Search on the net for how much heat the different gasses/liquids can deliver. I think the measurement unit is BTU, then find the prices and its an easy calculation to find the cheapest fuel compared to efficiency.

BUT cooking fuel is one of the lesser expenses, so who really cares ;-) normally the problem is finding the fuel, so you take what you can get.

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Poul
May you enjoy peace and good health !

dried camel dung works a treat no need for a stove just light and whack a dough ball in their and voila crusty pooey bread - lovely stuff

I to use a coleman dual fuel, I use unleaded as well, but also never cleaned it !
What is FI cleaner Ted ?
Cheers
Paul

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....rather Die Living.....than Live Dying !
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Could be Fuel Injecter Cleaner, mainly for cars. Sounds like a good Idea.

Yup. Fuel injection cleaner.

An Aussie guy, Ken Duval told me the trick.

It burns VERY hot violent and blows all the shit out of the generator. I can't confirm that it actually works but my coleman is 5 years old, been ran only on cheap unleaded and is still burning strong.

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Did some trips.
Rode some bikes.
Fix them for a living.
Can't say anymore.

If you really want to save on fuel when cooking, use a pressure cooker. They typically save 50% or more.

:-) (you definitely like cooking!)

An MSR cook set has a 'heat exchanger' that they claim improves the efficiency by taking the hot air that other wise blows away and sending it up the sides of the pot. It also is in contact with the pot and the air so it helps get the heat out of the air and into the pot.


Other factors to improve efficiency are
Using reflective screens both around the pot and on the ground. Some cook sets perform better with wind, others don't.

Weight -

The gas canister stoves are light ...if you only have one canister. Most people have two, one in use the other for when the first runs out.
The Coleman feather light (422?) weights more than one gas canister and gas stove, but less than the gas stove with one full canister and one half used. Add to this

the convenience of having fuel availability in most places
the ability to fly with it

I think the Coleman stove wins out. I find mine is easy to light once primed the first time, the next day I can light up with very little priming! That continues until I have to empty it for flying. For flying I find it best to empty most of the fuel, then burn the last bit as this removes the stuff in the pipes (that does not easily evaporate if you simply try to empty it totally. Camp.
As regards simmering, the stove does it much better than a MSR GXK hat I also have. And it is a lot less flare on priming(and the MSR wants that every time after you disassemble it for transport or an overnight camp.

The costs of heating are usually a lot less than the food!

Magic-Flame next generation ... most efficient wood stove ever
invented ..... with optional alcohol burner, but not needed.

found here: Magic-Flame NG Hobo-Stov Testwinner

We have purchased many, as income stream while touring..... it works.

xfiltrate

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Motorcycle Parking Buenos Aires, Argentina
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I used to use a Colman Multifuel and it was great and lasted a long time. But I was in Arabia and could not get a replacement generator (that icky that pre-heats the fuel). So I went back to basics with my old army stove which burns alcohol, I have two. I got a honey stove and an espirit holder, so can cook full meals and they pack down very small. I even made a burner out of a Axe deoderant can. Not as good but it worked.

I also have a small table top BBQ I got in Salta, Argentina. Great for charcoal/wood fires when I want, to save on alcohol and can find the fuel, it straps onto my top box perfikt.
I can use the BBQ as a stand /windbreak for the alcohol burners and I also have a plate for the BBQ to act as a food warmer.
The honey stove (S/S) will also burn just about anything including plastic but that is a bit hard to clean off.
I know this sounds a bit much, but I live on the road for anything up to a year when travelling.

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The Gypsy
Second star on the right.
Then straight on till morning.

Mostly my eyebrows using petrol in that bloody awful Coleman I used to have!

I`m too can now report my experience with the coleman unleaded, after our 2.5 week island trip and using it daily (wildcamping).

We start with a full tank (coleman fuel) and had the same experience than bevore in africa:

It need his time 3-4 mins to produce a blue flame (yellow flame will produce more soot) - but also then you have to handle a dirty soot bottom.

The power is ok, not like gas but quite ok to cook on two flames.

After the tank was empty we use the unleaded fuel from the gas station. With that fuel you will need 6-7 minutes before the yellow flames get blue. Also it produce more dirt than on coleman fuel.

If you use the coleman mit yellow flame, the bottom of you pan will be black of soot also when you use it once, will makes everything black what get in touch, finger, towels you use to dry them, every place you put will put it. To wash it, need time, hot water and effort.

We dont love that device, but we also dont find a device who is that handy for a mobile 4wd overlander kittchen setup.

It is bulky, but if you try to replace it with gas - you end up with more space used, or a less practical if you look to a windshield and so on.

For extended travelling we will carry not just a spare generator, we will carry a complete Tank/Pump/Generator Combo. Remember that our first generator died in africa, after 3 weeks using (twice a day).

As you see, we dont love the device - but currently we didnt find a way arround the coleman. But a way to live with it ;-) For Weekends the soot stuff dosnt hurt. On extended trips it is uncomfortable to keeping your stuff clean, your towels clean.

Of your Kitchen-Setup is not mobile, you did built a kitchen in your drawers at sample, i would intend to use a campinggaz gas setup.

The blue gas bottles we did find everywhere on remote places, from asia till africa.

Surfy

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About Overlanding, Travelogues, Equipment
Trans-Africa over the west coast

After that f**** Coleman died after 3 weeks on our transafrica.... It makes still problems...

During my Panamericana the pump unit fails, a generator fails, a pump unit leaks...

Have wrote my experiences and how to solve it in my blog...

4x4tripping: Coleman dual flame, dual fuel repair, spares and howto

I`m still not happy with the unit, but don't see an alternative around. Meet again many travelers who use gas, and no one runs out of gas. Maybe it is less hassle to obtain gas than to repair the coleman unit again and again? I guess the build quality of the colemans don't got better over the time....

Surfy

__________________
About Overlanding, Travelogues, Equipment
Trans-Africa over the west coast

I never even thought about a pressure cooker....that's a great idea. Will have to look up some recipes for the old pressure cooker now.

__________________
"Loud pipes save lives."
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I have a single burner gas stove I bought for when I'm on nights out in a truck. It is quick, easy and clean but when used outside in cold weather the gas cylinders don't appreciate it.

I've had an MSR multi-fuel stove for many years now I've used for hiking and now started using when out on the bike. It's never let me down regardless of ambient temperatures. With one exception I've only ever run it on unleaded petrol but that is readily available pretty much anywhere - especially if I'm using it in the bike anyway.