Ahs 260 lit for 2021
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- Joined: Mon. Nov. 25, 2019 11:11 pm
- Location: ringoes, nj central west jersey near pA border
- Stoker Coal Boiler: ahs s260
- Coal Size/Type: pea
- Other Heating: fuel oil
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35 lbs ash over the last 56 hours, during this cold snap in nj. been 13 at night to 35 during day. figuring 13% ash, works to 115lbs coal for 24hours. im happy with that, but know it can be improved.
- Lightning
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- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
I've been putting 80 pounds a day in for a few days straight trying to keep the barrel caught up.. the barrel is starting to fall behind a bit so I'm 80+ per day at the moment.
- hotblast1357
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- Location: Peasleeville NY
- Stoker Coal Boiler: 1984 Eshland S260 coal gun
- Coal Size/Type: Lehigh anthracite pea
- Other Heating: air source heat pump, oil furnace
What’s your outside temps for burning that much coal?
- Lightning
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- Coal Size/Type: Pea Size - Anthracite
Average OAT for the past 6 days is 19.5 degrees.hotblast1357 wrote: ↑Tue. Jan. 11, 2022 7:10 pmWhat’s your outside temps for burning that much coal?
Roughly 75 pounds per day..
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- Stoker Coal Boiler: ahs s260
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Well its been pretty cold here. The graph is close to my temps, but it got down to 2 deg here. Over last 56 hours here is the stats:
Date------------Lbs---Hours----Ash %-----Coall lbs(based on ash %) ---Lbs/hour
01/17/22------55-----56---------13----------423.076923076923------------7.55494505494505 Wow 181lbs in 24hours
Temp chart: Gopher Hole:
Date------------Lbs---Hours----Ash %-----Coall lbs(based on ash %) ---Lbs/hour
01/17/22------55-----56---------13----------423.076923076923------------7.55494505494505 Wow 181lbs in 24hours
Temp chart: Gopher Hole:
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- Member
- Posts: 253
- Joined: Mon. Nov. 25, 2019 11:11 pm
- Location: ringoes, nj central west jersey near pA border
- Stoker Coal Boiler: ahs s260
- Coal Size/Type: pea
- Other Heating: fuel oil
- Contact:
Ok so 37lbs ash over last 56 hours at 13% ash gives 284.61 lbs coal / 56 hours = 5.08 lbs per hour = 121.97 lbs per day.
Avg temp over last 2 days is about 38deg low avr 20 deg.
That said here is a graph of my heat ex-changer during the avg low of 24deg on Monday 1/17/2022. Looks like every 60 min I have a call for heat which drops the coal boiler input from 192 to 148 in 20 seconds as return from rads is 137 deg. In about 9 minutes return gets up to 148, then coal boiler drops again. After 18 minutes system gets back up temp. My question to the experts is do I not have enough GPM on Coal boiler? seems like I am no moving enough BTU to recover from a heat call. I have a taco 007 on the Coal Boiler running 7/24 at calculated 6ft of head, through 1 1/4 pipe. Taco curve say I should be moving 13 GPM for 130,000 btu hour. I will be getting more data soon with pump run data, outside temps. Open to sugestions.
Avg temp over last 2 days is about 38deg low avr 20 deg.
That said here is a graph of my heat ex-changer during the avg low of 24deg on Monday 1/17/2022. Looks like every 60 min I have a call for heat which drops the coal boiler input from 192 to 148 in 20 seconds as return from rads is 137 deg. In about 9 minutes return gets up to 148, then coal boiler drops again. After 18 minutes system gets back up temp. My question to the experts is do I not have enough GPM on Coal boiler? seems like I am no moving enough BTU to recover from a heat call. I have a taco 007 on the Coal Boiler running 7/24 at calculated 6ft of head, through 1 1/4 pipe. Taco curve say I should be moving 13 GPM for 130,000 btu hour. I will be getting more data soon with pump run data, outside temps. Open to sugestions.
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- Posts: 253
- Joined: Mon. Nov. 25, 2019 11:11 pm
- Location: ringoes, nj central west jersey near pA border
- Stoker Coal Boiler: ahs s260
- Coal Size/Type: pea
- Other Heating: fuel oil
- Contact:
I aplogize, I know I need to send you guys a diagram of my radiator system. im working on it. I gotta go in the dungeon(aka crawl space) to see whats what, and I hate going in that h## hole. Jimmy Hoffa is buried in there for all I know.
- nepacoal
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- Stoker Coal Boiler: Keystoker KAA-4 / "Kelly" and an EFM 520 at my in-laws
- Hand Fed Coal Boiler: Harman SF-260 - retired
- Coal Size/Type: Buck
Dumping all your hot water in 20 seconds cannot be heating your house evenly... My converted gravity system with cast iron radiators used to do the same thing. I throttled back my flow so that it now takes 5.5 to 6 minutes to go from 190 down to 155 (circulator LL shut off). It works much, much better and all the radiators get the same temp instead of the two or three that were closest to the boiler. Plus, those few extra minutes allows the boiler to ramp up the fire which really helps during those times when you have long intervals between calls for heat.
- Rob R.
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What are you using to monitor the temperatures and collect this data? Your graph is great.Jkohanski wrote: ↑Wed. Jan. 19, 2022 11:01 pmOk so 37lbs ash over last 56 hours at 13% ash gives 284.61 lbs coal / 56 hours = 5.08 lbs per hour = 121.97 lbs per day.
Avg temp over last 2 days is about 38deg low avr 20 deg.
That said here is a graph of my heat ex-changer during the avg low of 24deg on Monday 1/17/2022. Looks like every 60 min I have a call for heat which drops the coal boiler input from 192 to 148 in 20 seconds as return from rads is 137 deg. In about 9 minutes return gets up to 148, then coal boiler drops again. After 18 minutes system gets back up temp. My question to the experts is do I not have enough GPM on Coal boiler? seems like I am no moving enough BTU to recover from a heat call. I have a taco 007 on the Coal Boiler running 7/24 at calculated 6ft of head, through 1 1/4 pipe. Taco curve say I should be moving 13 GPM for 130,000 btu hour. I will be getting more data soon with pump run data, outside temps. Open to sugestions.
boilerrundata1.png
I would say you have plenty of flow though the boiler. You want the circulators to run for a long time and the system temperatures to be stable, not have peaks and valleys like shown in your graph.
Reduce your aquastat setting on the S260 to 160 degrees. This should "flatten the curve".
- Hambden Bob
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Thanx For All Of This,Gang! A Fine Read Indeed! Inquisitive Knuckledraggers such as myself are gaining alot from this. Carry On!
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- Posts: 253
- Joined: Mon. Nov. 25, 2019 11:11 pm
- Location: ringoes, nj central west jersey near pA border
- Stoker Coal Boiler: ahs s260
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- Contact:
Rob, I am getting the data with my home made Raspberry Pi hobby computer. See this thread on the forum. "Electronic DEVELOPMENT thread for sensors, monitors, controls"Rob R. wrote: ↑Thu. Jan. 20, 2022 6:29 amWhat are you using to monitor the temperatures and collect this data? Your graph is great.
I would say you have plenty of flow though the boiler. You want the circulators to run for a long time and the system temperatures to be stable, not have peaks and valleys like shown in your graph.
Reduce your aquastat setting on the S260 to 160 degrees. This should "flatten the curve".
I will lower the temp on the coal boiler and report back. Also I will try to get a complete diagram drawn up of what I got. Thanks!
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Cold week coming up. Been a some time since we had a week of in the teen at night. The Gopher is gonna get fat.
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- Stoker Coal Boiler: ahs s260
- Coal Size/Type: pea
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Well here comes the snow. Just finished sealing up house as best I can, used 4 cans of expanding foam. Windows now look like pretty funky, but are less draft. Filled the gopher with 2 tons of Blaschak coal today. Based upon volume of bin, I used maybe a hair less then 2 ton based upon my last delivery. I try to level it out when I measure, but still not 100% accurate.
So lets see, by going by bin volume, 2 tons over 26 days gives 153.84 lbs per day.
My ash weight today was 25 lbs, over 30 hours, at 13% ash, gives 6.41 lbs per hour. So at 6.41 lbs per hour by 24 hours i get 153.84 lbs per day. Pretty damn close to the bin volume. The 6.41 lbs per hour seems to be around what I have been seeing for 35hi/20low temps. During the last 7 deg blast I hit 7.55 lbs per hour. Hopefully will be a little bit better this time around.
So lets see, by going by bin volume, 2 tons over 26 days gives 153.84 lbs per day.
My ash weight today was 25 lbs, over 30 hours, at 13% ash, gives 6.41 lbs per hour. So at 6.41 lbs per hour by 24 hours i get 153.84 lbs per day. Pretty damn close to the bin volume. The 6.41 lbs per hour seems to be around what I have been seeing for 35hi/20low temps. During the last 7 deg blast I hit 7.55 lbs per hour. Hopefully will be a little bit better this time around.
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- Location: ringoes, nj central west jersey near pA border
- Stoker Coal Boiler: ahs s260
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Well here is proof that sealing the small drafts, does have a big effect. Guess I am going to spend the summer trying to fix these double hung windows. I think I will also try and make some storm windows. I am using abut 1 lb less coal per hour.