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Posted by Chilla on December 2, 2006, 1:48 am
Please log in for more thread options Howdy,
I would suggest carving 1 brick and make a 1 brick forge until you're
ready to step up to a larger capacity. Considering you've only got a
plumbers hand torch.
If you do this you will definitely be able to get started.
Regards Charles
P.S. 9 x 1 is a recommended ratio of bore to length.
P.P.S. JTH-7 Bernzomatic Hose Torch
Prometheus wrote:
> Hello all,
>
> I got myself a box of firebricks, and stacked them so that the area
> inside my little forge was 81 cubic inches. The only burner I have
> right now is a plumber's style propane torch- and that's not likely to
> change until well after the holliday season, whether I'd like it to or
> not.
>
> I'm guessing that the volume of the interior is just way too big for
> what I'm doing- it will heat a 1/2" bar to a dull red, but it's even
> slower than just holding the torch on it in the open air.
>
> The interior dimentions as I've got the bricks stacked are 2" wide,
> 4.5 " high, and 9" deep. I've got a hole drilled at a approx. 30
> degree angle (pointing slightly upwards, so the tank can sit nearly
> upright) in the center of one of the firebricks on the side. The
> firebricks are cheap fireplace liners from Menard's, 4.5" x 9" x 1.5".
>
> There are some cracks where air can get in due to the roughness of the
> bricks, and after a little experimentation, I made an opening of about
> 1.5" x 2" on each end by laying a firebrick on each end. That seemed
> to work about as well as it was going to work- which is not very well,
> of course.
>
> I'm sure there are some problems with the design that will be
> immediately apparent to someone with more experience, so I'm hoping
> one of you guys will have an idea of how I can tune this up a bit.
>
> What I *can* do within my resources and budget is cut the firebrick to
> whatever size is appropriate for a propane torch forge, and make a
> metal box out of anything from 11-20 ga. 1018 or 301 stainless that
> the firebrick can slide into- I think I could also manage to get a
> second propane or mapp gas torch. hopefully, that's enough to get me
> going!
>
> Any suggestions, and particularly info related to volume and vent
> opening sizes will be really appreciated. I'm sure I'll upgrade to
> something better with a real burner and that ceramic insulation soon
> enough, but I'm just messing around on a budget for now.
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