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Merryweather Fire King - a novice build

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Bob Wild

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Thanks Richard - I have never heard of a rocket stove before, but just looked it up and it looks interesting.
Thanks Steamchick - don’t know much about the spec of the boiler, I’m just working from the drawings. As soon as I have put it into Solid Edge I’ll post it on here.
Bob
 

Richard Hed

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Thanks Richard - I have never heard of a rocket stove before, but just looked it up and it looks interesting.
Thanks Steamchick - don’t know much about the spec of the boiler, I’m just working from the drawings. As soon as I have put it into Solid Edge I’ll post it on here.
Bob
Glad that you consider this rocket stove idea. Some are just simple out door stoves for a camp out, and some are permanent heater systems inside a house, but the house type designs are suitable for your shop if modified somewhat to reduce the "mass" and incorporate it into the design of your shop. I can see that these rocket designs will certainly be used for heating homes in the future over fireplaces and even closed heating stoves by a wide margin.
 

Steamchick

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On "Rocket stoves" - but not...
I had a compost maker in the garden that was a tapered steel tube 15" diameter tapering to 10"and 6 ft. long. I decided it would make a good incinerator for woody stuff - partly dried. So I set it off with kindling and started to stuff it with twigs and branches. I used too much fuel and when that got going the whole thing glowed red hot for 2 or 3 feet in the middle - and there was 6 ft of blowlamp flame out of the top! The flame was 10" wide to 6" where it disappeared from view... I could not get near it and a painted wood greenhouse a few feet away started to smoke, so I rigged the water hose to cool the greenhouse!! - My "rocket" burner was like a jet engine on re-heat! Sucking-in all the air it needed and burning the fuel as fast as it could! And it roared like one too! A lesson there: So take care not to over-fuel wood stoves. A little at a time and let them build to a controllable level.
In Norway (a Norwegian told me in the 1970s) they used a similar stove: Using wood shavings from the saw-mill, they compressed the shavings into a 10" cylinder with a hole through the middle 2"diameter. This fuel plug was then dropped into the burner - a simple cylinder of cast iron with an air damper at the bottom, and the top (exhaust) feeding a hot air duct to heat the log-cabin/house. The centre hole was lit, after which the damper closed to control the sawdust plug burning from the bore outwards, in a gentle burn - subject to the air damper. The Hot air from the heat exchanger pipe around the exhaust pipe meant the exhaust to "outside" was "cool enough to just warm your hands" - so being very efficient, and the clean hot air re-circulated around the house to warm it. The sawdust was free, but wood cost money, so they used the sawdust. Now it has a value as the base material for Kitchen furniture, so Norwegians use free hydro-electricity...
K2
 

goldstar31

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I had no idea what a Rocket stove was- and Googled and found the instructions.
OK I have a Mig to make one but will it get rid of everyone's leaves.
I've got a Oak( Sessile) and several horse chestnuts, an ash and a number of sycamores but most of these are NOT mine, Again, I have fences and chestnuts full of unwanted ivy.
Mybe I should get someone to clear it all and I cought get back into my little workshop

Decisions, decisions :confused:
 

Richard Hed

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On "Rocket stoves" - but not...
I had a compost maker in the garden that was a tapered steel tube 15" diameter tapering to 10"and 6 ft. long. I decided it would make a good incinerator for woody stuff - partly dried. So I set it off with kindling and started to stuff it with twigs and branches. I used too much fuel and when that got going the whole thing glowed red hot for 2 or 3 feet in the middle - and there was 6 ft of blowlamp flame out of the top! The flame was 10" wide to 6" where it disappeared from view... I could not get near it and a painted wood greenhouse a few feet away started to smoke, so I rigged the water hose to cool the greenhouse!! - My "rocket" burner was like a jet engine on re-heat! Sucking-in all the air it needed and burning the fuel as fast as it could! And it roared like one too! A lesson there: So take care not to over-fuel wood stoves. A little at a time and let them build to a controllable level.
In Norway (a Norwegian told me in the 1970s) they used a similar stove: Using wood shavings from the saw-mill, they compressed the shavings into a 10" cylinder with a hole through the middle 2"diameter. This fuel plug was then dropped into the burner - a simple cylinder of cast iron with an air damper at the bottom, and the top (exhaust) feeding a hot air duct to heat the log-cabin/house. The centre hole was lit, after which the damper closed to control the sawdust plug burning from the bore outwards, in a gentle burn - subject to the air damper. The Hot air from the heat exchanger pipe around the exhaust pipe meant the exhaust to "outside" was "cool enough to just warm your hands" - so being very efficient, and the clean hot air re-circulated around the house to warm it. The sawdust was free, but wood cost money, so they used the sawdust. Now it has a value as the base material for Kitchen furniture, so Norwegians use free hydro-electricity...
K2
Har har har, that is too funni, I can just see that greenhouse getting hot and smoking. The rocket stove has some additions in that the feed spot is rather small and the pipe is covered with some kind of ceramic like clay or terracotta or brick or anything to absorb the heat and release it slowly. It also has ceramic or glass wool or some kind of insulation in the burning area or just above it in which heat is retained and gotten to the point that it automatically burns the "waste" fuel, that is, smoke! So the fuel is close to if not 100% efficient. And yes, these things are apparently so efficient you can put your hands in the exhaust and there is very little heat and virtually no smoke. I can hardly wait to build one.
 

Richard Hed

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I had no idea what a Rocket stove was- and Googled and found the instructions.
OK I have a Mig to make one but will it get rid of everyone's leaves.
I've got a Oak( Sessile) and several horse chestnuts, an ash and a number of sycamores but most of these are NOT mine, Again, I have fences and chestnuts full of unwanted ivy.
Mybe I should get someone to clear it all and I cought get back into my little workshop

Decisions, decisions :confused:
The chestnuts need to be dry and why would you want to burn leaves? So the neighbors don't whine? Leaves are what make good soil.
 

goldstar31

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Richard, Richard!!!! When will you ever learn about the Englsh English:D
We are a race that will happiliy spend 300 years making or trying to tame green grass to only grow an inch or less when it is programmed to grow TEN inches and go to seed.
We don't want leaves on our manicured 'bowling green' lawns that the rest of the World will come thousands of miles to sdmire and more money than senesce to say that they have seen the Playing fields of Eton or being pnted in a punt up the Cherwell or the little Granta and want to hear the Messiah sung by Huddersfiekld Choral Society. We want to hear leather on willow and wear whites and wear our school blazers o the Thames at Henley or be got at by an annoyed males swan before going to listen to a virtually confusing play by the Bard of Avon.
Then we want to puff out our scrawny chests and try to get into the Proms, to wear funny hats and sing 'Land of Hope and Glory'
Dammit Man! That is what the REST of this Stupid World wants to emulate.
I still have a couple of 'Morning Suits[ with a black jacket and striped grey trousers with a white shirt and my gold Waltham chain hanging from my black waist coat and wearing my old 31 Squadron tie. We wear our evening suits and long Johns if there ever is a heat wave in England.


And- And -- the Rest of the World is pleased to copy us- mad that we are.
 

Richard Hed

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Richard, Richard!!!! When will you ever learn about the Englsh English:D
We are a race that will happiliy spend 300 years making or trying to tame green grass to only grow an inch or less when it is programmed to grow TEN inches and go to seed.
We don't want leaves on our manicured 'bowling green' lawns that the rest of the World will come thousands of miles to sdmire and more money than senesce to say that they have seen the Playing fields of Eton or being pnted in a punt up the Cherwell or the little Granta and want to hear the Messiah sung by Huddersfiekld Choral Society. We want to hear leather on willow and wear whites and wear our school blazers o the Thames at Henley or be got at by an annoyed males swan before going to listen to a virtually confusing play by the Bard of Avon.
Then we want to puff out our scrawny chests and try to get into the Proms, to wear funny hats and sing 'Land of Hope and Glory'
Dammit Man! That is what the REST of this Stupid World wants to emulate.
I still have a couple of 'Morning Suits[ with a black jacket and striped grey trousers with a white shirt and my gold Waltham chain hanging from my black waist coat and wearing my old 31 Squadron tie. We wear our evening suits and long Johns if there ever is a heat wave in England.


And- And -- the Rest of the World is pleased to copy us- mad that we are.
Har har, that is too funni. You should have been a bard yourself.
 

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