Thread: Small furnace

I have no idea on the questions you asked. However you may find this interesting
'Paint Can Forge: How To!' - Bladesmith's Forum Board

hope the link works.

ron

Hi Woodwould,

I posted a list of Melbourne based foundry suppliers a while back, you might find what you want with a few phone calls.

https://www.woodworkforums.com/f65/me...pliers-100407/

My approach to furnace design is to go for good insulation, like thick layers of cerachem or kaowool, the end result is it heats up quicker and gets hotter for the same energy input. Doesn't require high temperature bricks. The downside is it's more fragile and requires a bit more care putting stuff in and out.

You can get IR reflecting coatings like ITC-100 that will protect the cerachem/kaowool a bit better, but they tend to be costly.

If you really want a brick type construction, the pyrocrete from Foseco will let you cast whatever shape you want.

Regards
Ray

Just deleted my post ........I read forge and furnace and had replied to the forge idea e-read and saw the furnace bit so deleted.

WW can you clarify is it a Furnace or a Forge your after or both.

For a forge an old Landcruiser rim close off the flutes, fit a pipe to allow a vacuum cleaner for the air circulation, a grate fitted into the rim to allow some air space below.

For a furnace watch for old fuel heaters being tossed out. I saw someone in the web convert one never kept the link.

This is from the Hebel website FAQ:

Can I build a fireplace with Hebel® PowerBlocks?
Hebel® PowerBlocks can be used as an insulating layer around a metal casing. The blocks should not come into direct contact with the flame.

Thanks for the link and info s_o_b, RayG and snowyskiesau.

Originally Posted by wheelinround

Just deleted my post ........I read forge and furnace and had replied to the forge idea e-read and saw the furnace bit so deleted.

WW can you clarify is it a Furnace or a Forge your after or both.

Both actually. I wan't to forge some small thin parts and heat treat others.

Originally Posted by wheelinround

For a forge an old Landcruiser rim close off the flutes, fit a pipe to allow a vacuum cleaner for the air circulation, a grate fitted into the rim to allow some air space below.

That's exactly what I had up until about nine years ago. I welded CHS legs onto the outside of the rim and a hood/heating rack on the top. I welded a flange to the inside which had a few nipples, a bend and a T-piece hanging off it. An old canister vacuum set on 'blow' provided the blast. I only used it for making light things like hinges and locks etc. for my furniture. Anything larger and I had to fire up the big forge.