Joshua Myrvaagnes

Two more wrinkles –

– The riser is more like 40 inches instead of 36. The burn tunnel was made too long, by mistake, so the builder compensated.

And then the barrel is more than 2 inches above the top of the riser, whereas Erica and Ernie’s book recommends 2 inches. That would seem to mean more turbulence and less heat transfer from the top of that barrel, so potentially more Heat would go into the stratification chamber? And then more out the chimney than we want?  The uninsulated part of the exit chimney feels like maybe 200°. The meat thermometer gives a reading up 130 Fahrenheit(but that’s not necessarily super accurate.)

Bump. AI is recommending that I put an extreme baffle in, is that to be trusted?  

Another factor that I should mention is that the rocket mass heater is downstairs a two-story house, so radiant heat maybe heating up here that is gradually conveyed upstairs overnight, such that the drop-in temperature in the downstairs room is more because of that, then a lack of performance. I can try putting the thermometer upstairs for a while to see how we’re doing up there, but I have been hearing some complaints of”it’s too cold up here”

So, asking for a friend...the rocket mass heater has only a twelve foot cob bench,, because of code reasons, and a 6" duct through that.  

It has an 8" j tube with an extra high barrel and extra large--65 gall, plus 8" off a second barrel, and that's in addition to the manifold.

But wait, there's more!  Act now and get half off your next bell.

There's a second bell for a stratification chamber (to compensate for the short bench) and this has been mostly covered with cob on the sides, about 2" .  (My friend is running out of clay but can get more in a few weeks).  The top has a tub of water in a big aluminum cauldron with a lid, maybe 20 gallons, it's squat and almost fills the whole barrel top with its girth.  It reaches temperatures of maybe 130 F after a burn.  

There's no cob hat on the first barrel but there could be...but it does have a metal "bonnet" of sheet metal curved over to reflect some heat back toward where it's needed instead of just heating the ceiling there.  (The ceiling has not been complaining about the cold).  

The bench gets only slightly warm.  The draft may still be too strong.  

The room goes back down to about 55 degrees rather quickly (ie overnight).  

The insulation situation between the first floor there and the. basement is still kind of sketchy--my friend has insulation but fitting it in around ducts and figuring out of how to remove ceiling panels has not yet occurred.

There is a crude baffle in the bottom of the exit chimney.  It could be more baffled.  (I, on the other hand, am almost fully baffled already.)

8" J tube with 6" duct shouldn't be a problem because of Charles's Law, the temperature has gone down from over 1000F to 300 by that point, and also because Uncle Mud said so.

I like to be able to cook on the top of the main barrel, including a tall pot of stew, but I'm wiling to let that go if I must, I could put a cob hat where there never was a hat.  (If you get that reference that makes me happy.)

What would you prioritize?

Do you agree that a baffle is helpful?

What else am I missing?

Thanks, team.

7” in. From Paul’s gesture it looks like he’s saying you put angle iron going one direction and then another layer of it across that, 90 degrees to the first layer. So forming a grid as viewed from above. That makes a lot more sense than the picture I had in my head from just listening to the podcast. And that’s more angle iron than I have, but I think some angle iron supplemented with the barbecue grill will do the trick.

https://www.youtube.com/live/qs-83fcwTWQ?si=blE1yJmUS6BzKvIH

I figured it out!  If I click on Paul’s YouTube channel and then click on “livestreams” it comes up.

Joshua Myrvaagnes wrote:Does anyone have a link to the YouTube live stream of this podcast? There are some visuals that would be helpful. Stones sitting on angle iron? Would a barbecue great serve as a reasonable replacement, how do you balance stones on angle iron, do you need to be able to levitate objects in order to accomplish this feat?

The search algorithm on YouTube is just not cooperative, I found out that there were about 5 million different people hawking different brands of wood stoves.  

Does anyone have a link to the YouTube live stream of this podcast? There are some visuals that would be helpful. Stones sitting on angle iron? Would a barbecue great serve as a reasonable replacement, how do you balance stones on angle iron, do you need to be able to levitate objects in order to accomplish this feat?

The search algorithm on YouTube is just not cooperative, I found out that there were about 5 million different people hawking different brands of wood stoves.  

ClimateChangersAnonymous.org

A resource that can help with sustaining motivation to move forward with living sustainability values (permanence values).

It is open to supporting cessation of any kind of polluting behaviors, whether local or global or atmospheric.

What you probably don’t want to do is forget about it till after the next windy day. Lesson learned.

What do you do with the ashy paper after? Is it still toxic? Burn again in rocket ? Erica and Ernie, help!

Mineral wool wrapped around  seemed to do the trick, though it released a lot of toxic stuff into the air.  Next time I’m going to do the paper clay layer first and then put the mineral wool over that.

They’re not super specific in the book about how thick of paper should be, but I think I should’ve put several layers of paper, one layer just seemed to dry out super fast and then burn.