Tyler Morrison

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since Feb 09, 2015
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Edmonds, WA
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Recent posts by Tyler Morrison

Alexander Rijkee wrote:Thank you for this very informative video!

I have some questions about the design, Is this the right tread for that? Of do you want to keep this confined to the DVD about the design instead of the design itself? If so please direct me to a more appropriate tread...

The build of the oven is very elegant. I love the way you use the treads in one of the inlets to mount the latch. What I was confused by is the way the outer barrel is cut. The lengthwise cut is placed at the top and then requires quite some fiddling to fix and make gas-tight-ish again. Why not do that at the bottom where you have to fiddle around to make the entrance for the heat riser anyway. presumably the hottest gasses got to the top where you want the outer barrel to be as sturdy as possible. Any reason I am overlooking for this choice?

While the oven is a thing of beauty is also looks absolutely massive. How would this design cope with downsizing to 2 30 gallon barrels? How much smaller would the J tube have to be to not overheat it?

Kind regards,

Xander



Hey Alexander,  

Sorry it has taken so long to answer this.  It's been about 2 weeks since I've been at a computer.  

Make sure to complement Tim Barker on the latch idea.  It's his idea (like all but very small details of the entire oven) and he's done a great job!  

Regarding the outer barrel and the placement of the extra bridge of metal to span the gap made by cutting it lengthwise, the placement of that bridge material is a little arbitrary.  I originally felt as you did that it would work best on the bottom, but what have found so far is that trying to deal with fitting that bridge material on the bottom in the same place as the opening for the heat riser ends up being a real pain.  Another reason I like having the bridge material for the outer barrel at the top is it seems stronger to me.  When I tried to put it on the bottom, all the weight of the oven and other materials ended up putting pressure on that bridge and putting stress on the connections, which I didn't like.  One of the beauties of this design is that there is enough heat from the J-tube that it isn't necessary to worry about saving every BTU humanly possible, and the design is such that you don't see a detectable difference in oven temperature based on the placement of the outer barrel bridge.  Since it seems structurally stronger on top, that's where I like to put it.  But the oven should still work fine regardless of where you choose to be best on your own oven, so feel free to play around.  

Regarding scaling things down, I don't have any direct experience on that myself, so everything from here on is guess work on my part.  It seems to me that it ought to work ok, but have some extra challenges.  You still need space around the inner barrel for exhaust to flow without getting choked up or blocked, and you will still need insulation around the outer barrel that will be the same thickness as for the larger version.  So It may not end up looking all that much smaller (I haven't measured anything out on that, so I might be surprised).  I'd have to check on a few things and talk to some colleges about scaling down the J-tube.  It might be easy, or it might be tricky, I haven't tried it.  But as the J-tube is already pretty small, it might be easier to use just run it with less wood in it instead.  

I hope this helps.  

Best wishes,
Tyler
5 years ago
Thank you for putting this together and making it available!  I've already purchased the ebook.  

But I was wondering, is it possible to buy a hard copy as well?  It's be nice to have a physical version on hand while working on building one of these, and I'd love to put a copy in the library of the center for sustainable living where I work.  Are there currently any options for purchasing a printed version?  

Best wishes and thank you again!
7 years ago
Thank you Bill. I'm still a bit new on these forums, so guidance and suggestions are always appreciated!
8 years ago
Rocket mass heater workshop by Ernie and Erica in Woodinville WA!!!

We will be hosting Ernie and Erica (http://www.ernieanderica.info) for a weekend rocket mass heater workshop November 6-8 at 21 Acres (an organic farm and center for sustainable living http://www.21acres.org) in Woodinville WA.

The workshop will include:
-Ernie & Erica's fire science class
-Instruction on how RMH's work and construction of a basic model
-Hands on experience building a rocket mass heater for use in a new greenhouse.

The cost of the workshop is $250. Or $225 if you sign up before October 9th.
A food package is also available for $80 and will cover meals and snacks for Saturday and Sunday. All food will be local, organic, and seasonal.
(we are trying to keep cost from being a barrier to people who want to come, so we wanted to give people the option to opt out of buying food)

If you are interested you can sign up by:
-Registering online here http://www.eventbrite.com/e/21-acres-rocket-mass-heater-workshop-registration-16853891443
-Calling 21 Acres directly (425) 481-1500

If you have questions please don't hesitate to call or write. You can reach me (Tyler Morrison) by:
-Responding to this thread
-Calling 21 Acres (425) 481-1500
-Emailing me directly at Tyler@21acres.org

We are capping attendance at 18 people, so if you're thinking of coming it's a good idea to act as soon as you are able.

Please see the attached flyer for lots more details!

P.S.
I'm still new to using these forums, so if I've stepped on toes or breached protocol in any way or please let me know!!
8 years ago
Rocket mass heater workshop by Ernie and Erica in Woodinville WA!!!

We will be hosting Ernie and Erica (http://www.ernieanderica.info) for a weekend rocket mass heater workshop this July 10-12 at 21 Acres (an organic farm and center for sustainable living, at http://www.21acres.org) in Woodinville WA. The focus of this particular workshop will be building a rocket mass heater for our new greenhouse.


The cost of the workshop is $250. A food package is also available for $80 and will cover meals and snacks for Saturday and Sunday. All food will be local, organic, and seasonal.
(we are trying to keep cost from being a barrier to people who want to come, so we wanted to give people the option to opt out of buying food)

If you are interested you can sign up by:
-Registering online here http://www.eventbrite.com/e/21-acres-rocket-mass-heater-workshop-registration-16853891443
-Calling 21 Acres directly (425) 481-1500

If you have questions please don't hesitate to call or write. You can email me directly if that's easier for you (tyler@21acres.org). We are capping attendance at 18 people, so if you're thinking of coming it's a good idea to act as soon as you are able.

Please see the attached flyer for lots more details!

P.S.
I'm still new to using these forums, so if I've stepped on toes or breached protocol in any way or please let me know!!
8 years ago
It worked fine for me just now.

Using mac OS 10.7.5 with Safari 6.1.6
Yep, worked great for me just now.

I am using a mac running OSX version 10.7.5 and using Safari version 6.1.6
I think this looks really good. There aren't any problems or typos that I picked up.

It does a really good job of conveying an easy to follow progression of how this started, what your intentions are, and what the final product is going be. It gives people an excellent idea of what people can and should expect out of this, and that it directly addresses specific questions and issues that there is a demonstrated demand for and that nothing else adequately covers yet. While it is clearly geared towards people who already know about RMH's and are interested in them, it still has enough clearly spelled out information to spark the interest of people who have never heard of a rocket mass heater before.

I think it also helps that you've already demonstrated (and sited evidence) of your success in this arena before, especially for people who may not already be familiar with your work already.

Finally, I think your comments on being grateful for your kickstarter backers and wanting to provide them with all the perks you can will also work in your favor. Nice work on this! I'll be supporting it and spreading the word about it as soon as it goes live.

I'm keeping my fingers crossed for you!