Less than 4 inch?

Guess I am never satisfied. Has anyone scaled RMHs even smaller and configured them as a free standing fireplace insert? The exhaust gases flow out the existing chimney?

It would be interesting to see a RMH using the clay masonry bricks popular in south america -- http://c8.alamy.com/comp/DYFHAT/clay-masonry-building-blocks-DYFHAT.jpg
 -- as an internal insert too.

Hi John Mcginnis.

Well, since your post didn't have much to do with the minie mouse.  I split it. To answer your questions.

There have been attempts to make 3.5 inch J tube rockets. These don't work very well. I mean, some might do. But the amount of heating given by such a small heater is near nothing.

As chimney inserts, there is some guys who tried. And i have drawn few sketchups in order to use big fireplaces as bells.

I kind of walked JRL through this one.

http://donkey32.proboards.com/thread/1274/rocket-heater-fireplace-design?page=9

Here i was discussing sometthing like this with Kevin Prata

https://permies.com/t/31382/Rocket-Stove-cast-riser

Drew this for him https://permies.com/t/40/31382/Rocket-Stove-cast-riser#246585

This guy was thinking about it too https://permies.com/t/26794/Split-level-house-RMH-prospective

Another one, who went astray

http://donkey32.proboards.com/thread/2076/fireplace-batch-box-conversion

There has been this one too https://i.pinimg.com/originals/92/ba/f9/92baf934c59331d9a5f20939af407c87.jpg

Can't find the thread on here or at donkey's tho.

But with Peter's latest développement. It might become even easier to retrofit an existing fireplace.  


https://permies.com/t/71823/batch-core-riser





I used the same kind of bricks as you are speaking off in this build.

http://donkey32.proboards.com/thread/1817/starting-next-build

Anatone,

Thanks for the reply. Based on your observation this might as they say 'be a bridge too far'.  Shame but fire is not to be trifled with.

One other thing I have noticed:

There is a lot of similarity with many of the RMH like designs with the Swedish Kakelugn tile stove.

Thanks again.

On the kachel type.

Robert built this one.



But the photos are gone from donkey's site.

http://donkey32.proboards.com/thread/1464/rocket-kachel-ofen?page=1