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"Pocket" Rocket  RSS feed

 
Lin Karcher
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Location: NW Ohio, soon-to-be SE Ohio
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Wanted to share pictures of the "pocket" rocket my husband and son built Sunday (plan from Evans and Jackson's rocket mass heaters book)It'll be used to heat our small (12x14)winter camping shelter, we'll prob cook on it also using a grate/riser.
amazing the way it burns super hot and clean, so little smoke and ash! We only had wet dead wood around to burn so it smoked for a few minutes before the fire pulled down the feed tube. With dry kindling I believe it would smoke far less at start-up. Once the down draft started there was no smoke - exhaust coming out the flue was clear and the whole thing was hot enough in less than five minutes to burn the paint and labels right off the barrel! The amount of heat coming off of it was impressive. We weren't planning to, but now intend to put some rocks and cob around it to hold the heat and protect kids/dogs/objects from getting burned, but we'll have to come up with a way to clean the ash out..
Also wondering if we can take advantage of all the radiant heat coming off the flue if we turn it on its side and add an elbow to the feed tube to make it L-shaped and run the flue the full length of the shelter? Might just try it and see..
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Smoke is from the labels/paint burning
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Burning hot, no smoke!
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Feed tube
 
Satamax Antone
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Location: Southern alps, on the French side of the french /italian border 5000ft high Southern alpine climate.
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Here's what you need for cleaning

 
allen lumley
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Location: Northern New York Zone4-5 the OUTER 'RONDACs percip 36''
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Lin Karcher : Buy the time you reed this you will have discovered just how easily this will set grass and leaves on fire , It will also set fire to blacktop, and cause wet concrete
or stones to spall explosively !Your barrel will last a little longer with some sand in the bottom, because wood ashes contain the caustic Lye you should be very careful to keep
a cold P Rocket from being rained on and never put out the fire with water unless you have a back-up plan for cleaning it out DRY, while you don't actually 'Need' the damper,
being able to close it should help keep the insides dry !

Because of the vast amount of air that gets used by the P Rocket, when the fire is out you have zero retained heat, but if you can find a formation of Flat Rock materials that
you can then stack all around the bottom 3/4-ish in an open lattice pattern and create a reflective back wall your comfort level will greatly improve.

Several years ago A friend introduced me to the idea of putting the P Rocket down in the well drained hole left by a huge wind fall tree, mostly we baked on the p rocket side
while gentle heat radiated back to us off of the up right root ball ! And the wood was pre stacked off of the ground and close by !Wish I was there ! BIG AL !

 
Lin Karcher
Posts: 7
Location: NW Ohio, soon-to-be SE Ohio
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Thanks for the replies and info. I'm reading all the forum discussions on rocket stoves/ heaters and soaking it up.
We are going to make it with a removable lid since because of the high heat it's going to have to be more stationary than we'd first envisioned. I can definitely see safety issues with how HOT it gets! I like the idea of sinking it in the ground with something to radiate the heat back toward the room. The damper seemed to slow the burn slightly, but we were burning it outside in 38 degree weather and it literally roared even with the damper closed. I'd not thought about the ash being corrosive, but it makes sense and we'll try some sand. Hopefully, we'll be using (and experimenting) with it weekends this winter and have a "real" house with a "real" rocket mass heater next winter!
 
allen lumley
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Location: Northern New York Zone4-5 the OUTER 'RONDACs percip 36''
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Lin Karcher : I am glad that your family made making a Pocket Rocket a priority ! Now is the time to find a second barrel just like your first one, or failing in that,a second lid
identical to the one you used to make your Pocket Rocket !

Please go to our sister site, richsoil.com , find and clickon> the rocket mass heater link and watch the whole series of short rocket videos, the one I want you to see is
the one about burning off the paint off of the barrel ( the 6th?-8th? one ?) something you must do before you bring it indoors, while the way shown in the video does not actually
show a Pocket Rocket please due use yours and the paper machee` to burn off/out any nasties ! BIG AL !
 
Satamax Antone
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Location: Southern alps, on the French side of the french /italian border 5000ft high Southern alpine climate.
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Well, needed to burn a barrel, so i did a quicky pocket rocket lid.

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Lin Karcher
Posts: 7
Location: NW Ohio, soon-to-be SE Ohio
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Thank and Will do, Al and thanks Satamax! we can't wait to get back down to the homestead and try another one. I will visit richsoil and I'm going to buy the RMH DVD set for myself for Xmas so we can do more building and experimenting over the next several months😀

 
Satamax Antone
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Location: Southern alps, on the French side of the french /italian border 5000ft high Southern alpine climate.
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Lin Karcher wrote:Thank and Will do, Al and thanks Satamax! we can't wait to get back down to the homestead and try another one. I will visit richsoil and I'm going to buy the RMH DVD set for myself for Xmas so we can do more building and experimenting over the next several months😀



Lin, if you want i have more reliable, clean, safe solutions. Better than a pocket rocket, tho, not that far.
 
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