Instructables

Making a Simple and Easy Charcoal/ Coal Forge

Picture of Making a Simple and Easy Charcoal/ Coal Forge
In this instructable you will learn how to make a charcoal / coal burning forge from firebrick, a few steel plumbing parts, a steel sheet, some cinder blocks and a blower

Unfortunately I ran out of money before i could finish the forge, in total it should cost around $ 50 USD depending how fancy you want it. The plans you will see are paint mock-ups from my actual design, i do not own a scanner so I had to make pictures.

This is what the finished forge should look like

 
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Step 1: Why a forge and getting started up

When I first discovered wanting to take up blacksmithing as a hobby, I searched and searched for designs and a website to help me get started. Then i discovered AnvilFire, they have some F.A.Q.'s and a whole bunch of info on starting up. They also have a help section called "Guru's Den" you ask questions and they will answer them.

As a begainner at Blacksmithing they recommend to build a forge out of a Brake Drum I decided against it because I really didn't want to be using a rusty piece of junk to hold 3,000 degree charcoal and white hot iron.

So i asked the guru guy a lot of questions.

And I made plans on it

Basically its fire brick in a square pillar shape stacked like a brick wall
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Dakota Joel984 months ago

How would you recomend starting a Coal fire for a forge?

OK so i really like this instructable
the only problem I have is that it took my like four or five reads and examining of the diagram here to realize what was going on.

If you could please maybe label or color the fire bricks different from the cinder blocks used to support the forge that would be great.

And another quick question, without putting a top on the forge, wouldnt that mean that all the heat would just quickly escape?

Thanks,
Nick
yes but thats wat u want it to go up . not out the side that facing you.
shadus2 years ago
You actually CAN use galvanized steel pipe, however you need to remove the zinc coating on the pipe prior to heating it above a couple hundred degrees. There are two ways to do this,

1) you can throw it in another forge... make sure it goes well over the boiling point of zinc and make sure no one is close enough to breath the fumes or that you're outdoors and stay well clear. Takes about 1000 degrees to do this. Give it a while at that temp. Keep in mind overall, unless you have lung problems, even if you do breath it... you're likely not going to die, but you will wish you were dead. Zinc vapor is rough and it'll lay you low for a day or more.

2) alternately, you can submerse it in vinegar for a couple days (or boiling vinegar for say a day) until the zinc is completely removed, a faster process is giving it a muriatic acid bath until it quits fizzing, but then you have to neutralize it in a soda bath or similar. In either case you need to give it a coat in something to prevent rapid rusting.

The better option of course is using "black" plumbing which doesn't have a galvanized zinc coating... but 2" "black" plumbing is getting increasingly hard to find... and 2" galvanized is still very common. YMMV.
or u can use common electic conduit an spray it using high engine temp paint let it cure complitely b4 u fire it then after the 2nd firing spray it agin.
dnorm4 years ago
i guess it would be a pain to buy real coal, but how about making your own charcoal?   all you need is wood, and a type of furnace  (which is what a forge is)    tho im sure you dont want to use chemically treated lumber, anything that has been painted, stained or varnished, particle or flake board or plywood, panelling, or any type of 'fake or composite'...     but scrap pieces of plank or 2x4's?    why not?...   and it wouldnt have the 'extras' the 'consumer' charcoal does...
actually depending on where u live u can buy it in 50lb bags. to buying per 1/2 ton lots. yes its a pian to get going but it'ill heat really nice. used to heat the house with it during the late 70 to early 80s.
actually depending on where u live u can buy it in 50lb bags. to buying per 1/2 ton lots. yes its a pian to get going but it'ill heat really nice. used to heat the house with it during the late 70 to early 80s.
whitlox1 year ago
You should look at the design at WhitloxHomestead.com.
Mitten7 years ago
i just use a coffee can with holes poked in the bottom and a hairdryer ...
acer73 (author)  Mitten7 years ago
the coffee can would melt after a bit
Mitten acer737 years ago
coffee cans are made from steel, and it gets hot enough to melt aluminum in a steel canned veggie can in the middle of the coals without melting.
yeh, but you're subjecting the can to intense heat for a long time, the steel turns so crusty and anaemic that you can literally poke a finger through it.
but if you poke your finger thru,u can say this: "What's in the box?Pain."
lucien237 Derin2 years ago
Dune ftw.
LOL aneamic steel, the irony.
Ha ha ha! I get it. "Iron"-y.
ROFLCOPTER!  LMFAO!
Derin chuckr446 years ago
rofl
hard2bme3 years ago
THIS IS MY FOUNDRY IM USING COAL AND I JUST CANT SEEM TO GET IT HOT ENOUGH TO MELT COPPER AND WHEN I MELT ALUM IT TAKES LIKE 20 MIN HOW CAN I MAKE IT HOT ENOUGH TO MELT COPPER I CANT USE GAS OR PROPANE IT HAS TO BE COAL
COULD ANYBODY HELP ME OUT PLEASEEEEEEE



Hi ! I'm just getting starting on Instructable and I didn't watch this one entirely.

but, I have build 2 usable blacksmith foundry.

my advices are :

don't insuflate too much air (little embers should not jump out)
put enought charcoal to keep the heat and have a hotbed big enough,
if the hotbed is directly in contact with foundry metal, it will dissipated your heat. Ensure you have ceramic or insulating layer around charcoal firebed.

If your want to melt metal, use another technique. make a foundry like that : http://www.youtube.com/watch?v=eEWIuyeNp2k

and yes, don't use capslock please.
First off do not use caps lock like a troll, Then i would be glad to answer your question.
bombmaker24 years ago
You may want to check out the links you provided in Step 1. I cannot connect to them for some reason.
pj63 bombmaker22 years ago
i had the same problem.... However if you Google 'Anvilfire' it shows you the web site.... pj63
Hey I would just like to point out that this is a forge and not a crucible. to all of those looking to melt various components, you need to look else where for a crucible. This forge is for forging red hot iron and steel. I'm reiterating to save you time, frustration, and false expectancy. This forge is not meant to melt objects.
hard2bme3 years ago
i just cant get it right im using a hair dryer right now but i just cant get my charcoal hot enough it takes like 20 min to melt like a pound and a half of alum how can i make it hotter
j9027714 years ago
3 or 4 sheets of old dry news paper crumpled in to a loose ball laid in a triangle on top of the forge floor, then if you have any pine cones put a pine cone on top of the paper balls, then put your charcoal chunks or coal up the sides and all over the paper and pine cones,  just cover the whole thing up. then light the paper with a match.  slowly give this some air with your blower,  then a little more air after about 30 seconds,  then a little more,  and so on for about 1 and 1/2 minutes then pore on the air.  fire should be nice and hot.  Have been doing this for about 30 years.  works great.
spylock5 years ago
You can make one fairly easy out of a wheelbarrow,a couple fire bricks,clay,a squirrel cage fan,and a few plumbing parts,Id say 100.00 cost max,cheaper with and old wheelbarrow that you dont use anymore.I saw it made on a show called Forge And Anvil,I think,but Im sure you can find the disigns on the internet.
dciocoiu5 years ago
Not bad for a beginner black smith , but i would strongly advice to use fire place ciment that witstends very hot temperatures and you should paint the inside of the forge as well as the outside with the cement.
LIGHTER FLUID to start the forge?? BAD idea, as putting ANY kind of combustible fluid in to your forge is askin for trouble. Fast, awright...but dangerous?? SURE IS. Better (& more fulfillin, for what that's worth) to start your fire with wood shavins, kindling, then the charcoal/coal , add an air flow & there y'are
acer73 (author) 7 years ago
Well this way takes longer but looks nicer and would last longer. Eventually the can would melt
folks i use a castiron cooking pot to melt stuff down. the wife may not like it but oh well.
Vendigroth7 years ago
hey, acer73, great instructable and thanks for jioning the Forge. I'm looking forward to seeing some good stuff from you in the future, hopefully made with this forge. M'self, i'm planning to do an instructable on a forge, different to this but roughly the same size When i make it, i'll have to make stuff with it....
now here I've been wondering where that pic is from for months and now I realize its the "G-man" from Half-life 2
_
Best. Character. EVAR.
personally I hated him for what he was doing, but I LOVED how he talked, it was awesomely creepy.
it takes a little thought to realise that Gman's on Gordon's side.
o.O how so?
heres one of my reasons, which I believe is proof. the Vortagons cannot be evil, it is grafted into their nature to be on the good side. If they fought to stop the G-man, then he must be evil.
The Vortigaunts only fought against you in HL1 becaus they'd been enslaved. After that, they came to earth as refugees to help fight the Combine. They stopped Gman because they needed Gordon for their own tasks, like getting Alyx out of city-17. HOWEVAR: Gman rescued the baby Alyx from black mesa...and the Vortigaunts saved her life in Ep.2...each side's playing different games, using Gordon as the ball, so to speak.
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