Fan CFM With Anthraking AK110

Fan CFM with AnthraKing AK110

PostBy: coalnewbie On: Sun May 26, 2013 2:47 pm

I have noticed that when the stove runs flat out the coal bed gets too thick (coaltrol MAX 30 and above) and my thermometer over the front door actually goes down from 625F to 500F at say max 38 and the bed does not seem as bright. My coal (Jeddo?) has a lot of fines and that has to play a part in air flow through the bed. Now I have my Gale mining load I see there is much less fines and a slightly bigger rice size so I think that will help a lot. I am also going to spend $90 on a 65 CFM combustion fan vs 60CFM for next winter. I have a powervent unit that I keep at .02 to 0.04 but how about a second Dywer unit over the front door to monitor pressure in the stove and what should it read? LL has a bulletin on the boilers on this issue. House negative pressure is not an issue as this draughty c rappola Victorian leakbox gives plenty of air and I have a make up air vent to the outside. Summer is the time to get it right, of course I am assuming that summer will come soon. :cry:


February 2013 The 60 CFM Combustion Fans found on the WL110 and AA220 Boilers have been found to be undersized in some installations, the symptoms are flames coming off the coal bed at full fire that are only 8 to 10" tall. This issue first appeared during the colder weather in January. Research using the 60 CFM fan showed that it needs to be replaced by a 65 CFM fan on some boilers (to ensure no issues we are shipping the larger fan with all new Boilers from now on). The larger combustion fans bolt on in place of the old fans and need to be adjusted for proper over fire draft (the procedure is found here). If you feel you have a under performing Combustion Fan contact your dealer and we can determine if you need a new larger fan.
Hot Air Coal Stoker Stove: LL AnthraKing 180K, Pocono110K,KStokr 90K, DVC
Hand Fed Coal Stove: Invader 2
Baseburners & Antiques: Wings Best, Glenwood #8(x2) Herald 116x
Coal Size/Type: Rice,
Other Heating: Heating Oil CH, Toyotomi OM 22

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Re: Fan CFM with AnthraKing AK110

PostBy: Rob R. On: Sun May 26, 2013 7:09 pm

I expect the new coal will allow better combustion at full throttle. If it still can't handle max feed without the plenum temp. dipping, limit the feed accordingly.

-0.01" to -0.02" of W.C. over-fire should be fine. Target -0.02" when you set it up.
Rob R.
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

Re: Fan CFM with AnthraKing AK110

PostBy: McGiever On: Sun May 26, 2013 9:07 pm

:idea: Add a second Dwyer...or...add a tee, valve or two and some more tubing and switch the valve(s) to see either reading with just one Dwyer. ;)
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

Re: Fan CFM with AnthraKing AK110

PostBy: Flyer5 On: Sun May 26, 2013 9:54 pm

If you are only at 30 for Max then something is out of sorts. Most of the 110s run 42-44 max. Another thing that leads to a thick coal bed is the grate not being fully seated on the feeder. I will get in touch on Tue. Dave
Stoker Coal Boiler: Leisure Line WL110
Hot Air Coal Stoker Stove: Leisure Line Pioneer

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