Rocket Mass Heater in a tiny space??

As of last night this forum and Paul's pages have got my immediate electric heating need answered for this winter BUT...

I have been intrigued with small rocket stoves for a while and would really like to build a Rocket Mass Heater in my tiny Hut.
It's 225 sq ft and I live in it full time. I am most comfortable at about 80 degrees so I need a "free" heating solution. I have just this summer
sealed and fully insulated my roof with R-19 and CDX. We also cut down a 9 trunk HUGE Myrtle tree so by next winter I will have enough cured
wood for my lifetime.

My question is... Is my Hut too small to contain a large enough "mass" part of the heater to hold heat??

I have 2 areas that are about 4' that I could possibly put the heater. The design I loved was Paul's Wood Sided Heater. It looked like something
I could easily make but the video seemed to stop before he found out if pea gravel worked better than sand. I live on the Oregon Coast so I have a lot of free sand!

Could I build an efficient wood framed RMH in 4' of space??

Is there any more detailed information on Paul's Wood Sided RMH. I just found this all at 1 am this morning so I haven't had time to research much.

Any ideas or help would be appreciated!

Thanks,
Arlene

Arlene Meyer : Welcome to Permies.com, our sister site Richsoil.com, and a Big Welcome to the Rocket and Wood stoves Forums. With over 27,000
Fellow and Sister Members world wide we are the largest English speaking Permaculture Group in the world. You can come here 24/7 and talk to someone who
wants to talk about what you want to talk about.

Lets get you the whole set of keys to unlock the treasures and then get you started on Becoming a Rocketeer! look at your name space and then L@@K at mine !

At the top of the page to the right of the Permies revolving sun is the Permies Toolbox, locate the [ my Profile ]space and clickon, this will take you to a new page
where you will be helped to enter the information you feel comfortable with and still get you out there to find/help them find fellow members, even perhaps a near
neighbor with Cob or Rocket Mass Heater RMHExperience !

Also in the Permies Toolbox is a link to our mighty search engine, find and clickon the [Search] space, and on the next page you can enter search term like weight
of a 6'' Rocket Mass Heater! , set your search for the rocket forums (under energy) and at the bottom of the page make sure your search term shows in the box
and select a Search -ether in the Web or within the Tens of Thousands of Articles here at Permies!

I hope you have expanded your search to theTinyHouses Forum in the building section !

Good news the RMH is a permitted Masonary Heater in Portland O., and adapting your build to meet any local codes is doable !

Here is where I send you to Rocketstoves to download a PDF Copy of The brand new 3rd Edition of Rocket Mass Heaters, With over 100,000 RMHs
built word wide, this is the book that started them all, And 95% of all the new 1st time builds (that Worked) were made from ''The Book''.

With ''The Book'', you can come back here and Know you are using the same basic words to describe Your RMH, its sizes, shapes and orientation of the parts to
the whole and to each other! Your fellow members will testify that this book is one of the best buys they ever made saving them Time, money, and frustration, in
helping them select and find the correct parts,and simple tools for Your build, After you have read this book you will Know that this is the project for you!

Get 'the book' and keep searching the Forums and Threads here at Permies.com. If there is a Rocket Mass Heater in your future (complete with your own personal
'House Dragon' ) we will help you find it ! For the Good of the Crafts ! Big AL

Could this work: