This is a membership forum. As a guest, you can click around a bit. View 5 pages for free. If you would like to participate, please join.

[ Pitmaster Club Information | Join Now | Login | Contact Us ]

There are 4 page views remaining.


No announcement yet.

Thermal Mass with a Weber Kettle, a PartyA, and a Slow'N'Sear

  • Filter
  • Time
  • Show
Clear All
new posts

    I certainly do not have the answer but couple thoughts pop into mind:

    1. If this is freight rail aren't we talking close to if not we'll more than 100 lbs/ft?

    2. Would you be pre-heating the rail as it seems like it would take an enormous amount of energy to heat something with that mass?

    3. Would you not benefit from insulating the unit in addition to adding something with mass wether it be iron or some sort of ceramic material?

    just curiosity on my end as the concept is interesting.


      When trying to smoke a brisket on a PK Grill, I put a heavy cast iron griddle between the coals and meat as both a baffle and thermal mass. It's 1 unscientific data point, but I found it to work against me more than for me.

      I spent some time thinking about it - I'm by no means an expert, but I think physics and chemistry of energy transfer are basically the same now as when I studied them in the dark ages. Adding internal thermal mass without improving insulation means you still have the same amount of heat loss out of the system that has to be replaced by adding energy to the system. Depending on how you use the thermal mass (where it is placed, etc.) it might have some benefits when it comes to diffusion of temperature, consistency of temperature, etc. But ultimately by adding mass you are increasing the amount of fuel you need to heat the mass, and then you have to continue to burn fuel to maintain the temperature based not on the internal thermal mass but on the heat loss from the system.

      One man's amateur thoughts - what did I get wrong?
      Last edited by radshop; April 7, 2018, 12:48 PM.


      • holehogg
        holehogg commented
        Editing a comment
        radshop I agree with you and am by no means an expert but I think before adding internal mass, insulating the vessel should be the first consideration. I noticed a huge difference when insulating my vertical with aerolite material. jfmorris

      • holehogg
        holehogg commented
        Editing a comment
        Just on that point even when I cladded with timber boards with no insulation just an air gap between the SS container and the wood cladding also made a difference, I trust this makes some sense to the discussion.

      • radshop
        radshop commented
        Editing a comment
        Makes sense holehogg - I get the idea, but would love to see a pic or 2 if available.

      Dont mean to hi-jack this post but dont know where to post photo's otherwise radshop without cladding and with cladding.

      Click image for larger version

Name:	20171027_152032.jpg
Views:	129
Size:	107.2 KB
ID:	478936Click image for larger version

Name:	20171127_141421.jpg
Views:	105
Size:	82.8 KB
ID:	478937

      The smoker is still a work in progress and therefore haven't clad in SS sheeting as planned yet. I'm about 90% happy with the results, still figuring out a few tweaks needed.


      • radshop
        radshop commented
        Editing a comment
        Nice - thanks


    No announcement yet.
    Rubs Promo


    These are not ads or paid placements. These are some of our favorite tools and toys.

    These are products we have tested, won our top awards, and are highly recommend. Click here to read how we test, about our medals, and what they mean.

    Use Our Links To Help Keep Us Alive

    A big part of this site is our unbiased equipment and product reviews. We love playing with toys and we have no problem calling them the way we see them. Some companies pay a finder’s fee if a reader clicks a link on AmazingRibs.com and buys a product. It has zero impact on our reviews, zero impact on the price you pay, and the sites never tell us what you bought, but it has a major impact on our ability to keep this site alive! So before you buy, please click our links. Here’s a link that takes you to a page on Amazon that has some of our favorite tools and toys: https://tinyurl.com/amazingribs

    The Good-One Is A Superb Grill And A Superb Smoker All In One

    The Good-One Open Range is dramatically different from a traditional offset smoker. By placing the heat source behind and under the smokebox instead of off to the side, Open Range produces even temperature from left to right, something almost impossible to achieve with a standard barrel shaped offset.

    Click here to read ourácomplete review


    Comprehensive Temperature Magnet With 80+ Important Temps

    Amazingribs.com temperature magnet
    Winner of the National BBQ Association’s product of the year award. This 8.5″ x 11″ magnet contains more that 80 benchmark temperatures for meats (both USDA recommended temps as well as the temps chefs recommend), fats and oils, sugars, sous vide, eggs, collagens, wood combustion, breads, and more. Although it is not certified as all-weather, we have tested it outdoors in Chicago weather and it has not delaminated in three years, but there is minor fading.

    Click here to order.

    The Pit Barrel Cooker May Be Too Easy

    The PBC has a rabid cult following for good reason. It is absolutely positively without a doubt the best bargain on a smoker in the world. Period. This baby will cook circles around the cheap offset sideways barrel smokers because temperature control is so much easier.

    Click here to read our detailed review and the raves from people who own them

    GrillGrates Take Gas Grills To The InfraredáZone

    GrillGrates(TM) amplify heat, prevent flareups, make flipping foods easier, kill hotspots, flip over to make a fine griddle, and can be easily moved from one grill to another. You can even throw wood chips, pellets, or sawdust between the rails and deliver a quick burst of smoke.

    Click here for more about what makes these grates so special

    Surely you know somebody who loves outdoor cooking who deserves a gift for the holidays, birthday, anniversary, or just for being wonderful. There he is, right in the mirror! Here are our selections of best ideas, all Platinum or Gold Medalists, listed by price.

    Click here to see our list of Gold Medal Gifts

    Groundbreaking Hybrid Thermometer!

    Thermapen One Instant Read Thermometer

    The FireBoard Spark is a hybrid combining instant-read capability, a cabled temperature probe, Bluetooth and Wi-Fi connectivity. We gave Spark a Platinum Medal for pushing the envelope of product capability while maintaining high standards of design and workmanship.

    Click here to read our comprehensive Platinum Medal review

    The Cool Kettle With The Hinged Hood We Always Wanted

    Napoleon’s 22″ Pro Cart Charcoal Kettle Grill puts a few spins on the familiar kettle design. In fact, the hinged lid with a handle on the front, spins in a rotary motion 180 degrees. It’s hard to beat a Weber kettle, but Napoleon holds its own and adds some unique features to make the 22″ Pro Cart a viable alternative.

    Click here for more about what makes this grill special