Professional
    on September 30, 2013

    from Boone, NC asked:
    September 9, 2013
    Can I mount the BK20 LP on a wall 6" above the floor?
    1 Answers
    Certainly. This unit only requires a clearance of 2 inches above a combustible floor when wall mounted.
    Collin C. - NFI Master Hearth Professional
    on September 10, 2013

    from Upsala, MN asked:
    December 26, 2012
    Is ventless legal in Minnesota?
    1 Answers
    We're sorry, but we do not have a list of areas where ventless is legal. We suggest your check with your local code enforcement office.
    Dawn H.
    on December 26, 2012

    Jim Blair
    from Eden Mils, VT asked:
    November 22, 2012
    I'm considering this space heater for my remote 280 sq.ft. cabin, or the 10,000 BF10 if it is suitable and more efficient - that's very important. The cabin is super-insulated and we have heated it with the kitchen cook stove gas oven, no problem. So do I understand that this heater, when left alone, has a thermostat control to go on and off to maintain a desired room temperature? Or do you set it and it blows constant heat at that setting? We only need it for six hours per day. Also, is there a space heater you recommend where I could attach the wall thermostat that's already in place, leftover from a broken VT Castings gas heater?
    1 Answers
    Theoretically, the BF10 heater would be right at the capacity for the size of the space and could heat a well insulated area of this size. However, you may choose the BF20, as it would heat the space faster and would not need to run as often. Both units do have built-in thermostatic controls that would allow you to adjust the unit to a desired temperature. The heater would cycle as necessary. Unfortunately, the valves for these units are fully mechanical and will not allow for use of an external thermostat. This is the case for all of our wall mounted vent-free heaters. Only the larger direct vent furnaces and console heaters have provisions for an external thermostat.
    Collin C. - NFI Master Hearth Professional
    on November 23, 2012

    from Charleston, WV asked:
    November 13, 2012
    I live in a rental unit that has one of these as the sole heat source. My flame is really yellow and the unit won't stay lit. What do I need to clean?
    1 Answers
    This issue is commonly caused by a dirty or partially clogged pilot assembly. In order to clean the pilot, the nut that is threaded to the end of the pilot tube will need to be loosened and disconnected from the pilot assembly. The nut is approximately two inches down from the end of the pilot tube. The tube can then be cleaned out with compressed air and the nut re-tightened.
    Tyler M. - Fireplace Specialist
    on November 13, 2012

    from Canby, MN asked:
    November 7, 2012
    I have an Empire BF 20, but I want to set it on the floor and it did not come with attachable "feet" so that it would sit flat. Where can I purchase some?
    1 Answers
    We recommend this product for your needs: SRS18 stand kit.
    Kevin E. - Fireplace Specialist
    on November 7, 2012

    from upper merion, Pa asked:
    December 18, 2011
    How can I avoid the difficulty starting where the flame dies-out while turning the dial from start to low?
    1 Answers
    This concern is reminiscent of one we see often when supply pressure to a gas appliance is too low. Using a manometer, confirm that you have a pressure of at least 11" of w.c.being supplied to the unit.
    Kevin E. - Fireplace Specialist
    on December 19, 2011

    Customer Reviews
    17 Reviews
    82% (14)
    18% (3)
    0% (0)
    0% (0)
    0% (0)
    100% Recommend this product (17 of 17 responses)
    By Margaret from Norfolk, VA on March 14, 2017
    I would recommend this item to a friend.
    Hot Spot
    My new little hot spot is very much what I expected. Lighting the pilot and having it stay lit after installation was brutal, otherwise good. Also, it takes a while to get used to the odor which it certainly has.
    Prossee above
    Conssee above
    By Marilyn from GRIFFIN, GA on February 1, 2017
    I would recommend this item to a friend.
    A Space Heater You Gotta Love!
    This space heater is trim, neat, quiet and efficient. We haven't had any real cold days to test what it can really do, but have noticed it can be set on a lower setting than our old space heater to achieve the same results. We were very pleased with the service at We received our order in a timely fashion and the heater was in good condition when it arrived. We would recommend doing business with this company.
    By Herman from BELLS on September 14, 2016
    I would recommend this item to a friend.
    Nice stove,
    By Joe from BOISE on July 22, 2016
    I would recommend this item to a friend.
    Great service
    Quick service and can't wait to install the heater
    By Holly from ROCKPORT on February 26, 2016
    I would recommend this item to a friend.
    This heater is hottt!
    This heater does what it says. Easy to install, easy to operate and effective and efficent. We heat a 500 sq. ft. room in minutes flat. Have even opened up our double doors to the main section of the house to let some heat in there and our purchase is paying off. Our electric provider gives us weekly updates and our kwh useage has decreased by approx. 15% already. Thanks for a great product!
    ProsEasy installation, operation, effective heat source and efficent
    ConsNone and this is the 2nd heater like this we have. Other smaller unit heats our business shop.
    By Darrell from Macomb, MI on December 2, 2015
    I would recommend this item to a friend.
    very happy with this purchase!
    Very happy with the Empire vent free heater. Heats up my sunroom quickly even when it is below freezing outside. Ordering was easy, and everything arrived on time and in perfect shape. Adding the blower makes a big difference as well!
    By Margaret from THOMPSON FALLS, Montana on November 27, 2015
    I would recommend this item to a friend.
    Excellent choice!
    It is everything I could want in a heater.
    By Ethel from HONEY GROVE, Texas on November 27, 2015
    I would recommend this item to a friend.
    Heats up really well and warms the room up fast, would buy this product again
    Delivery was fast and efficient. Instructions clear and easy to follow. would recommend they offer the hose to connect heater to heat source (ours was propane).
    ProsEasy to install
    ConsNothing at this time
    By Mark D Cole from Lindsey, Ohio on October 5, 2015
    I would recommend this item to a friend.
    Good quality unit!
    Good appearance and finish. Works fine..I have seen less expensive heaters, but they were made in China! I would recommend this ventless heater to anyone! Makes a great backup if you loose your electric!
    By Cory G. from Washington Crossing, PA on January 4, 2015
    I would recommend this item to a friend.
    Well made wall heater
    This Empire BF30 natural gas wall heater is very well made. It has more than the typical sheet metal body of cheaper heaters sold at local hardware stores. It worked perfectly from the minute I installed it and the previous local model never functioned properly and I had to return it. I am looking forward to many years of faithful service from this unit.
    ProsVery good construction
    By BG from Trussville, Alabama on November 26, 2014
    I would recommend this item to a friend.
    Great Heater
    Unit did come in with broken glass but eFireplace sent a replacement glass with no hassle. Well built and easy to install. Originally bought one from a local hardware store and did not realize it was made in China until I got it installed and it did not work. Bought this one and the quality is worth the extra money.
    By Norm Moreau from UTAH on October 28, 2013
    I would recommend this item to a friend.
    Great Unit - Will Keep You Warm
    Be sure to order the fan kit as well it really works to throw that heat .You will have to install it yourself in the unit. If you want to have it free stand on the floor you have to order the stand or it can only go on the wall. The picture is showing it with the stand on it you will need to order it as an extra. This unit will keep you warm and you will not be disappointed . Good for 400 sq ft - not a problem.
    Consit was shipped in a box the glass was missing and so was the owner manual . they shipped me a new glass but they charge me for it . $36.00
    By Lori James from New Hampshire on June 6, 2013
    I would recommend this item to a friend.
    Great Safety Features
    This natural gas heater supplements my central heat. The thermostat is easy to set and the pilot lights the first time. The safety features are a plus.
    By Kathleen Perez from New York on January 13, 2012
    I would recommend this item to a friend.
    Efficient Heater
    This heater is very efficient; I recommend it.
    By Gary Davis from Maine on March 21, 2010
    I would recommend this item to a friend.
    More Efficient Than Previous Heaters
    I used this heater to replace my less efficient units. It is capable of heating large and small areas.
    By Stephanie Carter from Vermont on July 13, 2009
    I would recommend this item to a friend.
    Pleasant to Watch
    Our frigid mountain cabin needed an efficient heater--this one fit the bill. We had expected the base to be included, but it was not, so we had to purchase that separately. To turn the unit on and off, you have to remove the glass safety panel. Since we have no children or pets, we just leave that off so we don't have to be moving it so frequently. The heater keeps the space warm; is pleasurable to watch the flames.
    By Irene Russell from Massachussetts on May 23, 2009
    I would recommend this item to a friend.
    Dependable Unit
    A service technician with 17 years of experience installed this unit for me. He recommended it as a durable, dependable heater.

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