web analytics
Outdoor Fireplace Construction - Forno Bravo Forum: The Wood-Fired Oven Community

Announcement

Collapse

I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

Ask Me Anything New Forum Feature

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

Forno Bravo
See more
See less

Outdoor Fireplace Construction

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Outdoor Fireplace Construction

    Hello all....I'm building an outdoor fireplace similiar to the StoneAge Fireplace I've seen online.I've made forms to pour a concrete/perlite mix to form the blocks and I was wondering what you all would recommend for the proportions??? I've tried 50% perlite/50% quikcrete but I think I didn't tamp it enough because it was breaking off on the edges...I'm trying to achieve something lightweight but strong...These blocks will be 24" above the firebox floor (which will be covered, including sides with firebrick)...Many thanks in advance for your help....Julianjym

    Good to be here.............
    I've attached a pic of what I've made so far...this is the base and I made it with 90% concrete/10% perlite...weight wasn't an issue at the lower level but will be when I get further along...

  • #2
    Re: Outdoor Fireplace Construction

    photo of completed blocks:

    Comment


    • #3
      Re: Outdoor Fireplace Construction

      Also, photo of the original construction schematic and finished product:

      Comment


      • #4
        Re: Outdoor Fireplace Construction

        Well, good luck with your project: It looks good. There's a little problem. Perlite concrete is an insulating material: the perlite substitutes for the aggregates in ordinary concrete. It's pretty strong in compression, but it has no tensile strength.

        When you say you're mixing perlite with concrete, instead of cement, I don't know what you mean. Are you mixing some perlite in with ordinary concrete mix, like sacrete?

        Also, concrete, no matter what the aggregate, is not a refractory material. It will break apart quickly in direct flame. That's why we use firebrick and refractory mortar on the inside of our ovens. That commercial unit you've shown will no doubt be made from some form of castable refractory. You may need to consider a firebrick liner to your fireplace, if you plan to use it with any regularity.
        My geodesic oven project: part 1, part 2

        Comment


        • #5
          Re: Outdoor Fireplace Construction

          Dmun...thanks for the reply. I am mixing it with a concrete mix and adding more portland and additives for strength....the firebox will be lined on all sides and deck with firebrick and high temp mortar...the closest block will be approximately 3'above open flame...I want to make these more manageable i.e. lighter...the whole thing I'm going to line with galv. lath and el dorado stone veneer....thanks

          Comment


          • #6
            Re: Outdoor Fireplace Construction

            Let us know how that works. It's not a mixture I've ever heard of.
            My geodesic oven project: part 1, part 2

            Comment


            • #7
              Re: Outdoor Fireplace Construction

              Does anyone know of a recipe for the "Castable Refractory" mix??? I've heard of Norlite...but don't know the mixture...thanks in advance for any help...

              Comment

              Working...
              X