Keystoker 90/105 Stoker Mods

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Olllotj
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Location: Western NY 14141
Stoker Coal Boiler: Keystoker KB-8
Coal Size/Type: Buckwheat
Other Heating: Utica Propane Hot Water

Post by Olllotj » Tue. Dec. 16, 2014 2:34 pm

I came across this on Cl and he has done some interesting mods to the stove.
It lookss like he added an ash auger, and a second combustion fan with a cold air return?

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Lightning
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Stoker Coal Boiler: Modified AA 130
Coal Size/Type: Pea Size - Anthracite

Post by Lightning » Tue. Dec. 16, 2014 3:56 pm

I don't think that is a second combustion fan strapped to the top door. I believe he built and added another heat exchanger that hangs over the burn plate when the door is closed.. It appears it runs upwards to add to his heating supply.

 
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mariohotshot
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Post by mariohotshot » Tue. Dec. 16, 2014 6:57 pm

That is a heat exchanger on the front. The blower pulls in air and blows out the hot air through the flex duct. The holes on top of the exchanger are actually tubes from top to bottom allowing heat to flow through from the stove. He also extended the rear to transfer the heat from the auger to the convection blower, while cooling the ashes on the way out! Very creative!!!

 
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StokerDon
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Location: PA, Southern York County!
Stoker Coal Boiler: Gentleman Janitor GJ-5, Van Wert VA-600, Axeman Anderson130 X3.
Hand Fed Coal Furnace: Harman SF3500 reduced down to 3 grates connected to its own plenum
Coal Size/Type: Rice, Chestnut and whatever will fit through the door on the Harman
Other Heating: Noth'in but COAL! Well, Maybe a little tiny bit of wood

Post by StokerDon » Tue. Dec. 16, 2014 7:11 pm

It is very creative and looks to be well fabricated. But, Dang, he could have just bought a furnace instead!

-Don


 
Olllotj
Member
Posts: 558
Joined: Thu. Sep. 04, 2014 10:01 am
Location: Western NY 14141
Stoker Coal Boiler: Keystoker KB-8
Coal Size/Type: Buckwheat
Other Heating: Utica Propane Hot Water

Post by Olllotj » Tue. Dec. 16, 2014 7:17 pm

I'm assuming that's why it's for sale. The kokers are about the same price. if you have the clearance that's the way to go.

 
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windyhill4.2
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Stoker Coal Boiler: 1960 EFM520 installed in truck box
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Coal Size/Type: 404-nut, 520 rice ,anthracite for both

Post by windyhill4.2 » Tue. Dec. 16, 2014 9:13 pm

StokerDon wrote:It is very creative and looks to be well fabricated. But, Dang, he could have just bought a furnace instead!

-Don
Some guys are only happy when they are "improving" their unit,if he had bought the proper furnace to begin with he wouldn't have needed to tweak it. :)

 
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mariohotshot
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Post by mariohotshot » Tue. Dec. 16, 2014 10:09 pm

Sold! Modifications made by a welder and sold to another welder! Nice piece of work!

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