K-4 Keystoker Boiler

K-4 Keystoker Boiler

PostBy: maxpower_454 On: Thu Dec 20, 2012 1:09 pm

Does anyone have pictures/specs/thoughts/advice on this? I found a used one and I am wondering if it would suit my needs.
maxpower_454
 

Re: K-4 Keystoker Boiler

PostBy: steamup On: Thu Dec 20, 2012 1:19 pm

The K-4 was a scaled down K-6 with about 91 MBH net output. It requires a 8" flue connector.

It was discontinued due to the KAA-2 was fairly close in capacity but lower cost.

The KA-4 still should be supported by Keystoker as it used standard parts from their stoker line.

It should be a fine boiler if in good condition.
steamup
 
Stoker Coal Boiler: Axeman-Anderson AA-130, Keystoker K-6
Hand Fed Coal Boiler: HS Tarm 502 Wood/Coal/Oil
Coal Size/Type: pea, buck, rice

Re: K-4 Keystoker Boiler

PostBy: coalkirk On: Thu Dec 20, 2012 2:33 pm

I believe they could have also been ordered with a 6" flue when the KA-4 was available. If the 8" flue is a problem, you might double check this unit. It could have a 6" flue.
coalkirk
 
Stoker Coal Boiler: Harman VF3000
Coal Size/Type: antrhcite/rice coal

Visit Lehigh Anthracite

Re: K-4 Keystoker Boiler

PostBy: maxpower_454 On: Thu Dec 20, 2012 4:09 pm

Anyone currently using one? Why were they discontinued? Is it a good boiler? I know Keystoker boilers are usually excellent but did they ahve problems with this one?
maxpower_454
 

Re: K-4 Keystoker Boiler

PostBy: steamup On: Thu Dec 20, 2012 4:28 pm

maxpower_454 wrote:Anyone currently using one? Why were they discontinued? Is it a good boiler? I know Keystoker boilers are usually excellent but did they ahve problems with this one?


There is nothing wrong with that model boiler that I have heard. I looked in my old manual and the K-4 is rated for 96 MBH gross and 67 MBH net.

Keystoker came out with the KAA-2 with a rating at 90 MBH gross and 76 MBH net. It was a smaller, more economical boiler for lighter heating load applications. There was no need for the KA-4 model anymore because it cost more than the KAA-2 and had about the same output.
steamup
 
Stoker Coal Boiler: Axeman-Anderson AA-130, Keystoker K-6
Hand Fed Coal Boiler: HS Tarm 502 Wood/Coal/Oil
Coal Size/Type: pea, buck, rice

Visit Lehigh Anthracite