temperature expectancy rocket stove

Hi, i built a small heater for my shed and it works so i'm happy but it smokes a bit in the start and it doesn't roar that loud as other stoves.

The temperature is 400c or 752f on the barrel i guess and other have 1000c.

Maybe my chimney is to small it is the same size as the inlet when its wide open.

Any ideas?

No it is not built like others I don't even have a box to think inside.




Inside photo





Youtube build film

Welcome to Permies Johan,

That sure is a fine piece of artwork you've made for yourself! Worthy of being sent on a mission to Mars.

I have a feeling that your rocket is not as rockety as you had hoped for due to all the 90 degree bends you have in it. There is so much friction with each bend and looking like its fairly small diameter pipe makes the influence of the boundary layer that much more impactful.
Being that its so different (but unique and cool looking) than anything I'm familiar with, I don't really have any further suggestions.
I'm assuming the 45 degree angle pipe is used as a hopper to feed pellets?

Well thank you Gerry.

Ok did not realize that it would be a problem, but apart from the sworly bit inside and the pipes from the stove there are only 3 bends, but 6 in the chimney so maybe that's why it only gets 400c on the outside.

The tubes on the sides are 2 convection tubes sucking in cold air next to the air intake and blowing out hot air next to the feeding tube.

The pipe diameter is 3.5 "stainless so yes it is small but free.

The 45 degree angle tube is gravity feeding wood now but maybe pellets later.

But its ok for now, it is warming up my shed, will be interesting to see in winter tho.

Built a pellet container for my rocket