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Carbon12
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Posts: 2230
Joined: Tue. Oct. 11, 2011 6:53 pm
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace
Location: Harrisburg, PA

Post Mon. Aug. 05, 2013 4:35 pm

Carbon12 back on the air. Hitzer 983 hand fired fireplace insert served me well but now I'm in a new town and have gone over to the dark side. I bought a previously enjoyed (Just like my Ex Wife whom I'm suddenly back together with after being divorced for 14 years! Lol!) stoker boiler. A Keystoker KA-6 to be exact. Thanks Hollyfeld!!! I'm going to be installing it next to an oil fired hot air furnace. I need to do some calculations to order a hot air coil to place in the plenum of the existing oil fired furnace. Since the boiler is completely disassembled, is there anything special I could/should do to clean the beast before installation? Any advice, as always, much appreciated!
No matter where you go,......there you are.

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lsayre
Member
Posts: 12191
Joined: Wed. Nov. 23, 2005 9:17 pm
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW)
Location: N/E Ohio, between Medina and Wadsworth

Post Mon. Aug. 05, 2013 7:57 pm

Looks like 16"x16" or 16"x18" would use all the BTU's a KA-6 can generate. But the article states that you should buy the size that fits your plenum with a tad to spare on each side.

http://www.altheating.com/exchangers.htm

http://www.outdoorstovesupplies.com/Categories.bo ... ter-to-Air
-Larry

Democracy rests upon the principle that collective wisdom arises from a pool of individual ignorance. A Republic rests squarely upon objective law, and fundamentally upon those laws which restrict the scope and actions of government.


User avatar
Carbon12
Member
Posts: 2230
Joined: Tue. Oct. 11, 2011 6:53 pm
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace
Location: Harrisburg, PA

Post Mon. Aug. 05, 2013 9:04 pm

Thanks for the info lsayre!
No matter where you go,......there you are.

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McGiever
Member
Posts: 5997
Joined: Sun. May. 02, 2010 11:26 pm
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Coal Size/Type: PEA / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek
Location: Junction of PA-OH-WV

Post Mon. Aug. 05, 2013 10:05 pm

Whoa...hold on there...Sizing the water to air heat exchanger takes in some factors that are sometimes variable.

You need to know three biggies...water temp delivered, water flow rate through it and the c.f.m. of air across the coil. Don't get even one of these wrong or you'll be crying in your beer.

And further more, you may actually need to make the duct/plenum larger around the heat exchanger than the existing duct to get your required size H/X installed.

And remember...if you're also making lots of DHW on a 0* degree day then the water temp delivered to the coil may not be what was figured and that's not the day to find that out.

Next to the boiler...the H/X is very critical to home heat comfort. :)
SLOW AND STEADY WINS THE RACE

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