Rotten Eggs

Rotten Eggs

PostBy: heatwithcoal On: Wed Dec 18, 2013 2:13 pm

I am at work and wife called to tell me it smells like rotten eggs in basement:
CO is at zero
draft at .03
AK110 temp directly above door is 200f
coaltrol MIN at 5
FR 1
damper not open
burning buckwheat.
Is the stove not hot enough for the exhaust to make it up the chimney (28' clay)? It is 30* outside.
I had her turn the MIN up to 8
Hopper is full
Thoughts? Ideas?
Last edited by heatwithcoal on Wed Dec 18, 2013 2:55 pm, edited 1 time in total.
heatwithcoal
 
Hot Air Coal Stoker Furnace: AK-110
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: AK-110

Re: Rotten Eggs

PostBy: titleist1 On: Wed Dec 18, 2013 2:24 pm

crack a window or open a door in the basement while increasing the stove output. keep a close eye on the CO monitor and if it registers any numbers at all it should be shut down until you can look at it for the cause. maybe get a second CO monitor from elsewhere in the house down there to make sure the current monitor is not bad.
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: Rotten Eggs

PostBy: McGiever On: Wed Dec 18, 2013 5:38 pm

Don't leave your upstairs UN-monitored for CO for more than a short time...CO is odorless. Don't let your guard down.
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Re: Rotten Eggs

PostBy: WNY On: Wed Dec 18, 2013 5:56 pm

Could be your draft is too low on IDLE, raise the MIN up to 8, 10, 12, get it to burn a little hotter to start.

Or just bump the temp setpoint up a degree or two to get it to burn a little hotter. If the smell continues when burning normally, something is wrong.

Are you getting any moisture in the hopper? how far back is it burning on the grates. You may have a gasket leak somewhere.

Did you set up your baro damper with a draft gauge?
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Rotten Eggs

PostBy: grumpy On: Wed Dec 18, 2013 6:13 pm

Maybe you do have rotten eggs there..just kidding but are you sure its the stove. I came home yesterday parked in the garage, got out of the truck and smelled silicon, so I thought. I could not figure out what would smell like that nor where it would come from.

Then I found a gallon of vinegar that froze and was leaking.. just saying, don't assume anything.
grumpy
 

Re: Rotten Eggs

PostBy: Flyer5 On: Wed Dec 18, 2013 6:33 pm

What is the CFT set at. I had 1 doing this and the CFT was 0. At idle there was hardly any heat in the chimney. The other possibility is. Is there enough make up air for the room that it is in? If the convection fan does not have enough return coming from upstairs it may pull a little on the baro. Maybe not enough for measurable CO but enough for the smell.
Flyer5
 
Stoker Coal Boiler: Leisure Line WL110
Hot Air Coal Stoker Stove: Leisure Line Pioneer

Re: Rotten Eggs

PostBy: grumpy On: Wed Dec 18, 2013 6:43 pm

McGiever wrote:Don't leave your upstairs UN-monitored for CO for more than a short time...CO is odorless. Don't let your guard down.


If CO is odorless, and I never smelled rotten eggs burning coal, again sure its the stove.
grumpy
 

Re: Rotten Eggs

PostBy: Lightning On: Wed Dec 18, 2013 6:48 pm

The rotten egg smell is sulfur dioxide usually accompanied with a variable level of CO if its coming from the coal burner. Keep watch on the detectors..

From Wiki:
Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2. At standard atmosphere it is a toxic gas with a pungent, irritating and rotten smell. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide unless the sulfur compounds are removed before burning the fuel.
Last edited by Lightning on Wed Dec 18, 2013 6:55 pm, edited 1 time in total.
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut/Stove Size Mix

Re: Rotten Eggs

PostBy: grumpy On: Wed Dec 18, 2013 6:55 pm

Lightning wrote:The rotten egg smell is sulfur dioxide usually accompanied with a variable level of CO if its coming from the coal burner. Keep watch on the detectors..

Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2. At standard atmosphere it is a toxic gas with a pungent, irritating and rotten smell.



I did not know that, thanks for that info.
grumpy
 

Re: Rotten Eggs

PostBy: Carbon12 On: Wed Dec 18, 2013 7:04 pm

I noticed in my old hand fed that if I pulled wet coal off the pile outside and tossed it in the stove an instantaneous belch of rotten egg scented gas would emanate from the stove even before I could close the loading door. Water flashing to steam carrying sulfur dioxide goodness I assumed.
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: Rotten Eggs

PostBy: heatwithcoal On: Wed Dec 18, 2013 8:36 pm

Thanks for all the responses. I think i found the problem:

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20131218_183556.jpg
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6" pipe exiting stove
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pipe was choked down to almost half with all the fly ash.

I cleaned it out and refired. See what happens.
I have 2 CO alarms in basement and a few upstairs and all were at zero when I got home to investigate.
The past few days I thought I may have smelled something but wasn't sure.
I have a cold-air supply line from outside to combustion fan because the house is tight.
Should be noted that i have 3-90 elbows of stove pipe to get to the chimney.

Mark
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heatwithcoal
 
Hot Air Coal Stoker Furnace: AK-110
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: AK-110

Re: Rotten Eggs

PostBy: Carbon12 On: Wed Dec 18, 2013 9:48 pm

Yikes! Checking my pipe tomorrow!!!
Carbon12
 
Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

Re: Rotten Eggs

PostBy: freetown fred On: Wed Dec 18, 2013 11:12 pm

Dude, when's the last time you cleaned that pipe out??????????????????????? Do you have any kind of a damper between the stove & the build up?
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Rotten Eggs

PostBy: Wood'nCoal On: Wed Dec 18, 2013 11:26 pm

Oh my!!!!! :shock:
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: Rotten Eggs

PostBy: SMITTY On: Thu Dec 19, 2013 12:01 am

Sounds like you've got the same chimney getup that I've got. And the same problems. I get the rotten egg stench quite often .. then the screaming CO detector shortly after.

I choked off the combustion air on mine .. but mine is an entirely different animal than what you've got. In other words, what works for me, won't work for you.

I'm willing to bet my pipe probably looks just like that after almost 2 months of burning. Have knocked quite a bit of flyash out of the firetube baffles over the past 2 months. Can only imagine what's in that pipe.

If it gets any worse I may have to break down and clean the thing. :lol:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
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