old vs "new" Kaa-4 Keystoker boiler

old vs "new" Kaa-4 Keystoker boiler

PostBy: dave brode On: Tue Jan 28, 2014 1:55 pm

Hello All,

I'm curious, and wonder if the old 4 was a flat bed, or sloped, like KA6's and larger. The new KAA-4 appears to have the same flat bed style stoker and feed motor as the KAA-2.

http://keystoker.com/new.php

http://keystoker.com/products.php#cfb

I must wonder if folks there at Keystoker ever look at their website. They list the KAA-2 as having one 3 x 14" grate ?????. Although I've never R&R'd them, it sure appears as though mine has three grates. They list the KAA-4 as having 4, so assuming that it IS a flat bed, perhaps it's stoker is similar to the 2's, but is wider, and actually has 4 grates, vs 3? Otherwise, how can they raise the btu from 76k net to 105k net?

Dave

p.s. - while in gripe mode, I'll add that they list hopper capacity as 200# one place, and 240# in another.
Yes, I wanted a 4, but they didn't offer them when I bought.
dave brode
 
Stoker Coal Boiler: Keystoker KAA-2
Hand Fed Coal Boiler: used to have a 5 section Red Square
Coal Size/Type: rice anthracite

Re: old vs "new" Kaa-4 Keystoker boiler

PostBy: Rob R. On: Tue Jan 28, 2014 4:09 pm

The older KA-4's had the same 'sloped' stoker design as the current KA-6.

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Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: old vs "new" Kaa-4 Keystoker boiler

PostBy: dave brode On: Tue Jan 28, 2014 8:31 pm

Rob,

Ahh, the old was a KA-4, the new a K"AA"-4. I like yours.

The question is, does the Kaa-4 have a wider stoker than the KAA-2?

Dave
dave brode
 
Stoker Coal Boiler: Keystoker KAA-2
Hand Fed Coal Boiler: used to have a 5 section Red Square
Coal Size/Type: rice anthracite

Visit Lehigh Anthracite

Re: old vs "new" Kaa-4 Keystoker boiler

PostBy: Rob R. On: Tue Jan 28, 2014 8:33 pm

Dave, that isn't my boiler. I just searched the forum for other members that had KA-4's.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: old vs "new" Kaa-4 Keystoker boiler

PostBy: dave brode On: Tue Jan 28, 2014 9:25 pm

Rob R. wrote:Dave, that isn't my boiler. I just searched the forum for other members that had KA-4's.


Well, whoever owns it, I like it better than the "new" and not improved [imo] KAA-4.

Thanks.
Dave
dave brode
 
Stoker Coal Boiler: Keystoker KAA-2
Hand Fed Coal Boiler: used to have a 5 section Red Square
Coal Size/Type: rice anthracite

Visit Lehigh Anthracite