Ben Tegra

Greetings from the UK!
We are now downsizing, bigtime.
Retired 22 years ago.
Spent 21 of those years helping our bewildered posse to move to Linux, and now have -no- (zero) friends/rellies relying on me to maintain their pox-infested proprietary PC software, mostly because their kids have adopted Linux and helped to retrain the parents.
The world cannot wait 20 years for a fuel fix - but the RMH is (I submit) ready for the world.  Packaging is crucial to public acceptance - and the 'branding' is important, especially nowadays.  The UK has a slew of dumb regulations, with at least one loophole, which does allow the 'portable gas heater' to be sold and used in the home.  Plenty for sale on line.
I'm an engineer, need belt and braces, so would arrange for an exhaust vent, of course. These gas heaters (and cookers, often) lack effective vents.  It's still legal!
Here one can get air vents with flap valves that prevent blowback. Not rocket science to build one. Disguising your vent(s) as a window-aperture air conditioner should be pretty easy - a scrap aircon window box, eg.
We kept four wood-burners fed throughout a frosty Aussie winter, and the main difficult was logging and humping the tonnes of firewood needed.
Having built endless test cores (house bricks, hollow blocks, some clay slip, pottery, pyrex) and tested them (with inexpensive analysers) I am fully convinced that the RMH is potentially a boon to all mankind.
For the UK, portable cores will probably be needed, but with (say) a vermiculite board core and a 'hardened' firebox it need not be heavy. And with the truly huge efficiency, there is just not that much lumber to lug!
Plus . . . the cleaner exhaust is environmentally sound.  
Finally, things that look similar to the familiar usually succeed better, so I think it worth 'converting' existing wood burners to Rocket combustion at the very least.   Flames are cheerful! Have yet to try the excellent Peterberg open batch boxen, but plan to try.  That could solve the technical problems, and I have a couple of wood burners to try out ideas in the New Year, after we have moved. <sigh>
The 'selling' of ideas is critical to success of those ideas. People can be so bone-headed! (Me too) So, instead of persuading a potential client that "Rocket Mass Heating" is what they want, how about "upgrading your wood stove to the best available eco standard" as the sales message?  Or other verbiage?

Thanks to all for their published research and hard work that makes these fabulous stoves possible.  Ben

Heh!
Downundah here we abbreviate all kinds of stuff, and "Documenentaries"are oft referred to as "Docos", which makes sense  - but anybody called John is also likely to get called Johno...  which is not shorter,  <sigh>

More fundamental problem here.
It looks like excellent material, but it keeps stopping, with the 1990s-era circling-thing-of-frustration in the middle of the pic.

The Video Quality selector is indeed set to the recommended "Auto" but there is no smoothness at all.  U-tube and ABC sites working fine at HD with no hesitations, so for once I don't think we can blame Telstra.

Busy server perchance?  Will try again later...

Greetings!

Just spotted this whilst catching up on the daily-ish emails - belatedly.  My sewing experience is entirely
practical, usually non-clothing, and often on a small live-aboard sailboat.  Swallowed the anchor now,
and live ashore.

The single most useful non-needle tool for this is the "Palm" - a captive thimble/glove combination.

This is essential if one needs to drive a needle through six layers of heavy sail cloth - not unusual, and
it makes sewing lighter materials much easier, especially for arthritic hands like mine.

On Wikipedia: https://en.wikipedia.org/wiki/Thimble#Sewing_palm
DiY approach: https://www.instructables.com/id/Sailmakers-Palm-how-to-make-one./
Commercial one: https://www.youtube.com/watch?v=oshp1sj4Yuc

Palm Anecdote:
Back in the late 90s I was interviewing crew for our home-built Wharram catamaran to cross Biscay
and head South to Lanzarote in the Canary Islands.  A quiet teenager applied, and when asked
what Biscay experience he had had, he replied "Twelve years since my first trip as crew".

He and his father had had a legendary Biscay crossing in their Wharram cat when he was five.  
Signed him on as crew, pronto!  Never regretted it.

He then spent all his spare time aboard  repairing and upgrading
everything that he could, as we voyaged South over the coming fortnight.
Much of that was sewing.... Sewing anti-chafe leathers onto our sails,
and so much more -  beautifully done too.  

Not possible without a Palm, imho.  Leather and a wodge of sailcloth!

My own sewing is never beautiful, just practical - and as my joints fail,
I need a Palm for most things I sew. It really makes a difference.

HTH.