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Mark Brunnr

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since Oct 04, 2012
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Recent posts by Mark Brunnr

He mentions liking to dig but just a couple hours per day and it took quite some time for the original smaller space. I plan to rent a small excavator to dig out my area (less than 3 years till retirement!) as it’ll be say 500 square feet and 4 feet down in a pretty flat space is around 74 yards of soil to move, not including the additional patio. Full of stone from what I’ve found, so renting the tool for a week will let me dig all that out plus put a drain trench around it all for the PAHS umbrella.

In theory, I could also use the excavator to lift the logs as well, as they will be full of water in the spring and too heavy to move by hand, even after sitting a couple months after cutting. Or if I can drag them chained to a truck then I could lift on end using a block and tackle. Plenty of hard labor, so trading money for time or in this case overcoming physical demand that one person can’t handle.
9 hours ago
At least with an Oehler design (unless I'm remembering wrong) and with a lot of earthen/cob floors, a plastic vapor barrier is put on the floor so radon would be rather limited. A wofati is built on/above grade so there's no accumulation. Being totally air tight for extended periods is pretty uncommon as well.
1 month ago
The bricks will absorb that radiant heat from the barrel, and could still get hot enough to slowly "cook" the wood in the wall, over time this makes the wood burn temp drop. Erica and Ernie's RMH Builder's Guide book suggests a piece of metal (I think) that stands off the wall by 2 inches (I think) so you get the insulation layer of air between metal and wall which can rise and keep the wall itself from being subjected to baking.
1 month ago
Edible Acres posted a video or two about heating a high tunnel with an attached compost pile and it kept the temps noticeably warmer. Getting a pile of sawdust or finer ground browns, that you could say add urine to regularly to keep it cooking, might work well. As long as it's ventilated it should work, but will certainly be variable in heat output.
1 month ago
I think it would be critical to either include full instructions or links to them and examples.  A person would read this book with the idea that there are people out there wanting to pass along land to someone who knows how to manage it as proven by completing there badges. But if a person isn’t already familiar with what to do they could be left lacking the knowledge.

I’d also focus attention on the idea that there are people out there looking for a steward to inherit land to prevent it from becoming more suburbs- where does a person find these people and is there evidence that more than a few anecdotal people are there? That kind of info, so the reader then has the mindset of proving to those land owners that this stranger is worthy of being given the land instead of their children. Also what legal challenges you may face as the children take you to court expecting their parents were conned into changing their will and all that.
2 months ago
pep
Perhaps it’s shipping to Canada vs USA where I’m at then.
2 months ago

Jason Broom wrote:

Phil Gardener wrote:Well, https://www.axner.com/superwoolfiber-1thicksoldpersqft.aspx lists it, and the price seems good, but their shipping estimates seem totally off target!  Are you looking at ceramics supply places?



For those still following this thread, the eBay seller may have heard our concerns, as he is now listing the Morgan Superwool Plus 1" thick blanket material in 24"x28" pieces for $34 with "free" shipping.

If I understand what was posted originally, two of those pieces would allow you to make a 48" tall riser with an 8" ID, inside of a piece of 10" stovepipe.



I just checked that link again, and the price/tax/shipping is still great, 2'x6' piece shows for $50 delivered including shipping and tax.
2 months ago
The state of Washington has a web page up tracking confirmed cases and deaths: https://www.doh.wa.gov/Emergencies/Coronavirus and also includes other info and FAQs.
2 months ago
Yes it is, we actually made one at the ATC last July at Wheaton Labs, it took more time fishing the fiber blanket out of storage than to make it. The interior isn't as smooth as firebrick, there are little ripples as you are fitting flat material into a circle, but it looks pretty good to me and was producing a clean burn. We were testing risers for upgrading the water heater for the showers. I didn't see any deformations or charring after use, and I'm assuming it's still sitting up there for use.

Cutting the blanket at 26" allows you to fit it in tight and tuck the cut edge together in an 8" pipe for a 6" system, and if a touch of trimming is needed to fit you can always remove a lot easier than add. My system will be 8" (dry fitted in the back yard for now) because my hand/arm is too big to fit a 6" system properly. Using large cutting shears/scissors is the way to go for me, over a utility knife. I'm now trying to find a reasonably priced source for insulated firebrick, I had a bunch of dense firebricks and halves, but want to use insulated ones for the sides and top of the burn tunnel and bridge.

Edit: the interface where the burn tunnel bricks and the square opening meet the round riser is a point where the metal pipe could be exposed to high heat, I'd make sure that you use bricks cut and fitted so that no metal is exposed to direct heat. Some will cob a few bricks around the riser to hold it in place with friction, so perhaps a layer of fiber blanket cut to shape that the riser sits on would help too?

Edit2: users at Donkey's forums https://donkey32.proboards.com/ have been using the 5 minute riser for several years now, all reports I've seen is they are holding up great.
2 months ago