Furnaces and their construction

Build threads on the construction of home foundry furnaces

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  1. Al2O3
    Locked Sticky

    Foundry Tutorial

    Al2O3, Jan 3, 2021
    Replies:
    8
    Views:
    29,421
    Al2O3
    Jan 3, 2021
  2. Andrew Marquardt

    Building new furnace

    Andrew Marquardt, Nov 14, 2025
    Replies:
    9
    Views:
    2,930
    Andrew Marquardt
    Mar 12, 2026
  3. Brice

    Paint the Kaowool on the inside and outside?

    Brice, Mar 10, 2026
    Replies:
    3
    Views:
    844
    Al2O3
    Mar 11, 2026
  4. Guitar Bill

    Getting back into the game

    Guitar Bill, Mar 3, 2026
    Replies:
    8
    Views:
    1,370
    Guitar Bill
    Mar 6, 2026
  5. Al2O3

    Microwave Melting Furnace and Kiln

    Al2O3, Feb 26, 2026
    Replies:
    8
    Views:
    1,507
    Mark's castings
    Mar 5, 2026
  6. HT1

    Furnace insulation and refractory

    HT1, Feb 23, 2026 ... 2
    Replies:
    22
    Views:
    3,805
    Mark's castings
    Feb 27, 2026
  7. HT1

    ITC 100

    HT1, Feb 26, 2026
    Replies:
    3
    Views:
    938
    HT1
    Feb 26, 2026
  8. HT1

    HT1's Insane overpowered new furnace build

    HT1, Sep 18, 2021 ... 2 3
    Replies:
    50
    Views:
    26,097
    HT1
    Feb 14, 2026
  9. Tranby1

    RECHARGING AN ELECTRIC FURNAVE CRUCIBLE

    Tranby1, Jan 12, 2026
    Replies:
    2
    Views:
    1,475
    Tranby1
    Jan 13, 2026
  10. Jennifer Petrila

    Smelting Furnace from scrap alum melter.

    Jennifer Petrila, Dec 23, 2025
    Replies:
    0
    Views:
    1,517
    Jennifer Petrila
    Dec 23, 2025
  11. Mark's castings

    New oil burning furnace build

    Mark's castings, Jun 6, 2024 ... 3 4 5
    Replies:
    90
    Views:
    50,590
    Mark's castings
    Dec 22, 2025
  12. metallab

    Low emissivity paint and crucible impinging flame: does it really improve furnace efficiency ?

    metallab, Nov 5, 2025
    Replies:
    2
    Views:
    2,058
    metallab
    Nov 6, 2025
  13. brandon henneberry

    New furnace build

    brandon henneberry, Oct 26, 2025
    Replies:
    12
    Views:
    3,797
    Tops
    Nov 2, 2025
  14. metallab

    Electric heating: Does anyone use SiC elements ?

    metallab, Oct 11, 2025
    Replies:
    2
    Views:
    2,045
    Al2O3
    Oct 11, 2025
  15. metallab

    $400-$800 Induction furnace: worth the purchase ?

    metallab, May 22, 2025
    Replies:
    4
    Views:
    5,468
    metallab
    Jul 27, 2025
  16. bmac2

    Kaowool Hole Punch

    bmac2, Jul 1, 2025
    Replies:
    1
    Views:
    3,533
    Rob Hall
    Jul 1, 2025
  17. metallab

    What do you think of this VEVOR propane furnace ?

    metallab, Jun 15, 2025
    Replies:
    5
    Views:
    4,583
    FishbonzWV
    Jun 20, 2025
  18. metallab

    Any experiences with SiC elements ?

    metallab, Jun 8, 2025
    Replies:
    0
    Views:
    3,350
    metallab
    Jun 8, 2025
  19. metallab

    This propane furnace for only $160 ?

    metallab, May 21, 2025
    Replies:
    3
    Views:
    4,078
    HT1
    May 30, 2025
  20. Rob Hall

    Toolshed's 2025 Furnace build

    Rob Hall, May 22, 2025
    Replies:
    1
    Views:
    3,911
    Rob Hall
    May 27, 2025
  21. Mburtis

    Lift out vs lift off

    Mburtis, Mar 22, 2025
    Replies:
    10
    Views:
    5,803
    Mark's castings
    May 20, 2025
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