Rocket stove with heat exchanger uk

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

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.

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

Well ok we are all up for new designs an experiments however one of the many issue that strikes me as a stumbling block would be housing the rocket stove outside. You will need a waterproof cover as all refectory products are very susceptible to wet or even damp conditions. Water being arch enemy no one if you want max combustion you need dry materials for the construction and use.