Hand fed stove options.

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Hoytman
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Post by Hoytman » Wed. Sep. 12, 2018 11:21 am

What stove options are there for someone looking to be able to burn all three...?

Anthracite
Wood
Bituminous

 
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McGiever
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Post by McGiever » Wed. Sep. 12, 2018 11:25 am

Anyone w/ the hopper removable or just plain w/o a hopper at all.

 
Hoytman
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Post by Hoytman » Wed. Sep. 12, 2018 11:54 am

I guess option for hopper fed and non-hopper fed are still on the table. LOL.


 
franco b
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Post by franco b » Wed. Sep. 12, 2018 1:08 pm

Hoytman wrote:
Wed. Sep. 12, 2018 11:21 am
What stove options are there for someone looking to be able to burn all three...?

Anthracite
Wood
Bituminous
There are no options. Only anthracite can be burned with reasonable efficiency in a home stove.

Because of the large gas content of both wood and bit coal, the only way to burn efficiently without wasting that gas as smoke is with controlled feed and air. Pellet stoves do this for wood and power plants pulverize and spray bit coal along with controlled air.

A stove needs large amounts of heated secondary air to be even reasonably successful with wood or bit.

 
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BigBarney
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Post by BigBarney » Wed. Sep. 12, 2018 5:08 pm

Only a reverse draft stove or boiler can burn all three .

Bottom combustion will burn all types of fuel where the draft goes

downward and will have complete combustion of the volatiles with

the secondary air. Most of these are European designed and built

units. They allow the gases and smoke to up and then down through

the hottest part of the fire to be combusted with secondary added

air assist.

BigBarney

 
franco b
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Post by franco b » Wed. Sep. 12, 2018 7:37 pm

BigBarney wrote:
Wed. Sep. 12, 2018 5:08 pm
Only a reverse draft stove or boiler can burn all three .
Without controlled feed it's not going to happen.


 
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BigBarney
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Post by BigBarney » Fri. Sep. 14, 2018 1:34 pm

With coal the top fill door provides access to the coal storage which

does not burn on top but down near the grate and the ash falls to

the grate which has to be cleared for continuing operation. If the ash

clearing were automated it could burn continually as long as fuel is

added which could also be automated. From the bottom up you have layers

of ash , burning coal , fuel supply , the top coal is warm but not burning.

It can burn almost any fuel bituminous coal ,anthracite , and wood chunks

or splits.The hot gases from the fire layer heat the upper charge and mix with

secondary air are cooled and fall to the combustion layer and are burned.

BigBarney

 
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McGiever
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Post by McGiever » Fri. Sep. 14, 2018 9:05 pm

Is this on stove dealer showroom floors now?
How can I go see one tomorrow?

 
franco b
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Post by franco b » Fri. Sep. 14, 2018 9:18 pm

The flaw is with a batch load, the gas produced by wood or bit coal on heating, is too great to be handled without smoke, excessive stack temp, or even explosion. Feed and air have to be controlled to design parameters. I suspect you will find that in the stoves in question. It is possible to gasify wood and burn the gas in a special chamber, provided that plenty of heat exchange is also provided.

Anthracite, with its low gas content, combined with hopper and thermostat to control air easily burns a batch load safely and efficiently. Antiques with gas ring and magazine also perform well.

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