Hello everyone, I am looking for precise specifications such as the maximum duration of the tank for this type of stove (8r vesta...). Thank you for reading me and for your future response.
Yes, that's it, you're right. I would like your feedback on runtime. runtime on a full tank at minimum power on the 8R. for exemple my stove (8R) have 2 hours runtime, and with this same setting i can heat water at ~140°F in 6 minutes. If i take a similar tank capacity SVEA 123 sade that it can burn 45min max Thank's in advance
I'm not entirely sure what you're trying to achieve, but your stove is now producing a lot of carbon monoxide. This will be the case with anything other than a pure blue flame. The correct fuel for a No.8r is something similar to naphtha, such as Coleman fuel, Aspen 4T, perhaps a member in your country can advise. Automotive fuel is no longer suitable for these stoves due to the ethanol content and other additives.
Thank's for reply. Yes, I am aware that yellow flame is monoxide. I am actually trying a fuel that seems not to have existed when these stoves were produced...
There are threads on this site about running the No.8r on alcohol, which would be a good starting point. Nothing I am aware of regarding using a fuel anything like you are trying. You would need a different sized jet at least, and bear in mind the safety valve is designed to protect the stove when using the correct fuel, and may not be safe with other fuels.
If I have to explain my modification : it would seem that the one stainless steel grid surrounding the bell accelerates the arrival of air and eliminates the monoxide particles, the one under the hat seems to burn the monoxide a second time, did I answer ? This burner is silent ! not fully powerfull at this time
Yes I am currently using a 0.3mm nozzle, I should receive a batch of 0.5 to 2mm, I will keep you informed of the results
So I put the cap back on. I adjusted the top grid incorrectly (hence the lack of flame in one spot). This creates an escape route for the carbon monoxide. So at this point, I definitely have carbon monoxide escaping (invisible). I'm still at 85% ethanol and 15% gasoline. (here 0.65€/l 0.56GPB/l) Third semi-silent mod (original cap position) Réglage très fin
Last test with the latest configuration : Honestly, no carbon monoxide smell (it's certainly present, odorless, and invisible) - I confirm the runtime of full tank is more than 2 hours 30 minutes (between 2 hours 30 minutes and 2 hours 40 minutes)... During this test, I heated water to 60°C (140°F) in 5 minutes...
So, with a normal setting, I reached 288°C (550°F) in 1'35 minutes on a plate that didn't have any soot (flame side)... For now, my tests are for endurance; I don't claim to be more efficient in terms of power.
I have always assumed that any burn time rating was associated with a real legitimate flame. Candle flame does not count.
I wonder too, purpose of a candle flame or real low flame? What was the question? Seems poster answered their own question if it was a question. Duane
Adding the screen around the burner bell restricts the airflow not accelerating it. The only way to "accelerate" the air would be to run a long chimney like in a lantern to increase the draft. Bigger holes in the bell would add air. The screen under the burner bell might redistribute the fuel air mix more evenly, but again it's restricting the flow. If the poster is looking for longer run time, turn the flame down. If the poster is looking to run alcohol, then there are better methods. If this was an experiment for the sake of an experiment, I get that, but I don't see any benefits of modifying the existing stove in this manner.
Honestly I can’t answer your question, I have never put a stop watch next to a stove..any of my stoves. I just enjoy them as is.
