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Fire pit blocks

This topic contains 21 replies, has 9 voices, and was last updated by Profile photo of Howard hojo04 5 days, 21 hours ago.

Viewing 20 posts - 1 through 20 (of 22 total)
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  • #627772
    Profile photo of Howard
    hojo04
    Pro

    I am build a fire pit with ring and concrete blocks. Theses angled blocks have a small lip on the bottom in the back about maybe 1/8 of a inch and according to the instructions I have to break off the lips on these. What is the best way of doing if any knows? Attached is a pic of a block I have with eh lip on the back.

    Thanks

    Attachments:
    #627774
    Profile photo of Kurt
    kurt@welkerhomes.com
    Pro
    Owatonna, MN - Minnesota

    A masons hammer or a wide cold chisel will pop them off easily. If you have a doraty hammer, a wider chisel in hammer mode will make quick work of it.

    #627784
    Profile photo of Howard
    hojo04
    Pro

    I have neither. I have a regular hammer. By chance a OMT work if I had a crappy cutting blade I didn’t care about?

    #627786
    Profile photo of Ron
    RonW
    Pro
    Holladay, Tn

    I have neither. I have a regular hammer. By chance a OMT work if I had a crappy cutting blade I didn’t care about?

    No the concrete will eat that blade really fast. You can get a cheap cold chisel that would do the job.

    Ron

    A Working Pro since 1994!

    Member since March 26, 2014.

    #627788
    Profile photo of Howard
    hojo04
    Pro

    Alright. I’ will have to go get one today. Which would be better to sue a hammer or rubber mallet on the cold chisel?

    #627791
    Profile photo of Ron
    RonW
    Pro
    Holladay, Tn

    Hammer

    Ron

    A Working Pro since 1994!

    Member since March 26, 2014.

    #627796
    Profile photo of Howard
    hojo04
    Pro

    OK. Thanks @ronw I appreciate it

    #627817

    Alright. I’ will have to go get one today. Which would be better to sue a hammer or rubber mallet on the cold chisel?

    Hammer or solid wooden mallet. Rubber will absorb too much of the kinetic energy

    #627847
    Profile photo of Brian
    Boschmanbrian
    Pro
    Montreal , QC, Canada

    Plain old hammer, if you can get a steel chisel also
    Both are always pretty useful for many tasks

    #628006
    Profile photo of Howard
    hojo04
    Pro

    I started working on it tonight. On one of them I must have hit the sweet spot cause I ended up breaking it. Out of 36 blocks I did 13 tonight and broke 1. Not bad in my opinion.

    #628014
    Profile photo of Ron
    roninohio
    Pro
    New Franklin, OH

    You could also use a diamond blade on a 4 1/2 ” grinder.
    They have wet or dry blades. Cost a bit more but easier.

    #628036
    Profile photo of Ron
    RonW
    Pro
    Holladay, Tn

    I started working on it tonight. On one of them I must have hit the sweet spot cause I ended up breaking it. Out of 36 blocks I did 13 tonight and broke 1. Not bad in my opinion.

    No not horrible. Keep at it should get easier as you go.

    Ron

    A Working Pro since 1994!

    Member since March 26, 2014.

    #628044
    Profile photo of Frank
    58Chev
    Pro
    Etobicoke, ON

    I am build a fire pit with ring and concrete blocks. Theses angled blocks have a small lip on the bottom in the back about maybe 1/8 of a inch and according to the instructions I have to break off the lips on these. What is the best way of doing if any knows? Attached is a pic of a block I have with eh lip on the back.

    Thanks

    @hojo04,
    Who told you that these were fire pit blocks?

    To me they look like typical gardening retaining wall blocks.
    I have to raised gardens made with the exact same block. They will last maybe a couple years in a pit, the heat will break them down over time.

    https://www.lowes.ca/articles/landscaping-guide—build-a-retaining-wall_a1986.html

    “If you don’t pass on the knowledge you have to others, it Dies with you”
    — Glenn Botting

    #628046
    Profile photo of Howard
    hojo04
    Pro

    I started working on it tonight. On one of them I must have hit the sweet spot cause I ended up breaking it. Out of 36 blocks I did 13 tonight and broke 1. Not bad in my opinion.

    No not horrible. Keep at it should get easier as you go.

    It seemed like it. A couple of them I was taking off the lip in 1 hit. I can’t wait to get this finished so we can start using it.

    #628051
    Profile photo of Kurt
    kurt@welkerhomes.com
    Pro
    Owatonna, MN - Minnesota

    WE have regular pavers for our fire pit but it has a steel liner to keep the fire away from the block. I would have to agree that the standard retaining wall block will only last a few years as a fire pit without protection, depending on use that is. with little use, they will last a long time.

    #628100

    You are using the wrong type of fire block for your fire pit . Your making more work for yourself braking the block lock off the using fire blocks or bricks .

    Always willing to learn .

    #628652
    Profile photo of Howard
    hojo04
    Pro

    My pic from a previous post after I read the instructions it says some cutting of the block may be possible for the best fit. It takes 12 blocks per level (need 3 levels). When I put these together to get a fit it would take 11 1/2. Whats the best way to have this block cut to make a good fit? The place I got them from (Menards) I don’t believe have a cutter. I’m not even sure they sell the block in smaller sizes.

    #628663
    Profile photo of Charles
    Sprokitz
    Pro
    Easton, Pa

    Good fit to what ? Tight to the fire ring ? If that’s what you mean I would use the full 12 … that should give a bit of air space between the ring and landscape blocks.

    #628700
    Profile photo of Frank
    58Chev
    Pro
    Etobicoke, ON

    Use an angle grinder to cut the block in half.

    That is one of the main reasons I have a 7″ grinder.
    Buy the cheapest on at your nearest HF

    “If you don’t pass on the knowledge you have to others, it Dies with you”
    — Glenn Botting

    #628733
    Profile photo of Ron
    RonW
    Pro
    Holladay, Tn

    Good fit to what ? Tight to the fire ring ? If that’s what you mean I would use the full 12 … that should give a bit of air space between the ring and landscape blocks.

    I would use the full 12 blocks myself. An air gap would be a good thing. Landscape blocks aren’t really meant to be used as fire bricks.

    Ron

    A Working Pro since 1994!

    Member since March 26, 2014.

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