Masterbuilt GS40 Black Propane Smoker, 40-Inch

Masterbuilt 20050211 Black Propane Smoker, 40-Inch

  • Four chrome smoking racks and a stainless steel burner
  • Extra-large capacity of 1,307 square inches of cooking space
  • Gas control valve and spark igniter with Type 1 regulator and hose
  • Porcelain-coated wood chip tray and water pan
  • Push button ignition and a built-in temperature gauge
The rich, full flavor of slow-cooked food has been a staple of outdoor cookouts. The Masterbuilt 40-inch Extra Large Vertical Gas Smoker delivers smokehouse flavor as easy as grilling! This gas smoker makes adding woods chips or water easy and with minimal heat loss allowing you to have as much or as little smoky flavor you would like for your foods. This extra large smoker has over 1,300 square inches of total cooking space on four chrome cooking racks. This smoker also has 15,400 BTU’s with a stainless steel burner. With its convenient, built-in temperature gauge right in the door, you will always know the temperature of your food while it still cooks. The locking door design helps to keep the heat and smoky flavor inside. The push-button ignition makes start up easy. Whether you’re cooking pork, chicken, beef or seafood, the delightfully smoky aroma that permeates from the Masterbuilt 40-inch Extra Large Vertical Gas Smoker has a way of making friends and family flock around the smoker in the spirit of good times and good food!

List Price: $ 149.98 Price: $ 149.98

2 thoughts on “Masterbuilt GS40 Black Propane Smoker, 40-Inch”

  1. 61 of 62 people found the following review helpful
    4.0 out of 5 stars
    Up to the task, September 5, 2011

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    This review is from: Masterbuilt GS40 Black Propane Smoker, 40-Inch (Lawn & Patio)

    Make sure you burn this unit in before cooking the first time, there were a lot of noxious chemicals that burned off.
    I broke this unit in with two racks of pork ribs, two racks of beef ribs, two chickens, a whole brisket, one rabbit, and five pounds of sausage.


    Great temperature control with the propane. Was able to keep it the desired temperature and forget about it
    Capacity is great, could easily smoke four whole turkeys in there
    Adjustable grates were very useful in makeing room for everything
    Comes back up to temp very quickly after the door was opened
    Temperature gauge is dead on accurate and verified by an oven thermometer


    Drip/water pan is a joke, especially for a unit of this size, I overcame by using a large foil pan.
    Smoke pan looks like a fire trap, especailly using the drip pan that came with it I used an old cast iron skillet which did the job very well
    Seems to use a lot of propane, about 1/2 tank for 10 hours of smoking
    Some smoke leaks out the door which means that some heat is escaping that way as well, could accout for the larger than expected propane use. I will be sealing it with some fireplace rope.


    Temp control is great, with the addidtion of a cast iron skillet, the ability to control the smoke is awesome
    Capacity is more than enough for all but the largest of home events
    The food came out great, everything was most and tender because low and slow is the way to go.
    I would recommend it with the easy modifications I have mentioned(seal door, use cast iron pan for wood chunks, use large pan for drip/water pan)

    Rating is four stars for too small drip pan and faulty design of the smoke tray. The issue with the door seems to be a common thread for this type of smoker, no matter where it comes from.
    The unit preformed very well with a large task for its first use.


    This unit continues to perform very well. I have made my own drip pan and continue to use a cast iron skillet for the wood chunks/chips. Turkey turns out fantastic and with the great temp control, there is nothing to fret or fuss over. I have added fireplace rope to the door to seal it, that really helped reduce the propane usage. I have run the smoker for more than thirty hours on a single take of propane.

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  2. 24 of 24 people found the following review helpful
    5.0 out of 5 stars
    Great Smoker, November 1, 2011
    This review is from: Masterbuilt GS40 Black Propane Smoker, 40-Inch (Lawn & Patio)

    When something is so great as this smoker, where to you begin. I made the decision to get a propane smoke as it is a lot easier to maintain a consistent temperature than the traditional charcoal or wood smoker. Also, you don’t have to stay glued to this smoker like the traditional smokers to stoke the coal or wood. The smoker went together with ease. Wanting to do a Thanksgiving turkey, I did a trial run and prepared a 17.5 pound turkey. I preheated the smoker to 250, I set the turkey in the middle of the smoker cabinet and loaded the pan with hickory as well as the water pan. After reloading the pan with hickory blocks three times and the water pan twice the turkey was ready in 7 hours. First of all, I am not crazy about turkey but this turkey was moist and had a fantastic taste. The next order of business before Thanksgiving is ribs and brisket.

    After reading a bunch of reviews, there was a consistent report regarding the temperature gauge on the cabinet door and the pan you put the wood blocks in. The remedy for these two negative were easy to handle.

    1. Purchase a 8″ iron skillet to place over the pan that is furnished with the smoker. Putting your wood blocks in the skillet will insure that the wood does not catch on fire which it will if you use the pan furnished with the smoker.

    2. The temperature gauge on the cabinet door is off anywhere from 20 to 25 degrees. It is not dependable. I used a digital thermometer and stuck the probe in the thigh of the turkey and ran the wire out the cabinet door. I also placed another thermometer of the same type to monitor the cabinet temperature. I took a metal clip and stood the probe in the air attached to one of the grill bars.

    I found that after 7 hours of cooking, I had used very little propane. At 250 degrees which was almost the lowest setting on the control gas knob This grill is worth the money and should generate great BBQ for a long time. Beware…with this large smoker cabinet don’t be surprised if your neighbor tries to talk you into letting them put some meat in the cabinet along with yours.

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