AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: Carbon12 On: Thu Feb 13, 2014 9:03 pm

How much coal do you think was wasted so far this season?
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: Lightning On: Thu Feb 13, 2014 9:04 pm

lsayre wrote:The Coal Gun's efficiency is now potentially in the vicinity of 81.5%.
Wow.. That's impressive.. Nice work!! :)
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: lsayre On: Thu Feb 13, 2014 9:26 pm

Carbon12 wrote:How much coal do you think was wasted so far this season?


Seeing as that 3,776 HDD's had gone by at a consumption rate of ~1.5 lbs per HDD (pre the channel cleaning) instead of at 1.3 lbs. per HDD (as for post the channel cleaning), it looks like I potentially wasted 755 lbs. of coal.

3,776 x (1.5-1.3) = 755 lbs. of wasted coal
About $92 worth
lsayre
 
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Stockton Anthracite Pea
Other Heating: Resistance Boiler (13 KW)

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: Carbon12 On: Thu Feb 13, 2014 9:48 pm

Not too bad for a valuable lesson learned.
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: Bhvacr On: Fri Feb 14, 2014 7:08 pm

Hi guys... New to forum.. not to the HVAC world. I am very curious about the Alt Htg S series boilers. 81.5% is pretty good... does everyone with these get that kind of efficiencies? Any other little tid bits of info on them would be appreciated. Looking into a purchase of one... most likely this summer.
Bhvacr
 
Stoker Coal Boiler: Looking at Alt Htg S260

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: Rob R. On: Fri Feb 14, 2014 8:31 pm

A clean boiler is always more efficient than one with flyash on the heat exchange surfaces.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: McGiever On: Fri Feb 14, 2014 9:50 pm

Is it really fair to compare the Old harmony Coal to the Blaschak Coal...the boiler was not cleaned in same manner last season as it was this season, correct?
Since that coal from Harmony is unavailable anymore...guess we will never know the true efficiency of it.
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: lsayre On: Sun Feb 16, 2014 10:31 am

Update: Things just keep getting better. To date for February I'm now approaching closer to only 1.2 lbs. burned per HDD.

And as an aside, due to increased overall efficiency I've revised my estimated DHW consumption down from 4.5 lbs. per day to 4 lbs. per day.

Only time will tell if 1.2 lbs. per HDD is sustainable. That, plus cleanings that get right the heart of the Coal Gun.
lsayre
 
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Stockton Anthracite Pea
Other Heating: Resistance Boiler (13 KW)

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: mikeandgerry On: Fri Mar 07, 2014 3:55 am

I check that "channel" every year when I check the cyclonic fly ash separator. Neither one ever has any fly ash or dust in it. BTW-What it is called is simply a "fire tube". That particular part is the second pass. Fire tubes should be cleaned out regularly in any kind of boiler according to the boiler men I know but I haven't cleaned mine ever--seven seasons. I haven't noticed any higher usage of coal due to that-- at least not yet. I guess I have just been lucky. I had better check the Axeman maintenance manual! I am using more coal this year but, damn, it's been a whole lot colder than last year. The sight door is closing quite nicely.

What I noticed in the picture posted is that the hole cut in the vertical tube that accepts the fire tube and houses the cyclone, was jagged and not large enough for the fire tube. On my unit it is nicely sized, and filed smooth. Perhaps that makes a difference in fly ash collection and it eventually reaches a clogging point. Mine doesn't even collect as much fly ash as was shown in the photo.

My concern is surface rust from no summer usage.

There is an attachment for shop vac style utility vacuums for cleaning out pellet stoves. It consists of a flexible tube about 1/2 to 3/4" in diam and an adapter to a shop vac sized hose (1-1/4 or 1-1/2?). They are overpriced but easier than making your own. It's a couple feet long and probably sufficient to clean out the fire tube. A flexible shaft, soft bristle 3" pellet stove brush might be the ticket also. Not sure if it will make the bend or not.
mikeandgerry
 
Stoker Coal Boiler: Axeman-Anderson Anthratube 130-M

Re: AHS S-130 Coal Gun mid-season cleaning (and lesson learned)

PostBy: greenftechn On: Fri Mar 07, 2014 8:18 am

My concern is surface rust from no summer usage.


Some folks will use a light bulb or piano heater, left in the heat exchanger after end of season cleaning, to help with this.
greenftechn
 
Stoker Coal Boiler: Coal Gun S130
Hand Fed Coal Stove: Alaska Kodiak
Coal Size/Type: Nut
Other Heating: Wood Gun
Stove/Furnace Make: Alternate Heating Systems
Stove/Furnace Model: E100