Ian Uk

Toby Winston wrote:

Ian Uk wrote:I am looking for a design for a self feeding rocket stove which will installed outside under a cover to protect it from rain.


Self feeding, once started you could use a pellet style feeder?


I would like to be able to heat water, preferably using a tank rather than a coil of copper pipe as I have a 10 and 20 litre tank, which will be used to heat a radiator in a small workshop, I have a 12 volt pump that can be used so the water doesn't boil.

Devils advocate, why not having the rocket stove inside to warm the workshop?

Is there a formula for the length of the flue, burn chamber and the feed tube, I have a length of 6 inch box section, about 6ft long (2 meters) and a 4 inch diameter tubing for the flue pipe which is about 5ft in length.

Box section will not produce the temps required for a totally clean burn and the steel will start to spall in time wrecking your rocket stove....

Where in the uk are you?

You can cast a burn box from sodium silicate, fine clean sand and stove cement, same stuff used to make forged linings, or if chemicals dont tickle your fancy, use good fire bricks.

Ceramic fiber for the riser (where the really hot bit happens)

200l tank over that, assuming you make an 8inch stove.

You need to balance the system, so 8 inch intake 8inch exhaust

I'm sure someone more qualified will be along soon, have you bought the rocket stove book?

Any help anyone can give me would be greatly appreciated

In reply to your questions Toby,

Thank you for the information Toby

The reason I am not putting the stove inside is due to the size of my workshop/man cave, the total size is only 3.6 meters by 2 meters, which has been split into 2, 1 half is going to house amatuer radio equipment, this end is insulated with loft insulation and silver lined insulation and is the area I would like to keep warm the most, the other half will be used for storage for fishing equipment on one side and the other side will have a work bench.

I am based in North Buckinghamshire about 50 miles from London

Thank you for the information on the sodium silicate, fine clean sand and stove cement, I will look into the costs of that

200L does seem on the large size for 1 small radiator of around 500 by 400

What Rocket stove book is that?

I am looking for a design for a self feeding rocket stove which will installed outside under a cover to protect it from rain.

I would like to be able to heat water, preferably using a tank rather than a coil of copper pipe as I have a 10 and 20 litre tank, which will be used to heat a radiator in a small workshop, I have a 12 volt pump that can be used so the water doesn't boil.

Is there a formula for the length of the flue, burn chamber and the feed tube, I have a length of 6 inch box section, about 6ft long (2 meters) and a 4 inch diameter tubing for the flue pipe which is about 5ft in length.

Any help anyone can give me would be greatly appreciated

Fox James wrote:That does not sound ideal to me, most rocket stoves need to be fed wood on a regular basis unless you up your game and build a batch rocket but that would be a bit extreme to heat a little workshop.
I would read through the forum threads and get an idea of what they can do and how they are best used.

Thanks for your response.
The rocket stove would only be used in the winter time and only for about a maximum of 4 to 5 hours so feeding the wood shouldn't be a problem.
I would like to make it large enough to take large pieces of pallet wood so that I only have to fed the wood about every hour.
I have some storage heater bricks which I was going to place around the tank/heat exchanger so these will hold the heat to keep the water hotter for longer

Hi all,
I am wanting to build a rocket stove out of house bricks for my small workshop 10ff by 6ft.
I would like the stove to be outside the workshop to heat a house radiator that is inside the workshop, I have an old home gas boiler I can salvage the heat exchanger from to heat the water within the rocket stove, I also have a 2.5 and a 8 US gallon tank that I could use for the water heat exchanger if needed.

I am wanting to use the heat exchanger or old propane tanks as copper pipe is expensive here in the UK.

Would anyone have any ideas of the best way to design the rocket stove and where to place the heat exchanger

Many thanks from the UK