Pictures of your stove

Re: Pictures of your stove

PostBy: mwcougar On: Thu Dec 27, 2007 11:44 pm

coal boiler and bin
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AHS 130
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coal bin 32 ton
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coal boiler building
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coal dumper to-35 massey
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mwcougar
 
Stove/Furnace Make: ahs 130 heating 3700sq ft

Re: Pictures of your stove

PostBy: bigchunk On: Thu Jan 17, 2008 2:53 pm

my sf250
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bigchunk
 
Stove/Furnace Make: harman
Stove/Furnace Model: sf250 magnafire

Re: Pictures of your stove

PostBy: bigchunk On: Thu Jan 17, 2008 2:57 pm

and another, this is after i topped it off before going to work.
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bigchunk
 
Stove/Furnace Make: harman
Stove/Furnace Model: sf250 magnafire


Re: Pictures of your stove

PostBy: bksaun On: Tue Jan 22, 2008 12:03 am

Alaska Channing III with Coal trol TS1

What else can I do to improve?

What about a whole house humidifier under the top heat exchanger, say a small tray about two inches deep, a fill valve with small float and inline filter?

BK
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New cold air return, runs top,bottom and both sides of stove, exits out the top, ducted to cold air return on gas furnace.
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Also into fan at rear of stove to wash heat off back of stove.
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Fresh air combustion intake, made out of flex steel and pcv. Works great.
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bksaun
 
Stoker Coal Boiler: Hybrid, Gentleman Janitor GJ-6RSU/ EFM 700
Hand Fed Coal Stove: Hitzer 503
Coal Size/Type: Pea Stoker/Bit, Pea or Nut Anthracite
Stove/Furnace Make: Hitzer/ EFM-Gentleman Janitor
Stove/Furnace Model: 503 Insert/ 700/GJ-62

Re: Pictures of your stove

PostBy: Matthaus On: Tue Jan 22, 2008 12:43 am

Nicely done BK, great example of wringing every btu out of those lil black beauties! :)

The humidifier sounds like a nice idea as long as you can put a secondary containment device to prevent spoiling all that pretty duct work with a leak. :lol:
Matthaus
 
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel, natural gas
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite

Re: Pictures of your stove

PostBy: 1975gt750 On: Mon Jan 28, 2008 3:14 pm

keystoker kaa-2 in series with my oil burner using oil boiler controls to control coal boiler
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1975gt750
 
Stoker Coal Boiler: keystoker kaa-2
Coal Size/Type: rice coal / blaschak
Other Heating: pensotti oil boiler with riello 40 burner
Stove/Furnace Make: keystoker
Stove/Furnace Model: kaa-2

Re: Pictures of your stove

PostBy: coalstoves On: Mon Jan 28, 2008 4:05 pm

What kind of unit is on the oil burner ?
coalstoves
 
Stove/Furnace Make: Harman and Liberty
Stove/Furnace Model: Magnum and Victory 700

Re: Pictures of your stove

PostBy: spc On: Mon Jan 28, 2008 7:13 pm

coalstoves wrote:What kind of unit is on the oil burner ?

It looks like a Riello oil burner.
spc
 
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: Pioneer

Re: Pictures of your stove

PostBy: 1975gt750 On: Mon Jan 28, 2008 7:48 pm

riello oil burner pensatti boiler works great if oil prices were not through the roof 3.34 a gallon here in new hampshire. with the coal i burn 35-40# in 24 hours costs me 4.25$ a day
1975gt750
 
Stoker Coal Boiler: keystoker kaa-2
Coal Size/Type: rice coal / blaschak
Other Heating: pensotti oil boiler with riello 40 burner
Stove/Furnace Make: keystoker
Stove/Furnace Model: kaa-2

Re Pictures of your stove, Harman VF3000 Boiler

PostBy: Highlander On: Sat Feb 02, 2008 10:00 pm

Hello fellow Coalburners

I started with a Harman Magnum stove, and was impressed with the quality of the product. My existing propane boiler was failing and given the ever increasing price of propane, decided to go with coal.

As with the Harman Magnum, I decided against using the simple full on or pilot mode control that Harman still ships with these units and designed a micro PLC based control system for the boiler. In many ways its similar to the Coaltrol, in that it provides a proportional control for stoker on/off time vs the idle or full on most manufacturers still cling to.

It is the same PLC, a Crouzet M2, that I used with the first Harman stove, but the program has grown substantially and includes reset control, proportional / integral control mode, a coal useage counter, a reverse anticipator fucntion, and a scrollable display for water temp, outside temp, manual control mode, Summer / Winter mode and a coal useage counter. The PLC can read 0-10V signals with 8 bits of precision, not great by todays standards, but plenty for this level of process control.

The boiler water temp is monitored by a Crouzet temperature transmitter, this unit, the grey box on top of the boiler transmits a 0-10V signal proportional to the water temp to the PLC. The outdoor temperature is monitored by a small temp sensor with a probe in the outdoor combustion air inlet. This sensor provides another 0-10V signal, that the PLC monitors and adds to the temp setpoint when the outdoor air temp starts to drop below 30 deg.

Ive reconfigured the esisting Johnson controls to provide a two tiered overtemp limit control that will initially energize the fan coil to dump excess heat, and then if the temp continues to rise, will cut power to the stoker and combustion air blower to try and bring the temperature down by cutting off the fuel supply.

Ive added an outside air supply to the combustion blower and a speed control to the blower motor. When stoking the blower runs full tilt, but then cuts back to an idle speed that helps keep a larger fire bed in times of low demand.

A small muffin fan was added to the stoker cover and is wired with the stoker motor, provides cooling to the motor during prolonged periods of operation, since thse motors can run very hot.

A Tripplite APS with a size 29 marine deep cycle battery provide 8 to 12 hours of backup time in the event of a power failure, and prove a measure of surge protection on the incoming line power.

So far Im very pleased with the operation of this unit, my coal useage for the month of January has been about 50# per day, and provides both heat and hot water for a 2000 sq ft house. During the summer months I burned about 12# per day for hot water. I estimate using between 4 and 5 tons for the year. With propane at $3 / gallon, it should have payback in 2 years for an investment of about $5000. Not too shabby.
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PLC controls small.jpg
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PLC Control System, Johson Controls S350, Crouzet M2 PLC, 24VDC PS, Comb Blwr Speed, Magnahelic diff press guage, and Crouzet temp transmitter on top.
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Boiler, w/ baro damper, PLC Controls
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Ouside air temp sensor measure incoming combustion air, yes its its in an Altoids tin.
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Highlander
 
Stoker Coal Boiler: Harman VF3000 Sold
Hand Fed Coal Stove: Vermont Castings Resolute
Coal Size/Type: Nut
Stove/Furnace Make: Harman
Stove/Furnace Model: VF3000 Stoker Boiler

Re: Pictures of your stove

PostBy: Highlander On: Sat Feb 02, 2008 10:19 pm

More VF3000 Pics
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Ouside air ducted into combustion blower
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Stoker motor cooling fan
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Fan coil in existing propane furnace with selector switch for propane or hot water coil heat
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Tripplite APS500 with deep cycle marine battery
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Zone valves with enclosure for pump relay. Note Taco pump is now 3 speed Grundfos. Kidde CO monitor
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Highlander
 
Stoker Coal Boiler: Harman VF3000 Sold
Hand Fed Coal Stove: Vermont Castings Resolute
Coal Size/Type: Nut
Stove/Furnace Make: Harman
Stove/Furnace Model: VF3000 Stoker Boiler

Re: Pictures of your stove

PostBy: Yanche On: Sat Feb 02, 2008 11:27 pm

Great job. Shows what modern electronics and some system engineering can do in extracting more efficiency out of old boilers that were likely designed by "seat of the pants" engineering. Perhaps as non coal heating costs continue to rise and Anthracite's use expands, new products will emerge. I congratulate you on your design and implementation.
Yanche
 
Stoker Coal Boiler: Alternate Heating Systems S-130
Coal Size/Type: Anthracite Pea

Re: Pictures of your stove

PostBy: coalkirk On: Sun Feb 03, 2008 8:02 am

Very nicely done. I see you have a flex hose on the intake to the combustion fan and I assume you are drawing air from outside. I also noted that the restrictor plate had been removed. I would like to do the same thing with outside air but I am reluctant to remove the restrictor plate. When I first fired my boiler 4 years ago I didn't have the restrictor plate installed and it created too much positive pressure in the boiler which made flue gases escape from the hopper. How do you compensate for that?
coalkirk
 
Stoker Coal Boiler: Harman VF3000
Coal Size/Type: antrhcite/rice coal

Re: Re Pictures of your stove, Harman VF3000 Boiler

PostBy: europachris On: Sun Feb 03, 2008 9:32 am

Highlander wrote:Hello fellow Coalburners
It is the same PLC, a Crouzet M2, that I used with the first Harman stove, but the program has grown substantially and includes reset control, proportional / integral control mode, a coal useage counter, a reverse anticipator fucntion, and a scrollable display for water temp, outside temp, manual control mode, Summer / Winter mode and a coal useage counter. The PLC can read 0-10V signals with 8 bits of precision, not great by todays standards, but plenty for this level of process control.


I have a fairly decent background in PLCs with PID control and analog I/O, mostly Allen-Bradley SLC and some DeviceNet. You've pretty much done what I've been thinking about all along - integrate modern controls with old-tech coal burning to bring it into the 21st Century. That is a really impressive setup and very well thought out. I was thinking about using a Cubloc PLC and doing something a bit similar on my Keystoker next year.

During the summer months I burned about 12# per day for hot water. I estimate using between 4 and 5 tons for the year. With propane at $3 / gallon, it should have payback in 2 years for an investment of about $5000. Not too shabby.


How much heat does the boiler add to the house? Is the house air-conditioned? Is the boiler room separate, insulated, and/or ventilated from the rest of the house? I'd be concerned about the residual heat from the boiler idling with no hot water demand most of the day adding a lot of heat to the house that must then be removed via the A/C system, especially in a modern, well insulated home. I imagine in a old home with damp, fieldstone basement or similar, that added warmth would be welcome in the summer, but in a modern home, I'm not so sure.
europachris
 
Stove/Furnace Make: EFM 350/Iron Fireman
Stove/Furnace Model: Custom bituminous burner

Re: Pictures of your stove

PostBy: Matthaus On: Sun Feb 03, 2008 10:41 am

coalkirk wrote:.. I also noted that the restrictor plate had been removed. I would like to do the same thing with outside air but I am reluctant to remove the restrictor plate...


Without the speed controller and idle mode he has built into the combustion fan circuit you can't remove the plate (IMO). :)

Highlander wrote: Ive added an outside air supply to the combustion blower and a speed control to the blower motor. When stoking the blower runs full tilt, but then cuts back to an idle speed that helps keep a larger fire bed in times of low demand.
Matthaus
 
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel, natural gas
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite