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Post by matthewwalker on Jul 27, 2014 12:12:34 GMT -8
Robert! It's BEAUTIFUL!! Such nice work, I can't wait to see it burning.
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Post by wrekinwanderer on Aug 20, 2014 12:46:13 GMT -8
I love it too Robert and would love to know how it gets on, particularly your thoughts about the oven's performance, although perhaps we'll have to wait until the weather gets chillier.
Saying that it's cold in Northern France at the mo! Was very grateful for my speedy knock up of a matthewwalker inspired patio heater as it was getting dark for our daughter's naming ceremony. The grandparents do feel the cold! Not used to outdoor living....
Also, I'd love to know how much space you gave either side and on top of the oven?
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Post by ericvw on Aug 21, 2014 2:31:22 GMT -8
Beautiful work Robert! What mortar do you use with the fire bricks? Store bought or homemade? I'm getting ready soon to assemble mine in our house and need advice on this. Want to come to US and lend a hand and creativity?! Great job again, Eric VW
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Post by Robert on Aug 27, 2014 12:12:33 GMT -8
Robert! It's BEAUTIFUL!! Such nice work, I can't wait to see it burning. Wow. Thank you Matt. It is a great compliment for me. Your work is an inspiration for me. Thank you for your kind words. And yes i cant`t wait to to see it burning too. Soon there should be a chimney finished and we should make a first fire around september i hope:) I love it too Robert and would love to know how it gets on, particularly your thoughts about the oven's performance, although perhaps we'll have to wait until the weather gets chillier. Thank you as well. I will write everything once we start the fire. I will make some temp measures and update you all with the info. Also, I'd love to know how much space you gave either side and on top of the oven? as far as i remember there is around 20CM on the sides and around 30CM from top of the oven to the top of the stove. Beautiful work Robert! What mortar do you use with the fire bricks? Store bought or homemade? I'm getting ready soon to assemble mine in our house and need advice on this. I used a store bought premixed mortar based on sodium silicate. Want to come to US and lend a hand and creativity?! Wow. I am not sure wheter it is an invitation, but yes that would be awesome to go and travel and help someone to build a rocket stove. Just the travel cost should be covered and some pocket money on top of that as well
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Post by ericvw on Aug 27, 2014 16:07:10 GMT -8
Ha! Robert has a sense of humor! If I had money to spare, I'd bring several of ya's in! Thanks for the response on the mortar. I'm just trying to pin down the final details before launching the batch rocket in the basement... soon. Was your mortar in a bucket, ready to use? Or was it a dry mix needing water? Is there a brand, like Heatstop? Sorry to beat it into the ground, like I said, I want to pin it all down. Can't wait to see your next effort! Eric VW
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Post by patamos on Oct 17, 2014 7:41:39 GMT -8
Hi Robert,
Just getting back in the loop here. Beautiful build!!!
I'm considering doing something similar, and the building inspectors have me wondering about the weight. (eg. will i need to replace or reinforce the existing concrete slab with a footing...) Do you have any idea what your heater weighs??
well being
pat
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ekw
New Member
Posts: 14
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Post by ekw on Feb 24, 2015 18:39:16 GMT -8
Robert - How has the project performed over the winter? Any word from the clients? What does the oven do?
Patamos - I suppose you've already done the project by now, care to point us toward pictures? For estimating: If you know how thick, wide, and tall the walls are going to be, you can estimate the weight yourself. Don't forget to count any materials used to build up from the foundation as they have weight too. Count either by cubic feet of material, or by units + a factor for mortar.
You can weigh the type of brick and refractory units you are actually using, either one unit or a stack of 5 for averaging, for a more accurate estimate on those parts. I might make a one-square-foot stack with cut bricks and mortar, and weigh it to estimate your whole structure.
To estimate just based on the design, we often use the figure 95 pounds per cubic foot for adobe (clay plasters and related stuff), or 100-150 lbs/c.f. for brick and concrete components. I believe I found those on engineeringtoolbox.com. Fire brick has very specific densities and is worth looking up separately.
A colleague in Portland estimated that a solid 4" slab on grade footing can support a low bench up to about 30" tall. We usually estimate an 18" tall bench (which is solid except for our pipe-based channels) as about 150 lbs/sf.
These taller all-masonry bells may be lighter overall, but may concentrate that weight on fewer square feet of support area.
Yours, Erica W
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