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coalkirk
- Member
- Posts: 5185
- Joined: Wed. May. 17, 2006 8:12 pm
- Location: Forest Hill MD
- Stoker Coal Boiler: 1981 EFM DF520 retired
- Hand Fed Coal Stove: Jotul 507 on standby
- Coal Size/Type: Lehigh anthracite/rice coal
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by coalkirk » Wed. Jan. 04, 2012 5:06 pm
Pacowy wrote:Steamup,
I was going to respond to your comment that "even the railroads would help that freight over the hill with an extra engine rather than have all of the needed capacity connected constantly" by saying they'd only put in a helper district if there really was no other way. You've beaten me to the punch, however, with your observations about heat loss. To that I'd add that from my experience with a Mag stoker, I wouldn't be too concerned about running it harder, especially if the burn is being monitored and the stoker doesn't need to run hard often. Also, I know precious little about hot water systems, but it wasn't obvious why the tempering would be needed if the unit was only run on demand. Squeezing out a few more degrees of temperature differential seems like it could help.
Mike
Mike
The idea of the tempering of the water to the water to air heat exchanger is to even out the coal boiler burn. I don't want to knock the coal boiler temperature too far down. It accomplishes more or less the same thing as a bypass loop on a boiler.
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steamup
- Member
- Posts: 1209
- Joined: Fri. Oct. 03, 2008 12:13 pm
- Location: Napoli, NY
- 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
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by steamup » Wed. Jan. 04, 2012 5:34 pm
Temperature differential out of the system does no good if there is insufficient capacity at the boiler to add the heat back in. Coalkirks problem is that of generation, not delivery. The VF is a small boiler rated only at 95,000 BTUh input. How that was rated and under what conditions we are not told.
Generating a lower supply temperature typically increases the output of a boiler and increases its efficiency but too low a temperature creates other problems.
There are many solutions to the situation here. It seems to me a little selective zoning would be the simplest and cheapest solution.
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sterling40man
- Member
- Posts: 1645
- Joined: Sat. May. 03, 2008 11:52 am
- Location: Northern Maine
- Stoker Coal Boiler: Keystoker K6
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by sterling40man » Wed. Jan. 11, 2012 8:14 am
-7.3* here this morning and windy. Must be -20* wind chill. BRRRRRRRRRRRRR. It's 72* in the house.
Burned just under 3 ton so far since Sep 17. Another 3 1/2 months of winter to go here. We are half way there!
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Rob R.
- Site Moderator
- Posts: 18004
- Joined: Fri. Dec. 28, 2007 4:26 pm
- Location: Chazy, NY
- Stoker Coal Boiler: EFM 520
- Hand Fed Coal Stove: Chubby Jr
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by Rob R. » Fri. Jan. 13, 2012 6:27 pm
Here we go again...27 degrees and the wind is roaring in with a cold front, supposed to be 2 degrees by morning and -12 tomorrow night. 73 in the house.
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CoalHeat
- Member
- Posts: 8862
- Joined: Sat. Feb. 10, 2007 9:48 pm
- Location: Stillwater, New Jersey
- Stoker Coal Boiler: 1959 EFM 350
- Hand Fed Coal Stove: Harman Magnafire Mark I
- Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
- Coal Size/Type: Rice and Chestnut
- Other Heating: Fisher Fireplace Insert
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by CoalHeat » Fri. Jan. 13, 2012 9:58 pm
A little warmer here, 22 tonight and 17 tomorrow night.
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SMITTY
- Member
- Posts: 12526
- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
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by SMITTY » Fri. Jan. 13, 2012 10:05 pm
We started the day at 42° ... now 25°. At one point the average wind speed was over 10 mph. Lights flickered ... but shockingly we didn't lose power. We usually lose power when it RAINS .. let alone due to high winds.
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CapeCoaler
- Member
- Posts: 6515
- Joined: Sun. Feb. 10, 2008 3:48 pm
- Location: Cape Cod, MA
- Stoker Coal Boiler: want AA130
- Hand Fed Coal Stove: DS Machine BS#4, Harman MKII, Hitzer 503,...
- Coal Size/Type: Pea/Nut/Stove
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by CapeCoaler » Fri. Jan. 13, 2012 11:13 pm
Gusts on The Cape to 77 mph...
Down in HYA to 55 mph...
Just got down to 31*...
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lumpocoal
- Member
- Posts: 781
- Joined: Thu. Jan. 21, 2010 6:47 pm
- Location: Titusville, Pa
- Hand Fed Coal Stove: Cheerful Monogram 211 B
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by lumpocoal » Sat. Jan. 14, 2012 12:04 am
down to 17 here
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freetown fred
- Member
- Posts: 30300
- Joined: Thu. Dec. 31, 2009 12:33 pm
- Location: Freetown,NY 13803
- Hand Fed Coal Stove: HITZER 50-93
- Coal Size/Type: BLASCHAK Nut
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by freetown fred » Sat. Jan. 14, 2012 6:11 am
Kinda balmy here this AM--18* looking for 2* tonight. Then it's supposed to get cold tomorrow.
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I'm On Fire
- Member
- Posts: 3918
- Joined: Thu. Jun. 10, 2010 9:34 am
- Location: Vernon, New Jersey
- Hand Fed Coal Stove: DS Machines DS-1600 Hot Air Circulator
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by I'm On Fire » Sat. Jan. 14, 2012 6:46 am
19° here. Supposed to be only a high of 20 today. It's 71.2° in the house. Laser on the top of the stove reads 443° just behind the Hopper door. It was bloody windy all night.
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Rob R.
- Site Moderator
- Posts: 18004
- Joined: Fri. Dec. 28, 2007 4:26 pm
- Location: Chazy, NY
- Stoker Coal Boiler: EFM 520
- Hand Fed Coal Stove: Chubby Jr
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by Rob R. » Sat. Jan. 14, 2012 7:08 am
I'm On Fire wrote: It was bloody windy all night.
Same here. Current windchill is around zero. I just went out to get the paper and "scurried" back to the house.
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lsayre
- Member
- Posts: 21781
- Joined: Wed. Nov. 23, 2005 9:17 pm
- Location: Ohio
- Stoker Coal Boiler: AHS S130 Coal Gun
- Coal Size/Type: Lehigh Anthracite Pea
- Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
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by lsayre » Sat. Jan. 14, 2012 8:02 am
17 or 18 degrees around here also, depending upon which weather website I look at. High today of 22 to 25 degrees, likewise dependent upon who's doing the prognosticating. Lots of snow, with ugly drifts from the wind. Guess I'll be out running the snow blower sometime this morning.
Thankfully its toasty warm inside though.
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Rob R.
- Site Moderator
- Posts: 18004
- Joined: Fri. Dec. 28, 2007 4:26 pm
- Location: Chazy, NY
- Stoker Coal Boiler: EFM 520
- Hand Fed Coal Stove: Chubby Jr
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by Rob R. » Sun. Jan. 15, 2012 10:11 am
Checking in at -5. Bright sunny day, looks pleasant from the warm side of the window.
That new auger pipe I installed on my EFM must be good and shiny on the inside by now...it has been running 30-40 minutes out of every hour. 73 in the house...including the bedrooms.
Our "little guy" (Ivan) decided to get his first stomach bug and has been sick. He was cold last night so I just kept bumping the thermostat until he was comfortable.
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CoalHeat
- Member
- Posts: 8862
- Joined: Sat. Feb. 10, 2007 9:48 pm
- Location: Stillwater, New Jersey
- Stoker Coal Boiler: 1959 EFM 350
- Hand Fed Coal Stove: Harman Magnafire Mark I
- Baseburners & Antiques: Sears Signal Oak 15 & Andes Kitchen Range
- Coal Size/Type: Rice and Chestnut
- Other Heating: Fisher Fireplace Insert
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by CoalHeat » Sun. Jan. 15, 2012 11:13 am
Only got down to 11 last night, currently 15 degrees.
Hope the little guy feels better fast Rob.
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sterling40man
- Member
- Posts: 1645
- Joined: Sat. May. 03, 2008 11:52 am
- Location: Northern Maine
- Stoker Coal Boiler: Keystoker K6
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by sterling40man » Sun. Jan. 15, 2012 4:41 pm
-13* this morning and didn't get above 2* all day. It's now -2*. Burning some coal now!