Glenwood #8 Long Burn

How high above the fire pot is the bottom of the mag?.

Both pics of the mag's look like they have holes towards the top.....what for?.

Pancho wrote:How high above the fire pot is the bottom of the mag?.

Both pics of the mag's look like they have holes towards the top.....what for?.

To pull volatile gasses off the top of the magazine, maybe?

Where is William?

Pancho wrote:How high above the fire pot is the bottom of the mag?.

Both pics of the mag's look like they have holes towards the top.....what for?.

to release volitales - the coal will form gases that you don't want trapped in the magazine, they have to flow out easily. part of burning coal...

dj

nortcan wrote:I made one for the Golden from cast iron water pipe just to see if it would be useful but I didn't burn the Golden very high 125/150 F, and didn't see a great difference with or without it.
Before investing a lot on a magazine, find an old cast iron pipe having the right diam. and weld a top retaining ring can be made easily.

Nortcan, for your bride, 6 inch cast iron pipe was perfect because the stove is small. The Glenwood needs a 7 inch pipe but that size is not made. They make 6 inch and 8 inch. 8 inch is too big, 6 inch is too small... In fact, I don't know of any pipe made at 7 inch, cast iron or otherwise.... It's not as easy as you think....

dj

scalabro wrote:
To pull volatile gasses off the top of the magazine, maybe?

Where is William?

dlj wrote:
to release volitales - the coal will form gases that you don't want trapped in the magazine, they have to flow out easily. part of burning coal...

dj

.....showoffs...

Welp, I would need a 7-1/2"od (max) mag for the No 8 (which I believe is the same for a No 6 and Wings?).
Would that 22ga chimney pipe hold up to the heat?.

Pancho wrote:Would that 22ga chimney pipe hold up to the heat?.

No, but stainless would hold up a lot better, especially if the bottom 3 inches or so were 3 or 4 layers thick. I have had a thin stainless baffle hold up better than a 1/4 inch thick cast iron baffle in an oil fired boiler with very hot white flame.

franco b wrote:

Pancho wrote:Would that 22ga chimney pipe hold up to the heat?.

No, but stainless would hold up a lot better, especially if the bottom 3 inches or so were 3 or 4 layers thick.

I'll get in touch with ALRO when I get back to work on Monday and see what they get for a drop of...304 series tubing.....or steel tubing and make a pattern for casting.

Thoughts?.

It looks to me that the magazine pictured on the previous page (top pic) is only about 3/16" thick....does that seem right?.

Pancho wrote:It looks to me that the magazine pictured on the previous page (top pic) is only about 3/16" thick....does that seem right?.

Looks to me as thin as 1/8 but the bottom appears a lot thicker.
I don't know the thickness of the bottom of a Surdiac hopper but they burn up as does Haas and Sohn. The Franco Belge is over one inch thick and does stand up.

dlj, or anyone else, know of how to get in touch with this Gary Naylor who supposedly has a Glenwood magazine ?

Maybe he'd be willing to loan his magazine as a pattern to have them recast ?

Paul

Pancho wrote: ............................

Welp, I would need a 7-1/2"od (max) mag for the No 8 (which I believe is the same for a No 6 and Wings?).
Would that 22ga chimney pipe hold up to the heat?.

Yup, same size hole as the Glenwood #6 and the 118 Modern Oaks. Now we just need people with a Glenwood 114, 116 Modern Oak and the Glenwood Oak 40, or 50, to measure the mag openings in those.

Then the questions is, do the lengths need to vary based on barrel height ? I'll measure my #6 and 118's fire pot top to magazine opening, and see if they differ.

The more that are cast, the lower the cost per unit would likely be.

Paul

Just measured the length from the magazine flange down to the top of the cast iron firepot (not to the lining), by hooking the end of the tape measure in the magazine recess and sighting across the barrel/pot junction edge to edge.

All three barrels have the same ogee curve rolled bead near the top and a cove curve bead near the bottom, so I think it's safe to assume they are original barrels.

It's 22-1/2 inch length on both my #6 and my 118's, so they use the exact same magazine.

Anyone else ?

Paul

Just to show how I'm not shure about a mag advantages over non-mag, the Sunnyside had the original magazine in when I got it. When I re-restored it, NO-Mag in it.

But some other members could love a mag in their stove , time will tell it.
But according to the very few mag available now, even for complete antique stoves makes me suspicious about mag advantages. Anyway you still need to shake the grates to get the coal going down, so same job. OK you fill up less often but when you do it you add more coal in. Soooooooooooo Plus some times coal can jam in the mag, more difficult to empty the fire pot for re-start a fire or for the annual clean up, if having a stove with over the fire hole ring, the coal can accumulate over the holes...
But like everything, there are always some: + and some -. Just do the math.

There could be several reasons for so few mags surviving.

Maybe they were not a popular add-on to begin with ?
Many of the stoves may have been used for wood and if there even was a mag, it was taken out and lost, or damaged, over the years ?
The thin castings may not last ?
If they didn't have the holes near the top, as speculated for gas vapor release, they may have burned a few eyebrows off during a reloading if the gas suddenly lit off ?

What we need is to hear more from those who have stoves with mags and their experiences with them.

Paul

A magazine will slightly extend burn time.
It will shorten time needed to tend as some coal will already be coke and the rest being hot will release gasses sooner. Greater likelihood of burning more of the gasses. Quicker recovery time to get back up to heat.
The height above the fire pot will be greater the larger the pot diameter. Picture a magazine on a flat surface and filled with coal. As you lift the magazine the coal will feed from the bottom in an ever widening circle the higher it goes. The correct height should dispense coal to match the fire pot diameter.