Heat Exchanger Pots- What is inner diameter of heat exchanger?

The inner diameter of the heat exchanger on my Jetboil 1.5 l pot is 4.75 inches. I use it with the MSR windpro. The windpro supports are wider than this, but they can fit in between the folds of the heat exchanger. Sometimes it gets stuck a little bit, but it works well enough for me.

Jim:

If you can hide the purchase from your wife, just get a Reactor Stove with the 1.5L pot. I LOVE, LOVE, LOVE mine. I usually have one or both of my sons with me and boiling water for more than one person is a dream come true with the Reactor. The water is usually boiling before I can get the coffee in the cup or the rehydrated food bag open.

The reactor is slightly more expensive but I used one fuel can on 10 day trip in the wrangells. The efficency is amazing! I will carry the extra weight of the stove from now on (can cut other places)

>I'm thinking of getting a heat exchanger pan to use with a couple different stoves. In order to get the best effect in breezy conditions it seems prudent to have the pan bottom rest on the stove supports, with the heat exchanger hanging down to act as a bit of a windscreen and capture as much heat as possible. (this puts the pan bottom at the designed position for the stove)

Which brings up the question- what is the inner diameter of the heat exchanger? I'm condidering the Jetboil 1.5L pan but will also look at others.

Hi Jim,

You might be interested in this post on JetBoil PCS and GCS pots in wind http://bushwalk.com/forum/viewtopic.php?f=15&t=7657 While the PCS pot is OK in wind the GCS is not.

Tony

You might get very good result with a well built wind screen only. If you make a tube of metal foil slightly lager than the pot that extends from the top of the pot to about an inch below the stove burner the hot gases from the stove would travel up the side of the pot. So the pot would be heated from the bottom as well as the top. In this MYOG post the resulting wind screen performed about as well as a jet boil.

http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=45927

>You might get very good result with a well built wind screen only. If you make a tube of metal foil slightly lager than the pot that extends from the top of the pot to about an inch below the stove burner the hot gases from the stove would travel up the side of the pot. So the pot would be heated from the bottom as well as the top. In this MYOG post the resulting wind screen performed about as well as a jet boil.

http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=45927

Hi Steven,

I have run similar tests to the above thread and had different results, check these results out http://tonysbushwalking.wordpress.com/2010/08/20/jetboil-pot-vs-normal-pot-using-an-alcohol-stove-3/ and this windscreen heat flow measuring post, http://tonysbushwalking.wordpress.com/2010/08/22/some-stove-windscreen-test-results/ I have some doubts about if any heat is actually absorbed through the sides of pots, especially with a stove that is set properly.

Tony

Tony-
Funny I had asked you a question in that thread regarding your mods but didn't read the test results.

We also discussed the issue two years ago.
http://tinyurl.com/Jetboilwind-2009
I had forgotten.

>Funny I had asked you a question in that thread regarding your mods but didn't read the test results.

We also discussed the issue two years ago.
http://tinyurl.com/Jetboilwind-2009
I had forgotten.

Hi Jim,

Thanks for that, I had also forgotten about that discussion, I know I have discussed this topic a few times before, the same with "time to boil vs efficiency".

Here are a few photos of what I did today with a JetBoil pot and a Kovea Supalite stove, the pot and stove are from previous projects. I have not fired this system up yet, also I must add that this is a prototype, the finished stove/pot system will be a bit different.

Tony