Jump to content
I Forge Iron

How to Build a Forge/Foundry from an old Vacuum Cleaner


Recommended Posts

You can see my "Flying Turtle" Forge from design to meat-space.
Also, some cast bronze artwork created from that green flower foam.

How to Build a Forge/Foundry from an old Vacuum Cleaner

I would be happy to hear everyones thoughts for improvement in design, etc... I am intrigued about going blowerless, perhaps in the future.



Link to comment
Share on other sites

Hi Tubal-cain !

a#1: I usually only run it for about an 1hr to 45 min. per pour event (running the gas @ 21-25 psi.); I can fit a 3 pound crucible in the furnace without having to set the thing (furace) on its butt. I'm no math wiz so i'd answer the barbie propane tank lasts me a long time.

a#2: I've never really tried to cast Iron, though i have burned steel with it... does that count?

Link to comment
Share on other sites


Great website. Love your humor!

Looks like a functional forge. I'm trying to go the coal route, but I might end up with propane, not sure yet. Will depend on the neighbors and/or regulations in my area I guess...

I do have a 20 gal propane tank I use on a small heater I have in my home office (detached from the house) which I could use. Seems having a small propane forge couldn't hurt, and they don't look that difficult to make...so why don't I get off my @$$ and make one?:mad:

I am planning to make one, just not sure how involved I will get with it, and that will depend on where I go with the coal forge.

Link to comment
Share on other sites

  • 2 weeks later...
  • 1 month later...
  • 1 year later...

On the first run of this new forge I didn't have a small blower handy so I hooked up an old shop vac. Put out WAY too much air so I had the gate valve closed down to a crack. I've since replaced the shop vac with a small Dayton blower and that provides a more reasonable air flow. Any fan providing at least 25 cfm will work. The challenge comes in building a mount to hook it to your burner.


Link to comment
Share on other sites

  • 9 months later...
  • 3 years later...

Ol'Dawg, the best place to buy insulating wool, firebrick, kiln shelf, etc. locally would be a pottery supply warehouse or school in any large town. They will sell by the foot instead of by the roll, which gets pricy. Check the Yellow pages or ask a local potter where they go.

It seems there are lots more folks throwing ceramic do-dads in a home-made propane fired kiln at home (without upsetting the neighbors) than there are blacksmiths.

Of course, networking with your local smiths would be helpful too, but some folks just ain't joiners.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...