Rocket mass heating green house.

I love to see a good design, and a couple that work as a team...

Hey Mart. Cool video, I like the design too.
But for me it doesn’t qualify as a rocket.
I think the most important feature of a rocket is an insulated burn chamber that allows the temperature for complete combustion.

This looks like a regular wood burner to me.

Benjamin Dinkel wrote:Hey Mart. Cool video, I like the design too.
But for me it doesn’t qualify as a rocket.
I think the most important feature of a rocket is an insulated burn chamber that allows the temperature for complete combustion.

This looks like a regular wood burner to me.

It does have the butt warmer

I would agree that the temps probably do not get as high as a standard rocket J tube design.

The burn would not be as efficient....

That said,  one must wonder what materials there are to build with in Korea...     they may be limited.

There might also be dangerous creosote build up with the temperature not being sufficient for complete combustion. Also not enough turbulence.

Korea is a highly industrialized country. If they have the material for making underfloor heating (the pipes they’re laying) I’m sure they could find some refractory brick and expanded clay or similar high temp insulation.

Hi Mart
Nice video, they have built a very nice heater.
As Ben pointed out, it is not a rocket design at all, so it will likely have ash and creosote issues.
However, I'm sure the builders are more than happy with their warm greenhouse.
If they need to pop the top and clean it out once a season, then they will learn how to do so.
Perhaps, they will learn how to build a batchbox and upgrade to a fire-breathing dragon in the future.

Timing apparently, as at first they are showing skillet about 2' from fire box, hot enough to cook eggs,  Sitting on what kind of material?

And then not long after that, perhaps 8 foot further, someone laying on the tunnel top,   At least they are not doing both at the same time.

As it has been mentioned, I also have my doubts that with this much ISA, that a creosote  zone would not be created.  With one exception, and I just couldn't tell, if this is a fan fueled fire?  Then perhaps the fire would be hot enough to "burn/consume/combust" the creosote concerns.   So a lot of "if's" would seem to go into this.

I don't I would start this, until I know someone like Peter V has modeled, tested and documented the end results. Right down to the size of fire box and length of tunnel.  

Most but not all, do not have the luxury, to build, then rebuild, and then rebuild again.

But of course the " how it was built video was well done"   Always inspiring these build video's.

Very nice build, definitely not a rocket anything, and will definitely build up creosote. I think it could be improved just by giving it a port so the fire is more contained in a firebox rather than just wandering down the length of the tunnel. I don't think the lack of a low exhaust at the end is a severe issue, as the heat does all encounter masonry and the layout makes for good draft. A damper that can be lowered from the ceiling a foot before the exit once the fire is going would probably improve the heating capacity.