Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: titleist1 On: Fri Feb 08, 2013 2:20 pm

good pic, your plate is open further than mine. Is that fan all the way in the slot it is supposed to fit into?

That pic i posted below is what the fire is supposed to look like when on full burn. your combustion air must be going someplace other than through the grates. Does that controller have a variable speed control on the combustion fan? mine does not, it is either on or off. take the fan off and plug it in and see if it is pushing a lot of air out of the squirrel cage.

just throwing out some ideas.......
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: zags5274 On: Fri Feb 08, 2013 4:16 pm

Titleist1 the pic was not posted. I open the baffle plate on the combustion fan and the flame has increased. I am going run the stove for awhile to see if the temperature increases and to see how the coal burns. Thanks for all the advice so far I appreciate it. The combustion fan has a high and low level.
zags5274
 
Stove/Furnace Make: Harman
Stove/Furnace Model: Magnum Stoker

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: llama99 On: Fri Feb 08, 2013 4:22 pm

2 Harmon working 2_7_13.JPG
(116.35 KiB) Viewed 28 times
View: New PagePopup • Select:BBCode
[nepathumb]40394[/nepathumb]
Here is mine today. I think it looks farther back than it really is- coals turn grey about 2-2 1/2" from the edge. Is this good?
llama99
 
Hot Air Coal Stoker Stove: Harman Magnum Stoker
Coal Size/Type: rice
Stove/Furnace Make: Harman
Stove/Furnace Model: Magnum Stoker

Visit Lehigh Anthracite

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: titleist1 On: Fri Feb 08, 2013 4:46 pm

zags5274 wrote:Titleist1 the pic was not posted.


my bad, when i said "below" i meant the pic in the other post, i didn't post a second pic.

I did take a pic of the stoker in the basement, had to open the door because the glass in that one is etched more and you can't see the flame very well when the door is closed. I noticed opening the door knocked the flame down a good bit, but not nearly as low as your is.

ash is about 1" from the end of the grates.

IMG_0036[1].JPG
(209.96 KiB) Viewed 28 times
View: New PagePopup • Select:BBCode
basement stoker, full burn, door open...when door was closed it looked like the workshop stoker pic.
[nepathumb]40403[/nepathumb]
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: titleist1 On: Fri Feb 08, 2013 4:48 pm

llama99 wrote: coals turn grey about 2-2 1/2" from the edge. Is this good?


mine is closer to the edge of the grates....only about an inch of gray.
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: eelhc On: Fri Feb 08, 2013 8:55 pm

I have my combustion blower on 24x7 on a fan speed control. Burns much better.

Harman Magnum Stoker Installation
eelhc
 
Stove/Furnace Make: Harman Magnum Stoker

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: Krugenator On: Mon Feb 18, 2013 6:02 pm

Cover plate on the combustion blower does prevent blowback of coal gas through the hopper by reducing the air flow, but this also reduces the size of the flame and the heat output. I've had my Magnum Stoker for 20 plus years. In our older smaller house I had no problem with the draft with no cover over the combustion blower. Then we built a 2500 ft2 ranch and put the stove in the basement. I immediately had coal gas coming out of the hopper. I believe that newer homes are built so darn air tight that blowing air up the chimney puts the house under negative pressure preventing all of the air from going up the chimney. Some gets blown out the hopper. I installed a 2" PVC pipe to the outside and fastened it up against the combustion blower intake. I also removed the cover plate from the blower so it runs unobstructed and I have no problem with blow back. It also makes more sense to draw combustion air in from the outside rather than draw in room air that you paid to heat only to blow it up the chimney.
Krugenator
 
Stove/Furnace Make: Harman
Stove/Furnace Model: Magnum Stoker

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: captcaper On: Mon Apr 08, 2013 8:00 am

zags5274 wrote:Titleist1 the pic was not posted. I open the baffle plate on the combustion fan and the flame has increased. I am going run the stove for awhile to see if the temperature increases and to see how the coal burns. Thanks for all the advice so far I appreciate it. The combustion fan has a high and low level.


Zags

How did you make out? Give me an update. I bought a Super Mag as well and this post has been informative so far. You had service men coming?
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: zags5274 On: Mon Apr 08, 2013 3:49 pm

The servicemen did not show, because I got the stove running very well. I bought a manometer and that corrected the drafting issue but I also had to open the flap on the blower to give it more air.
zags5274
 
Stove/Furnace Make: Harman
Stove/Furnace Model: Magnum Stoker

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: LsFarm On: Mon Apr 08, 2013 4:32 pm

Glad to hear your stove is working better for you.. In interest of learning more about what was 'wrong' and what was done to fix the problem, could you share more about the 'fix' ??

What was your draft before you adjusted the baro? And after?
How far open was the flapper on the combustion blower? and where is it now?
Do you have a photo of the fire now with the adjustments done?

Thanks,,
Greg L
LsFarm
 
Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: captcaper On: Tue Oct 22, 2013 7:31 am

LsFarm wrote:Glad to hear your stove is working better for you.. In interest of learning more about what was 'wrong' and what was done to fix the problem, could you share more about the 'fix' ??

What was your draft before you adjusted the baro? And after?
How far open was the flapper on the combustion blower? and where is it now?
Do you have a photo of the fire now with the adjustments done?

Thanks,,
Greg L


I like this post. Good to know the outcomes and experiences.
I just fired up my brand new Super Mag Sunday and being new to stokers it's been quite a ride. I am impressed so far..I'm so glad it idles down real low in these fall temps so I don't get overheated in my work area were the stove is.
But I'm still not sure on how to run these "combustion flaps" ..some guys open it right up and others have it closed down to about 1/4 open. Mine came from Harman about 1/4..
I am getting the picture though that maybe once the real cold comes in and stove is putting out steady high heat I can tune it in between the manometer,baro,flap. And I realize every home,chimney etc. affects the stoves behavior.
On my manometer now it is around .05 when it is running hot (hooked to low side for easier reading) Harman says .04 to .08. But I'm in the ball park. I too had red coals going over the edge so I trimmed back the feed to 3 and it seemed to help. But it's so mild here the stove hasn't turned on for heat much at all. It is idling/burning with a small 2 in wide area going side to side with a large pile of ash in front of it. But when it run's hot it pushes the ash pile off the grate. So that must be the way it's supposed to run.
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Re: Difficulty getting HARMAN MAGNUM STOKER COAL STOVE to run...

PostBy: captcaper On: Tue Oct 22, 2013 7:31 am

LsFarm wrote:Glad to hear your stove is working better for you.. In interest of learning more about what was 'wrong' and what was done to fix the problem, could you share more about the 'fix' ??

What was your draft before you adjusted the baro? And after?
How far open was the flapper on the combustion blower? and where is it now?
Do you have a photo of the fire now with the adjustments done?

Thanks,,
Greg L


I like this post. Good to know the outcomes and experiences.
I just fired up my brand new Super Mag Sunday and being new to stokers it's been quite a ride. I am impressed so far..I'm so glad it idles down real low in these fall temps so I don't get overheated in my work area were the stove is.
But I'm still not sure on how to run these "combustion flaps" ..some guys open it right up and others have it closed down to about 1/4 open. Mine came from Harman about 1/4..
I am getting the picture though that maybe once the real cold comes in and stove is putting out steady high heat I can tune it in between the manometer,baro,flap. And I realize every home,chimney etc. affects the stoves behavior.
On my manometer now it is around .05 when it is running hot (hooked to low side for easier reading) Harman says .04 to .08. But I'm in the ball park. I too had red coals going over the edge so I trimmed back the feed to 3 and it seemed to help. But it's so mild here the stove hasn't turned on for heat much at all. It is idling/burning with a small 2 in wide area going side to side with a large pile of ash in front of it. But when it run's hot it pushes the ash pile off the grate. So that must be the way it's supposed to run.
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Visit Lehigh Anthracite

cron