Making a Foundry Furnace From An Old Water Heater, Part 1

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  • Published on:  Friday, March 8, 2019
  • Part 3 of water heater series. Repurpose of a water heater into a foundry furnace. This is a great way for the do-it-yourselfer to build a foundry furnace that will last a long time, heat up quickly, be fuel efficient, easy to build, and not break the bank!

    Water heater series:
    Part 1-
    Part 2 -
    Part 3 -
    Part 4 -

    Luckygen1001's channel:

    Links to supplies used (affiliate links):
    Non-firing refractory:
    100HT ceramic coating (final coat):
    Ceramic blanket, 2600F:

    Satanite supplier:

    My other channel:


  • Source:


  • Antonio Melendez

    Antonio Melendez

     7 days ago +1

    I know this is a stupid question but what type of insulation is that

  • rgb


     7 days ago

    Is there a reason you don’t coat the wool directly with the tougher refractory cement - basically skip the satanite?

  • Aubrey Marsh

    Aubrey Marsh

     7 days ago

    You should do a collaboration with Peter Brown
    You two sound the same, why not?

  • Michael Rocher

    Michael Rocher

     14 days ago

    ASBESTOS I HAVE HAZMAT TRAINING-That being said fiberglass will work it's way out of your lung's, however Asbestos fibers never, they get lodged in the pores of your lungs and work their magic trying to escape and create cancer so just trying to save live's for readers and you. Great video I have a large kiln and it will be my new forge thank's for the info.

  • Anthony Basile

    Anthony Basile

     28 days ago

    That’s going to be nice

  • Anthony Basile

    Anthony Basile

     28 days ago

    Go big or go home wright

  • Julian HG

    Julian HG

     1 months ago +1

    Lucky is awesome, very helpful, a total pro. Lovely furnace upgrade. Very nice to see insulation in there, I didn’t do it on mine and I wish I had. Great video as usual.

  • Tommy Pasley

    Tommy Pasley

     1 months ago

    Will you look at that, the old furnace fits inside of the new one.

  • Summer Barbour

    Summer Barbour

     1 months ago +1

    Can I use a stainless steel liner made from a beer keg to help hold the cement mixture together?

  • George York

    George York

     1 months ago

    I came across your video while looking for foundry that is close to what i had built etc. I just finished building my furnace and propane heater but I think i may not have enough heat to properly attain temperature. I built the foundry out of a 55 gallon drum. I found someone who had a ceramic shield drum about 2 inches thick and about 14 inches inner diameter and about the height of the drum but i had to cut off some since i cut the drum roughly 5 inches to have a shielded top etc. I also had kaowool and used this to help insulate the space between the ceramic shield and the drum added extra heat protection etc. SO i fired the propane heater and waited fro 10 minutes but it did not get a glowing orange heat. I am suspecting that i have too much volume that needs heating etc. I am debating whether or not to add a blower to the torch to ramp up more heat etc. your thoughts or anyone else etc I could provide pictures etc let me know.... Thanks guys!

  • Chris Avila

    Chris Avila

     2 months ago

    Do you sell them

  • lasalletxnurse1


     2 months ago +1

    I refuse to watch videos with the “Q” thing. I wanna watch a video....not a big “Q” videoo!

  • Michael Perkins

    Michael Perkins

     3 months ago +2

    Hey Man... I love your videos! The cannon is incredible!!! I have been wanting to try metal casting for years, but have always talked myself out of it due to the associated costs and dangers. But I think I am finally ready to go for it. I followed all your links in the description to try and extimae the total cost to build a casting foundry, and here is what I came up with...
    1.) Ceramic Fiber Blanket 2600F 2" thick "x 24" wide x 12.5 ft. long = $126.49 + $40.30 shipping (Woah! What's up with the shipping?!)
    2.) ITC-100HT Pint Ceramic Radiant Heat Reflection & Protective Refractory Coating = $55.00 + $20.74 shipping (Is one pint enough?)
    3.) MEECO'S RED DEVIL 611 Refractory Cement = $32.47
    4.) Satanite Refractory Mortar: 20 lbs: $62.35
    Total: $337.35

    If you don't mind a few questions, or if you might one day do an update video as kind of a Q&A, here are the things that I'd LOVE to know...
    1.) I do not have a water heater to cannibalize. Any other ideas for a vessel?
    2.) I do not have the equipment or experience to weld. Would you say it is impossible to build a forge without welding it?
    3.) Do all of the things I have listed above look correct to you, and are the prices about right? i.e. would I need to order two of the Fire Blankers or is one 12.5 ft. role enough?
    4.) Do you have a video on the burner?
    5.) Do you have a video on crucibles? Where to get them, things to consider. etc?

  • thetom12395


     3 months ago

    how many hour/days did this take you ? you make it look easy

  • image point

    image point

     3 months ago

    Be more carfull with thats asbestos brother. Gd vid

  • Perma Grin

    Perma Grin

     4 months ago

    Ahh yes. A realistic representation of ‘How To’. This is awesome info on a build. Thank you

  • Sophie Latterno

    Sophie Latterno

     4 months ago

    It looked like you were doing some quick welds without gloves. Hopefully you don't still do that. The UV from the arc will increase risk of skin cancer.

  • Benata


     4 months ago

    Thermal bridging?

  • Somerset Rob

    Somerset Rob

     4 months ago

    All the gear but not much idea? (writes the man with neither)

  • Robert Jerge

    Robert Jerge

     4 months ago

    IRT satanite: