K-2 buckwheat?

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CoalisCoolxWarm
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Post by CoalisCoolxWarm » Tue. Dec. 04, 2018 3:26 pm

How about buckwheat coal in Keystoker K-2 K2?

Different vent model

Thanks

 
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nepacoal
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Post by nepacoal » Tue. Dec. 04, 2018 3:33 pm

Per Keystoker, direct vents can only use rice... From their faq page:

What size coal can I burn in my Keystoker?
On direct vents, Rice only
On chimney models, rice, buckwheat, or a mixture of both

 
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CoalisCoolxWarm
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Stoker Coal Boiler: Keystoker KA-6
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Coal Size/Type: Anthracite Buckwheat
Other Heating: Oil Boiler

Post by CoalisCoolxWarm » Tue. Dec. 04, 2018 3:43 pm

I'm on-site now, really appreciate the quick reply!

I wonder why?

Maybe so the fire goes out of power is out?


 
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nepacoal
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Coal Size/Type: Buck

Post by nepacoal » Tue. Dec. 04, 2018 3:47 pm

I think there is a greater risk for a hopper fire with a direct vent using buck...

 
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CoalisCoolxWarm
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Stoker Coal Boiler: Keystoker KA-6
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Coal Size/Type: Anthracite Buckwheat
Other Heating: Oil Boiler

Post by CoalisCoolxWarm » Tue. Dec. 04, 2018 5:53 pm

So this whole direct vent thing....

ZERO draft without the draft fan running. What happens when the power goes out? Carbon Monoxide?

 
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StokerDon
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Post by StokerDon » Tue. Dec. 04, 2018 7:22 pm

CoalisCoolxWarm wrote:
Tue. Dec. 04, 2018 5:53 pm
So this whole direct vent thing....

ZERO draft without the draft fan running. What happens when the power goes out? Carbon Monoxide?
YUP!
That's why you can only use a direct vent or a power vent on a stoker that has a small amount of coal burning on the grate. The lager stokers, like yours, cannot be power vented because the fire may stay lit causing combustion gasses to leak into the home.

That's why they make chimneys. ;)

-Don


 
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CoalisCoolxWarm
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Joined: Wed. Jan. 19, 2011 11:41 am
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Stoker Coal Boiler: Keystoker KA-6
Hand Fed Coal Furnace: old Sears rebuilt, bituminous- offline as of winter 2014
Coal Size/Type: Anthracite Buckwheat
Other Heating: Oil Boiler

Post by CoalisCoolxWarm » Tue. Dec. 04, 2018 7:36 pm

Ahhh...makes sense!

So how long should I plan on battery backup for the vent before the power goes out on his K2?

 
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StokerDon
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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. 04, 2018 7:42 pm

I've never heard of anyone using a battery backup for a power vent. I don't think you need one. The idea is that the small fire goes out in a few minutes with no draft.

-Don

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