$10 forge burner , if that.

[Sweany]

ain't you slick

 

[Nowicki]

Don't know why but Mark's burner stays cool. We forged for hours and when the burner was pulled out of the forge it was just warm to the touch, even towards the tip. My first forge had a burner that was a 1 1/2" pipe with a 1/2 " pipe inside and it got so hot it would turn red. I like the idea of diferent forges and a movable burner. As a matter of fact I am already in the process of doing just that. I'm using black pipe just in case.

Larry

 

[Mark Williams]

Ray they are 6" nipples. Without the curtain rods it doesnt stay lit very well.

 

[canranger]

Mark would it nbe posible to see a picture of the end of the burner and how you set up the nozzle in the end.
I am right in the middle of building a forge and have seen so many plans I can decide.

Thanks
Abe

 

[Mark Williams]

One of the pictures shows the end of the buner. You can see the end of the 3" sections of cutain rod sticking out. The blurry picture show the end of the copper tube where the tubing was just pinched around the #52 drill bit. You could solder in a tweeko (wire feed welder) tip and drill out the hole.

 

[RokJok]

Mark, Just tried sending you email and got the error (snipped)

So I'll make a fool of myself here in public.

Not being a bladesmith, I'm not sure which end of the burner is which and how it'd get connected up. Making my best guess, I made the modification to your pic linked below. Did I get it right? Do you use propane gas for these furnaces or is there another (better) gas to use? Is the lack of heat build-up in the burner due to sucking room-temp air into the tailpipe section, dragging it along the length of the burner body on its way in, thereby cooling the body?

Sorry for the stupid questions.

http://www.oz.net/~malinski/furnace-burner.jpg

 

[Mark Williams]

I got the message. It just helps cut down on repeated spam. Do me favor and delete my e-mail address from your post. I dont need more spam from the e-mail harvesters.

 

[RokJok]

Do me favor and delete my e-mail address from your post.

Mark...done.

Additional question: With these forced-air furnaces it seems that running in approximately the 1 psi range is typical. Any guesses on the approximate runtime per pound of propane at that pressure? (or number of hours per 20- or 100-pound tank of gas and I'll do the reverse-math)

TIA. You folks who do the fire & hammer knife making still amaze the hell outta me. It looks like magic from the outside.

 

[Mark Williams]

I have no clue on the gas usage. I havent been running it long enough to tell. I should know in a month or two. Propane is the only way I would know hoe to go about this. I'm sure that natural gas could be set up somehow, But I dont remeber which gives more BTU's . I think propane ?

 

[Raymond Richard]

Mark, If and when I find the time I'm going to play around with the new burner. I've got a bunch of stainless pipe. I think its about 1/4" id, I'll give that a try...... Thanks!

 

[MeDoctor]

I'm sure that natural gas could be set up somehow, But I dont remeber which gives more BTU's . I think propane ?

Propane, by a factor of about 2.4:


1 Cu. Ft. of Butane - 3,260
1 Cu. Ft. of Propane - 2,570
1 Cu. Ft. of Natural Gas - 1,075

Shalom,
Mark

 

[blgoode]

I have been planning on building a forge for some time now. This is good info buddy!!!!
I too think that more than one forge is needed for optimal knifemaking.... thats one reason I havent made that transformation from stck removal to forging. Need more equipment all together! Anvil, tongs, hardy tools....