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Old 11-05-2010, 06:54 PM   #11
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Re: Rocket Heaters in Skoolies

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Originally Posted by Ob1
... Heats well, the blower is a bit anemic though. If you find one, be sure to place it in a central location. If I ever redesign my layout, a central location and maybe some inventive mods to move the heat around will be in order.
Ductwork! When we remodeled the Class C we had to remove a couple of vents. We built a plenum out of flashing and now instead of vents out the sides, it vents at the front (into the galley) and out the side (next tot he front door and the front living area. I also put in a new thermostat. Works great... when we run it. We usually run the little electric heater if we have the electric included with the site rental... which we currently do.
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Old 11-06-2010, 02:04 PM   #12
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Re: Rocket Heaters in Skoolies

The interest in these LOW mass rocket stoves for me is primarily their low fuel consumption. Even the little can models that weigh next to nothing (the low mass ones) use far less wood due to the design. Finding "legal" wood to burn while on the road that doesn't cost me is rather hard from my past experiences, so fuel consumption vs heat output is important. Hope that helps
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Old 11-14-2010, 01:28 PM   #13
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Re: Rocket Heaters in Skoolies

Well, I took another look this past week, and downloaded the Aprovecho labs .pdf. It appears there is a vertical stack at the end of the horizontal pipe heating the mass of the bench. Some of the incomplete construction pictures I first saw made it appear that the flue emptied horizontally into the room. So it appears the rocket stove fire is undamped, and the accelerated airflow gives a blowtorch-type fire heating up the storage mass. I would think the hotter fire would burn shorter, not longer as '87-IH supposes, with the mass then storing and releasing the heat. This is certainly like the Russian/Finnish masonry stove designs. These definitely deserve a look, but space in a skoolie may limit construction options. Most big buses should probably be able to handle the weight, depending on how much water or engine fuel is intended to be carried.
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Old 11-14-2010, 03:52 PM   #14
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Re: Rocket Heaters in Skoolies

I would say that you need to mock up a semi or full working prototype. Often that is the only what you can see if something will work. Do it outside of the bus, following the same criteria and space constraints as if it was inside the bus.
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Old 07-26-2012, 09:06 AM   #15
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Re: Rocket Heaters in Skoolies

I would love to have an efficient woodstove situation in my bus. I think the nature of a rocket stove is that the flue follows along some sort of bench, etc or something with a lot of mass (ie solid clay/cob) so heat gets stored and radiates over time. I think the second half of the rocket stove is trying to keep it to run at a lower temperature, which may involve controlling/minimizing air flow and the size of the box. I do know that part of the equation is how the fuel (ie wood) is fed, through a smaller vertical shaft, shaped like a U, where the fire burns on the left side of the U and the wood slowly gets burned/pulled down on the right side of the U. I could be wrong, I've only seen a demo once.

I do know that it's common to put barrels on top of the fancy duct work (ie up and back down), which should provide a cooking surface.

There's an interesting book on "rocket mass heaters" by Ianto Evans, which may be good for a design standpoint. As for general woodstove design/DIY, there's a book "Wood Stoves: How to Make and Use Them" by Ole Wik, which goes into several varying designs. Since I've never done any before, I'd either get a used woodstove one at first, or spend several months designing and prototyping in/near my garage. The tricker part of a rocket heater is that they traditionally involve lots of brick/clay to

There is a prototype 'super efficient' stove out there called the 'Kimberly', but the owners of the company has quoted me something like $4,000 . I'd rather spend a month or two and design something myself and then share the plans online.
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Old 09-22-2017, 12:42 AM   #16
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4000+ ibs yeah right
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Old 09-22-2017, 10:43 AM   #17
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I have used rocket stoves to cook in my backyard and such. I have never gave it much thought to use to heat a bus.. Have you done this yet?
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Old 09-22-2017, 11:15 AM   #18
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I made a cob oven last year. It's not very big like 3' x 3' and its is extremely heavy. Iam looking for a way to heat my bus at the moment. I want a wood stove that's not to large.
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Old 09-23-2017, 07:12 AM   #19
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Rocket vs. camp stove

I had a homemade 30 gal oil one that I made with 12x28 talipa greenhouse.

It worked ok. I do not think good app.

They burn fast and hot, if you have mass to hold that heat this is good. Most busses loses heat fast and unless you parked mass is a problem.

I am going to try a cabeles thin sheet metal stove this winter in upstate NY when working on conversion.

I think it is this one.

Cabela's Sheepherder's Alaskan Stove : Cabela's
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Old 09-23-2017, 02:48 PM   #20
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The rocket concept works best when combined with lots of heat retaining mass. Mass = weight. Might be tricky in bus but worth examining.
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