Morgan Superwool Plus non-ceramic fiber blanket for Rocket Mass Heaters

Morgan superwool plus is a completely safe alternative to highly hazardous ceramic blanket. Low bio-persistence makes this safe to handle.

#8 density 1″ thick x 24″ wide

Sold by the foot, can be pre cut to size for a 6 minute riser

$10 a foot + ship

Contact us at dragontech@blackfoot.net


About Morgan Superwool

Superwool Plus blanket, which is soft, flexible & withstands 2100F. Superwool is an alternative to ceramic fiber with improved health and safety attributes. Superwool products do NOT carry a GHS health hazard warning label. Alkaline Earth Silicate (AES) Wool.

Low bio persistence, Thermal stability, Low heat storage, Good resistance to tearing, Flexible and resilient, Immune to thermal shock, Excellent thermal insulating performance, Based on patented technology

Bottom line, this is equal or superior to other ceramic blanket / rockwool in insulating property’s. The big difference is how Safe superwool is in comparison.

No respirator or long sleeve clothing needed.

This product does not require a MSDS safety sheet.

About Dragon Tech

I’ve been building and using Rocket Mass Heaters since 2013. Finding products for any RMH build can be challenging. Finding parts for a batchbox RMH has been even harder as most require metal fabrication.  At Dragon Tech we can supply you with the materials you need to build your own RMH, from batch box doors to Morgan Superwool Plus to secondary air flow channels and much more!

That's great your supplying this high quality product to the rocketeers at Permies Thomas.

I have been using it now for about a year and love it!

I just makes the process of insulating your Dragon so much faster and easier - whether its making a 5 or 6 minute riser, as an insulating wrap around your core, as an high heat expansion joint for dissimilar materials (cob and metal), lining part of the inside of your barrel to control where the heat gets directed to, or just wanting to ensure sensitive areas don't get dangerously hot (like wooden walls or floors).

Someone said its the duct tape of RMH's and I agree. So many uses.

Highly recommended to anyone interested in longevity at an affordable price.

I am glad there is an alternative to ceramic fiber, having something that is this safe is the way to go.    Thank you for posting.


Mart

This could be a real game changer.  One of the things holding me back from building a RMH is the expensive ceramic fiber board, fire bricks, cob, and the pain of working with all of it.  An 8" HVAC duct lined with 1" of this would be a super quick 6" riser.

I'd be interested to know the technical specs compared to Ceramic wool or fiber board?

Are there any pictures from builds people are willing to share?

Thanks and keep up the innovation,

Hi Bryan;
Yes, the non ceramic fiber blanket has been a game changer!
This Morgan super wool plus, is pleasant to work with.
Not sure what specs your looking for?
Performance wise it should be identical to the itchy, hazardous to breath, ceramic blanket.

Ceramic boards perform just as good but need to be contained by bricks.

If you can find high temp insulated firebricks, they would be another good performer.

What were you hoping to see?  I have lots of pictures...

Bryan Paul wrote:This could be a real game changer.  One of the things holding me back from building a RMH is the expensive ceramic fiber board, fire bricks, cob, and the pain of working with all of it.  An 8" HVAC duct lined with 1" of this would be a super quick 6" riser.

Sooo 2 feet wide,...
that probably is the vertical length.
How long a piece does it take to line the inside of a 8" piece of HVAC?

2 pie R??

Hi Craig;
Circumference of an 8" pipe is apx 25" (8x 3.14= 25.12) So using 1" thick material  your looking at  23"  or so.
Here is a link to a previous thread when I built my first.     https://permies.com/t/95849/Working-Morgan-Superwool-ceramic-blanket

So can this material be used for the a rocket stove and integrated with the Rocket Pizza Oven? I am at the point now where I need to consider constructing the rocket stove component and I am not enthused about the expense of ceramic fiber board.

Hi Ian;
Superwool is perfect when used in a riser., although after heating beyond 1400F, a mask should be used if handling a used riser.

It is also perfect for wrapping a core, keeping the heat inside where you want it.
We use it for sealing to allow the expansion and contraction of dissimilar materials.
I'm not sure how you wanted to use Superwool in your project.
Perhaps you could elaborate for us?

thomas rubino wrote:Hi Ian;
Superwool is perfect when used in a riser., although after heating beyond 1400F, a mask should be used if handling a used riser.

Are you familiar with the rocket pizza oven build? What would a mod utilizing Superwool look like?

Hi Ian;
I'm sorry but I am unfamiliar with the rocket pizza oven build.
I use a Walker black and white oven for pizza making.
What part of the build do you want to use superwool in?

Ian Thompson wrote:

thomas rubino wrote:Hi Ian;
Superwool is perfect when used in a riser., although after heating beyond 1400F, a mask should be used if handling a used riser.

Are you familiar with the rocket pizza oven build? What would a mod utilizing Superwool look like?

Ian, I think what Tom is asking here,  is the fair question, is your Pizza oven considered a white or black oven?....  (with black version exposed to ALL of the Path of the fire?  Thus you would NOT want your pizza exposed to any fire gases that have also passed over the super wool or any type of fibrous material

Around here, we joke,  nothing is bad for you until it is,  finding out in 5 years or even 10 years is not good,  in this case, I wouldn't want to risk being exposed to "fibers or dust" from any kind of insulating blanket material.   Now having a white oven, fully heated by your "rocket heat source" but never exposed to air passing over the blanket is a different story entirely.

I probably will be corrected in that some products say they are safe to use,  but I prefer to not wait and find out later.  After all, asbestos was once approved almost everywhere.

thomas rubino wrote:Hi Ian;
I'm sorry but I am unfamiliar with the rocket pizza oven build.
I use a Walker black and white oven for pizza making.
What part of the build do you want to use superwool in?

I am hoping I would use it, in some way, in the construction of the stove (the J-tube) itself, surrounding the burn chamber, and lining a heat riser.  In the plans provided the stove, the  combustion chamber is made of fire brick and and ceramic fiber board.  The heat riser is made of ceramic fiber board cut to shape and held in place with a metal frame.  It would be much easier and cheaper to make one  where superwool is lining a round conduit such as shown here:

https://permacultureprinciples.com/wp-content/uploads/2016/11/The-drum-style-rocket-stove-sm2-677x1024.jpg

If you go to minute 1:44 of the trailer linked to below you will catch a glimpse of the j-tube as per the original RSPO plans.  Again it is made out of firebrick for the burn chamber lined on the outside with ceramic fiber board and fiber board for the heat riser all encased in sheet metal and supported by a metal frame.  I think I would still use the fire brick and combustion chamber design but would want to use a riser lined with the Superwool rather than the straight walled ceramic fiber board.

https://youtu.be/ElPBFH8oRO4

Ceramic fibre blanket and board is perfect for use in a standard high mass pizza oven because the product will be completely sealed between the cement dome and the outer casing.
However it is not suitable for use in a flame path when food is also present.

Fox James wrote:Ceramic fibre blanket and board is perfect for use in a standard high mass pizza oven because the product will be completely sealed between the cement dome and the outer casing.
However it is not suitable for use in a flame path when food is also present.

The design I am using is also sealed. It is a "white oven".

yes, what Fox said!  

Scott Weinberg wrote:yes, what Fox said!  

So it would be fine in the oven design posted above?

Ian Thompson wrote:

Scott Weinberg wrote:yes, what Fox said!  

So it would be fine in the oven design posted above?

Yes, with yours being a "white stove" and no worries about heated air coming in contact with your food in oven, it would appear to be a great way to wrap your fire box to get it to work as efficiently as possible.

Best of success.