502 on high

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MattH
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502 on high

#1

Post by MattH »

I’m new to 502 stove. Was testing my stove to make coffee with. The flame didn’t seem that ferocious like a suit case or a 530 on high. It took 15-17 to boil the 9 cup coffee pot. This is high, does that seem right?
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JimL
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Re: 502 on high

#2

Post by JimL »

As awesome as the 502 is, it's not a powerhouse at 4500 BTU, so your time is probably right, if not better than normal.

When perking coffee, I use a more powerful stove to heat the water and then switch to the 502 for perking since it's so adjustable, down to a low simmer if that's what you want.
-Jim

I threw a boomerang a couple years ago; I now live in constant fear.

Flammable liquids, open flame, what could go wrong?
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Stovie
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502

#3

Post by Stovie »

Interesting, what's the limiting factor or chokepoint governing this model, is it simply a matter of jetting or some other crucial intake or air tube orifice diameter? There are some pretty amazing handy & knowledgeable people here, wonder if it's possible, or if anyone has "hot rodded" this stove for a bit better BTU output.
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stoves1234
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Re: 502 on high

#4

Post by stoves1234 »

I haven't heard of anyone souping up a 502. Other factors that affect any stove's performance are wind and whether or not a windscreen is used. As Jim says, the 502 isn't the hottest of Coleman stoves. Take a page out of his book and get a 530 or M1950 to boil water. Or, better yet, a 500.
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Stovie
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502 on high

#5

Post by Stovie »

No, I mean without regard to wind and things like that. There's obviously a design reason why reason it won't spool up to as high a BTU output. I wonder what it is?
Everybody wants to drive the train, nobody wants to shovel the coal.
Majicwrench
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Re: 502 on high

#6

Post by Majicwrench »

Pump that thing up. It'll go stronger than that.

But like was said, tis not a pwerhouse like a 508.

Sure, it wasn't designed to do 8000btus. Would need more air and more fuel.
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Re: 502 on high

#7

Post by JimL »

The burner on a 502 is the same size as the burner on a 500. However, the 502 runs extremely hot as it is, so much so, it will self pressurize. This is not a stove I would think if trying to get more performance out of it.

And yes, the the tip orifice is larger on the 500 as it's delivering quite a bit more fuel.

I documented the temps of a 502 a couple of years ago. If interested, I can dig up that info after the gathering this week.
-Jim

I threw a boomerang a couple years ago; I now live in constant fear.

Flammable liquids, open flame, what could go wrong?
zoomkat
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Re: 502 on high

#8

Post by zoomkat »

Perhaps somebody with a good running 502 can fire it up and take some pictures, which at times can be worth a thousand words.
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Tgarner01
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Re: 502 on high

#9

Post by Tgarner01 »

Image
Toby Garner, from SW Missouri
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Deanofid
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Re: 502 on high

#10

Post by Deanofid »

Toby's pics show the 502 getting quite hot, although maybe there is just not a lot of heat to go around. I.E., a 500 has a larger generator and a different air intake. However, those 502s in Toby's pic show all of them heating the steel grates to red hot. That's around 1600 degrees. There's just not a lot of flame (burner size or gen orifice size) to back it up.

I have no problem boiling water for tea or coffee on my 502. Yes, a 500 does the job faster, but it weighs quite a bit more, too.

Wind or breeze makes a big difference, too. A little breeze on a 502 keeps it from getting hot on the pot.
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Tgarner01
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Re: 502 on high

#11

Post by Tgarner01 »

In my opinion I think you should get you an early 400 stove... Smaller and lighter than the 502 and packs much more BTUs than a well fettled 500 in my opinion (only advertised as 1000+)

Image

They simmer with the best of them as well.

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Daryl22
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Re: 502 on high

#12

Post by Daryl22 »

I have used several 502's and have 2 at the moment. Have found some burn hotter that others. Should see red hot grill like Toby. Can 'hot rod' them by adding an extra burner ring. Also if you have a slow stove might check that spring in the fuel pick up tube. Take care getting the burner ring off, you can very easily make a mess of them. Large 'C' vise grips seem to do the less damage. Daryl sunny Socal
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Re: 502 on high

#13

Post by TwoCanoes »

Here is a boil test of several stoves, including several 502s. Boiled 26 oz of water in a stainless steel, covered pot. One of these days, I'll do a systematic fettle on the 1-70 502 to figure out what is causing its poor performance. But, like Toby says, if you want a fast boil and good simmer, it's hard to beat an early 400. By the way, I use the 425C (bottom row of the test) more than all the other tested stoves combined.
March 2021 test.jpg
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JimL
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Re: 502 on high

#14

Post by JimL »

>>Can 'hot rod' them by adding an extra burner ring.

I did that once and there was a trade off, but I can't recall what it was. I'm thinking it might have affected it's simmering ability. Whatever it was, it was severe enough that I removed the extra ring when it cooled back down.

I think Coleman has done an excellent job engineering their stoves and lanterns. Yeah, I know, the 501 was an exception, but dang it has a beautiful flame pattern!
-Jim

I threw a boomerang a couple years ago; I now live in constant fear.

Flammable liquids, open flame, what could go wrong?
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Emorr123
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Re: 502 on high

#15

Post by Emorr123 »

501 flame pattern
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