Pictures of Your Stove

Re: Pictures of your stove

PostBy: 1975gt750 On: Sun Feb 03, 2008 3:49 pm

i like the idea of the slowing down the combution blower during idle time have you noticed a diffrence in coal usage and stack temp. I have a kaa-2 keystoker boiler and my combution blower runs one speed all the time. I notice at idle my stack temp is 100-150 degrees and at full fire it is 250-300 degrees. do your mumbers relate to mine
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: Highlander On: Sun Feb 03, 2008 6:12 pm

i like the idea of the slowing down the combution blower during idle time have you noticed a diffrence in coal usage and stack temp. I have a kaa-2 keystoker boiler and my combution blower runs one speed all the time. I notice at idle my stack temp is 100-150 degrees and at full fire it is 250-300 degrees. do your mumbers relate to mine


Chris

Its hard to tell exactly how much the flue temperature drops when the blower cuts back to idle, I'm sure it does, but I haven't measured it between cycles. My cycle time is 7 minutes or 420 seconds total. The on time varies from a low of 30 seconds to a high of 410 seconds. When it idles for a while, the temp drops dramatically, the fire will burn down to a ribbon across the back, maybe an inch or so wide. The exhaust temp is so cool you can stick your hand in it.

The speed control I used was from Lowes, its meant to control a paddle fan or some other small motor but it works fine with the combustion blower on the Harman. If your blower runs all the time, you would probably need to add a relay that is on when the stoker is on. You could then use the contact to bypass the speed control when the unit stokes, and cut back to the idle speed when its not.

Hope this helps

Bill
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: 1975gt750 On: Sun Feb 03, 2008 9:40 pm

thanks for the info I could wire a spdt relay and it would work just fine. I am just wondering if it is worth it . my timer runs evey 10 minutes for 90 second to maintain the fire. if you could can you posiblly check what your stack temps are with the blower running normally and then with the blower running controlled and see what the diffrence is and let me know I would be curious to know.
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: CoalHeat On: Sun Feb 03, 2008 10:02 pm

Very nice, Highlander!
CoalHeat
 
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

Re: Pictures of your stove

PostBy: coalstoves On: Mon Feb 04, 2008 1:44 am

I truly applaud your work Highlander an actual Smart control.

What do estimate the cost of components for the control and sensor array
coalstoves
 
Stove/Furnace Make: Harman and Liberty
Stove/Furnace Model: Magnum and Victory 700

Re: Pictures of your stove

PostBy: Highlander On: Mon Feb 04, 2008 11:21 pm

Thanks again for all the kind words.
Coalstoves, the PLC and temperature transmitter were demo stock, but I would estimate it at less than $300 for the components. The outside air temp sensor was a Velleman electronics kit, cost about $20 online. It didn't have the higer temp range needed to monitor boiler water, but is fine for ambient air temperature.

Chris, I'm on the road now, but I will try and see if I can measure a difference between the full and partial blower temps when I get back.
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: Wotseurba On: Thu Feb 07, 2008 3:24 pm

In my case this will be a pictures of my system. Other photos of this project are in the thread "Better Late than Never" in the Stokers section.

A "brief" discription. As can be seen in my avitar, I have a good size house, and a 40 x 60 workshop out back. When I built the shop building, I put in radiant tubes in the concrete for heat, with the heat source to be determined later. I researched most viable boilers, and various fuels. I finally settled on an AHS Coalgun, S-130. I also have an oil fired boiler in the system (not yet ready for use) that will serve as back-up if the coal fire goes cold, if I'm out of town etc. There's an underground pair of insulated pipes leading to the house for integration to my heating system there. I'm using a Tekmar 2 stage boiler control with outdoor reset, it monitors outdoor temp, coal boiler temp, shop room temp, and a few other attributes. If the system temperature falls below a preset value, (i.e coal fire goes out) the oil boiler will take over and keep things going. I used a Tekmar variable speed mixing controller to mix down the boiler temp to the required temp which is then sent through the shop floor tubes. The shop is on priority, which means even if the house were to call for heat, the house will get none, until the shop is satisfied. I have two additional zone take-offs ready to use as needed. I still have a few details to complete for the oil boiler, and some wiring clean-up to do. I started up the S-130 last weekend, with very little effort. The shop was a COLD 34 when starting, burned about 300# of coal as of today just to warm up the 35 yrds of concrete and all of the items inside the shop. Now up to 62 degrees, which is more than warm enough for me. I will now begin tracking coal usage to maintain the temp of the shop. The house integration is still a few weeks away.
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Dual Boiler Setup and Control Board from inside boiler room
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Shop Side Circulator Unit & Manifolds
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Wotseurba
 
Stove/Furnace Make: Alternate Heating Systems
Stove/Furnace Model: S-130

Re: Pictures of your stove

PostBy: coal-cooker On: Sat Feb 23, 2008 6:38 pm

My Crane Coal-cooker, purchased used in 1985 and still going strong.
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Crane Coal-Cooker in my camp basement
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coal-cooker
 
Stove/Furnace Make: Crane/Harman
Stove/Furnace Model: Coal Cooker/Mark II


Re: Pictures of your stove

PostBy: gutts On: Tue Feb 26, 2008 5:26 pm

Anybody know what this is [ha ha] !!
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gutts
 
Stove/Furnace Make: jenson
Stove/Furnace Model: not sure[1981]

Re: Pictures of your stove

PostBy: SJ Coal On: Mon Mar 03, 2008 6:25 pm

Fairly new to the forum, thought I would post a picture of my stove.

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SAEY Hannover I, 14yrs Old
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Believe it or not the stove was free. The chimney was not (ouch!).
SJ Coal
 
Stove/Furnace Make: SAEY
Stove/Furnace Model: Hannover I

Re: Pictures of your stove

PostBy: cheapheat On: Mon Mar 03, 2008 7:38 pm

Very nice tiles you have there SJ. Jim
cheapheat
 
Stove/Furnace Make: Alaska Channing 3
Stove/Furnace Model: Bagging my own rice coal

Re: Pictures of your stove

PostBy: beemerboy On: Mon Mar 17, 2008 3:55 pm

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Second day with the Hannover 1.

When the weather warms up I may repaint it a high temp gray (to match the dust). ;)
beemerboy
 
Stove/Furnace Make: SAEY
Stove/Furnace Model: Hannover 1

Re: Pictures of your stove

PostBy: extreme915 On: Tue Mar 25, 2008 9:04 pm

Here is a pic of my Keystoker Koker, I hooked it up today and I love it already.
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extreme915
 
Stove/Furnace Make: Keystoker Koker

Re: Pictures of your stove

PostBy: coalkirk On: Tue Mar 25, 2008 9:36 pm

I'm curious why you didn't go with a boiler since I see you have hydronic heat?
coalkirk
 
Stoker Coal Boiler: 1981 EFM DF520
Coal Size/Type: anthracite/rice coal

Re: Pictures of your stove

PostBy: extreme915 On: Tue Mar 25, 2008 9:49 pm

Because I like hot air better ,and I got the direct vent. From the factory it has direct vent, And I only have one chimney. I was origionaly going with a boiler but I like the fact of to seporate sources of heat. Plus it was alot wasier to run a little duct work rather then plumb it pumps and stuff.
extreme915
 
Stove/Furnace Make: Keystoker Koker