[TheForge] Chip Bed Forge

Wed Feb 22 16:55:09 EST 2006

Chris K,
On the one hand you are going to lose some temperature to the additional 
structure. On the other hand you are going to recoup a lot of heat loss that 
you otherwise wouldn't. How well you do will depend very much on how well 
you build. So, what will you end up with? After you build one you'll know, 
and that is the only way you're going to find out this year. I will be 
building this forge during June, while taking pictures, making drawings, 
writing out parts lists & construction details, all of which will be sent 
off to the publisher, who will keep them quite secret until the book is 
published next year. If you're in a hurry to find out anything more, you'll 
have to self teach :-)
Mike P.

----- Original Message ----- 
From: "Chris Kilpatrick" <crimsonkil at lycos.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Wednesday, February 22, 2006 10:23 AM
Subject: Re: [TheForge] Chip Bed Forge

A lower combustion chamber makes much more sense, and I can see how it would 
allow for many options.  My next question involves top temp of the forge. 
With a separate box below, even with good insulation, do you have a lower 
top temperature?

-Chris K.

> ----- Original Message -----
> From: "Mike Porter" <michael.a.porter at comcast.net>
> To: "Sponsored by ABANA" <theforge at mailman.qth.net>
> Subject: Re: [TheForge] Chip Bed Forge
> Date: Wed, 22 Feb 2006 10:13:55 -0800
>
>
> Chris K,
> You are not understanding that the forge has a separate fire box
> below the ceramic media, with a separating layer of cut kiln
> shelves turned on edge, and acting as a support grate. The grate
> completely separates the flame area from the ceramic media--giving
> as much space as you need for the flame to filter through the
> media, and for buoyancy to more than overcome back pressure. It
> also allows the "flame box" to be dual walled, with a row of holes
> in the inner walls above the ceramic grate, and two outer holes
> kept low and placed on either side of the burner; outer holes to be
> closed with movable chokes until the fire box heats up. Thus,
> instead of throwing away excess energy, while complicating the job
> of insulating the forge, most of it is recycled. Also, the
> superheated air does not impact the burner, as schemes for mixing
> heated air in the burner always do. Instead, the burner is actually
> cooled somewhat by incoming air.
>
> Now you also know that it can be called a recuperative forge, and
> why any burner will likely work as well as any other burner in it
> (secondary flames becoming a non-issue in this design). So, do my
> statements about sometimes removing the media and using the "forge"
> in various other configurations make more sense? I also recommend a
> lower layer of 1 1/2" refractory balls for thermal loading and an
> upper layer of semi-hollow clay balls for insulation and ease of
> parts movement. Construction details like installing burner
> collars, and how to handle perlite insulation or insulating bricks
> are already covered pretty thoroughly in Gas Burners, in the forge
> cart chapter. All you would do is put side walls on the cart bed,
> build a dual wall chamber with a top grate, and move the burner
> position from bottom to end. For that matter, the burner doesn't
> have to be moved, it would just be a more even heat that way. So,
> people who have already built the forge cart don't have very much
> left to do.
>
> For those who haven't built the cart already, I'd recommend
> building the chip forge as a separate heating unit that can be used
> with other appliances, like kilns for instance (a kiln on a cart
> could start getting pretty tall :)
>
> Mike P.
>
> ----- Original Message ----- From: "Chris Kilpatrick" 
> <crimsonkil at lycos.com>
> To: "Sponsored by ABANA" <theforge at mailman.qth.net>
> Sent: Wednesday, February 22, 2006 8:01 AM
> Subject: Re: [TheForge] Chip Bed Forge
>
>
> Normally aspirated with the clay media interfering with the flame?
> Maybe I am not understanding how this works, but I imagine a flame
> coming up through the chips which offer back pressure and make a
> coned flame impossible.
>
> What am I not understanding?
>
> Chris K
>
> > ----- Original Message -----
> > From: "Mike Porter" <michael.a.porter at comcast.net>
> > To: "Sponsored by ABANA" <theforge at mailman.qth.net>
> > Subject: Re: [TheForge] Chip Bed Forge
> > Date: Tue, 21 Feb 2006 18:45:26 -0800
> >
> >
> > Chris K,
> > It can run fan blown or naturally aspirated. Either way, it doesn't
> > make smoke.
> > Mike P.
> >
> > ----- Original Message ----- From: "Chris Kilpatrick" 
> > <crimsonkil at lycos.com>
> > To: "Sponsored by ABANA" <theforge at mailman.qth.net>
> > Sent: Tuesday, February 21, 2006 3:33 PM
> > Subject: Re: [TheForge] Chip Bed Forge
> >
> >
> > Mike,
> >      I am assuming forced air on these, yes?
> >
> > -Chris K.
> >
> > p.s.:  How does this differ from my forge that glows and heats
> > through convection, conduction and radiation?
> >
> >
> >
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>
> It is I who formed the blacksmith,
> who fans the flame into a fire and
> fashions a weapon fit for it's work.
>
>
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>

It is I who formed the blacksmith,
who fans the flame into a fire and
fashions a weapon fit for it's work.

-- 
_______________________________________________

Search for businesses by name, location, or phone number.  -Lycos Yellow 
Pages

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