200A and 202 reproduction
frames back
in stock.

wiljen
What, if anything, would be the result of buying an extra set of burner rings and stacking them on top of the existing set on the primary burner of a 413H stove?   I was thinking that the system is capable of pushing enough fuel to run both burners so doubling up on the rings on the primary would allow that extra flow through the primary burner and potentially make it run hotter when the aux burner is not in use.   On the downside, it might mess up the either the fuel/air ratio or lower the pressure too much and make it run poorly.  Anybody tried it?  I am tempted to move the aux burner set over to the primary and see what it does.  I can always move them back when it fails miserably or buy an extra set if I want to leave it that way.
Will from TN.

Quickly becoming a stovie.  Love HGPs, Military and Utility Burners, HeatMasters and any other gigantic Flame.  Always interested in 523s, HGPs, and 23x
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Gunhippie
I'm just working on a 413D right now, and had it lit for the first time since cleaning a few minutes ago. That main burner CRANKS as it is.

The biggest problem I see is that there would be no alignment for the added rings--they'd be really hard to keep lined up. Over-tightening the screw--which would also need to be longer, but that's no problem as hardware stores carry them--1/4-20 brass panhead machine screw--results in constriction of the gasses and a weak burn.

I could try it since I have a set of extra rings, but see no reason to do so. If it did work, you'd soon have a stove case missing half the paint.
It's priceless until someone puts a price on it.
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Gary
wiljen wrote:
What, if anything, would be the result of buying an extra set of burner rings and stacking them on top of the existing set on the primary burner of a 413H stove?
Why not approach this incrementally as you would when hand loading? Try an extra ring or two and see what happens. May save your eyebrows! Or like Timm says, missing half the paint.

Gunhippie wrote:
I'm just working on a 413D right now, and had it lit for the first time since cleaning a few minutes ago. That main burner CRANKS as it is.
I agree they make a lot of heat and has anyone ever noticed that on many used suitcase stoves the front of the case is charred in front of the main burner? On the suitcase stoves the burners are not centered but closer to the front causing the user to place the pan closer to the front and trapping the heat against the front side of the case. WHY are the burners not centered front to back?
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wiljen
Ok, now that we have gotten all the caveats, has anyone tried it and what was the result?   Please also note that I stated 413 for a reason as it is not a 425 and does have more space around the burners.    I know some purists will tell me Coleman designed it that way for a reason and I'm sure they did, I'm just interested in what is possible.
Will from TN.

Quickly becoming a stovie.  Love HGPs, Military and Utility Burners, HeatMasters and any other gigantic Flame.  Always interested in 523s, HGPs, and 23x
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wiljen
Just figuring someone already did as it seems rarely is any idea truly new around here.  If there isn't some thread out there already where somebody documented it, I likely will try it out.
Will from TN.

Quickly becoming a stovie.  Love HGPs, Military and Utility Burners, HeatMasters and any other gigantic Flame.  Always interested in 523s, HGPs, and 23x
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JustOneMore
http://www.colemancollectorsforum.com/post/extra-burner-rings-5346509?highlight=adding+burner+rings&pid=1269093047
If it has a flame, I like it.
While it is certainly nice to find what you collect, in reality you must collect what you find.
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wiljen
Thanks, I knew that had to be out there somewhere but my search-foo failed me when trying to find it.
Will from TN.

Quickly becoming a stovie.  Love HGPs, Military and Utility Burners, HeatMasters and any other gigantic Flame.  Always interested in 523s, HGPs, and 23x
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Glen65
I have put two main burners on my 4Ms and a Canadian 414, the solution is to find a restrictor plate with a hole about 3/4", I am not sure the model of stove I took them from but they do seem to be in a lot of the 70s to 80s stoves.
I did this first on a 4M and did a boil test with two identical pots and they boiled at exactly the same time, and when I use a griddle on the stove it heats evenly according to my IR thermometer even on a simmer (secondary burner wide open).
If anyone is interested in more details I can provide more information.
Enjoy 😁
 
Glen65
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StanDahl
Gary wrote:
 WHY are the burners not centered front to back?
I've always wondered that too. It got worse as time went on, early Coleman stoves had centered burners, then they began migrating forward in the 30's when the mixing chamber stuck out the back side of the main burner. It got worse in the 60's when the 413G and 426D came along, those burners are really close to the front of the case and there's even a big gap behind the mixing chamber. I don't know why. It's almost as if the burnt case is a feature, not a bug.
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StanDahl
Part of the problem here is the nature of the Coleman burner design. The auxiliary burner feeds off of whatever fuel is left over after passing the main burner. The fuel/air mixture will go where there is less resistance, and the main burner is bigger and closer. If the main burner was restricted more, maybe there would be more fuel available to get to the auxiliary burner? [Oops - Glen already wrote the same thing, but with actual results 👍]
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outlawmws
I think the reason for the offset to the front is to allow for a larger skillet.  Pots are generally not an issue, but skillets and round griddles are.
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Coleman Blue's 243's #341 - 275 Appreciation Syndicate member 0242
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“A Human Being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, give orders, take orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook  a tasty meal, fight efficiently, die gallantly.  Specialization is for insects.”            - Lazarus Long


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StanDahl
Yes, that has occurred to me too, since the later stove lids don't fold back, so whatever is sitting on the grate has to be pushed forward, but this began happening years before that with the 413D and E. Since those lids fold back, the stove top is wide open. 
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