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Post by canaldweller on Jul 18, 2016 16:58:47 GMT
Over the years I have, on the other channel, read many threads concerning stoves. What never seems to get mentioned is that concrete stuff that builds up at the bottom end of the stove pipe. This is what it looks like with the throat plate removed: i.imgur.com/bpEqoCZ.jpgThis is the top of the throat plate: i.imgur.com/Ka1dhBF.jpgUsually about halfway through the season I have to remove the throat plate and clean this stuff off and chip away at the concrete stuff at the bottom of the stove pipe. Does nobody else have this problem? More importantly what can I do to stop it or, at least reduce the build up? (Crossing my fingers and toes that the photos work)
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Post by JohnV on Jul 18, 2016 17:05:22 GMT
Your photo's are fine but I have never had this problem. What fuel are you using ?
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Post by Saltysplash on Jul 18, 2016 17:12:20 GMT
Likewise, never come across this, are you burning damp wood? i can only think its some form of tar build up
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Post by haulierp on Jul 18, 2016 17:17:31 GMT
Over the years I have, on the other channel, read many threads concerning stoves. What never seems to get mentioned is that concrete stuff that builds up at the bottom end of the stove pipe. This is what it looks like with the throat plate removed: i.imgur.com/bpEqoCZ.jpgThis is the top of the throat plate: i.imgur.com/Ka1dhBF.jpgUsually about halfway through the season I have to remove the throat plate and clean this stuff off and chip away at the concrete stuff at the bottom of the stove pipe. Does nobody else have this problem? More importantly what can I do to stop it or, at least reduce the build up? (Crossing my fingers and toes that the photos work) I just simply do as you do,I burn Exel on a Morso Squirrel but have had the same issue with Taybrite.The dead giveaway when the flue need cleaning is that smoke billows out the stove front when lighting.I clean the flue at least once a year.Not the answer you were looking for perhaps,but you are not alone as they say.
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Post by canaldweller on Jul 18, 2016 17:41:08 GMT
Likewise, never come across this, are you burning damp wood? i can only think its some form of tar build up No, not wood just smokeless fuel. This stuff isn't tarry at all. It is literally like concrete and chips off in lumps. I did, at one time, burn unseasoned wood but that just resulted in the stove pipe getting blocked with this crumbly sort of stuff. Poking a long stick down the pipe would clear it till the next time. I don't have the room or the inclination to store wood until it seasoned . Also, bear in mind that, once it's lit, the stove doesn't go out till the end of the season. I don't know if that is relevant or not.
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Post by JohnV on Jul 18, 2016 17:56:56 GMT
I'm afraid I can't be any help with this one, my stove in the saloon is a true woodburner and won't handle solid fuel and the Rayburn although running on smokeless fuel is a different construction from normal stoves and neither have ever suffered from this problem. The Rayburn does build up some very hard clinker on the riddle that has to be cleaned off fairly frequently but that is big glassy lumps that break up quite easily.
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Post by ammodels on Jul 18, 2016 18:19:14 GMT
I think it might be from unseasoned resinous wood, the resin burns out as a gas but incomplete combustion means it gathers on the relatively cooler surfaces and then further calcifies almost to this state under continued high temperature from the fire.
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Post by JohnV on Jul 18, 2016 18:29:56 GMT
I think it might be from unseasoned resinous wood, the resin burns out as a gas but incomplete combustion means it gathers on the relatively cooler surfaces and then further calcifies almost to this state under continued high temperature from the fire. He's already said he only burns smokeless fuel not wood
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Post by canaldweller on Jul 18, 2016 18:40:34 GMT
Over the years I have, on the other channel, read many threads concerning stoves. What never seems to get mentioned is that concrete stuff that builds up at the bottom end of the stove pipe. This is what it looks like with the throat plate removed: i.imgur.com/bpEqoCZ.jpgThis is the top of the throat plate: i.imgur.com/Ka1dhBF.jpgUsually about halfway through the season I have to remove the throat plate and clean this stuff off and chip away at the concrete stuff at the bottom of the stove pipe. Does nobody else have this problem? More importantly what can I do to stop it or, at least reduce the build up? (Crossing my fingers and toes that the photos work) I just simply do as you do,I burn Exel on a Morso Squirrel but have had the same issue with Taybrite.The dead giveaway when the flue need cleaning is that smoke billows out the stove front when lighting.I clean the flue at least once a year.Not the answer you were looking for perhaps,but you are not alone as they say. yeah. We know when it needs sorting when the co alarm goes off. It does give some relief to know we're not alone.
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Post by ammodels on Jul 18, 2016 18:40:37 GMT
I think it might be from unseasoned resinous wood, the resin burns out as a gas but incomplete combustion means it gathers on the relatively cooler surfaces and then further calcifies almost to this state under continued high temperature from the fire. He's already said he only burns smokeless fuel not wood I read that and then for some reason completely ignored it. It does look like the stuff we used to get from burning parquet flooring as well, if you get the fire hot enough its what happens to the tar off the back. But as its smokeless I dont think there is a high tar content either. Being smokeless fuel it seems strange it leaves any sort of residue inside the stove other than ash.
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Post by tadworth on Jul 18, 2016 19:13:21 GMT
One guess from me is that the area above the baffle plate is not getting hot enough, and the junk they bulk out smokeless nuggets with is condensing / collecting there.
I've seen crusty deposits like that in stoves I've rebuilt, but never to that extent. You could measure the flue temperature at the collar, and see if its drastically low, say under 200 deg C with a good fire burning ?
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Post by canaldweller on Jul 18, 2016 20:07:34 GMT
One guess from me is that the area above the baffle plate is not getting hot enough, and the junk they bulk out smokeless nuggets with is condensing / collecting there. I've seen crusty deposits like that in stoves I've rebuilt, but never to that extent. You could measure the flue temperature at the collar, and see if its drastically low, say under 200 deg C with a good fire burning ? You may well be onto something there. I have noticed, in the past, that say halfway up the stove pipe it is actually wet! I haven't checked this time but will do so when the towpath changes sides.
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Post by Graham on Jul 18, 2016 20:39:09 GMT
Over the years I have, on the other channel, read many threads concerning stoves. What never seems to get mentioned is that concrete stuff that builds up at the bottom end of the stove pipe. This is what it looks like with the throat plate removed: i.imgur.com/bpEqoCZ.jpgThis is the top of the throat plate: i.imgur.com/Ka1dhBF.jpgUsually about halfway through the season I have to remove the throat plate and clean this stuff off and chip away at the concrete stuff at the bottom of the stove pipe. Does nobody else have this problem? More importantly what can I do to stop it or, at least reduce the build up? (Crossing my fingers and toes that the photos work) I run a Morso 1410 at home and burn Anthracite and have tried over the last 8 years most solid fuels. One of the things I have found when riddling the stove dust etc is carried by the rising air etc up and onto the throat plate and that needs a quick cleaning once a month. I am wondering if the fuel you are using is slightly damp. If it is that could be the cause of the dust forming 'concrete' Important fuel is dry to get only easily brushable dust on the throat plate. Just a thought you say once light it never goes out until the end of the season. Suggest that it is let out once a week as the buildup of dust from the fuel need cleaning out
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Post by canaldweller on Jul 19, 2016 0:46:20 GMT
Over the years I have, on the other channel, read many threads concerning stoves. What never seems to get mentioned is that concrete stuff that builds up at the bottom end of the stove pipe. This is what it looks like with the throat plate removed: i.imgur.com/bpEqoCZ.jpgThis is the top of the throat plate: i.imgur.com/Ka1dhBF.jpgUsually about halfway through the season I have to remove the throat plate and clean this stuff off and chip away at the concrete stuff at the bottom of the stove pipe. Does nobody else have this problem? More importantly what can I do to stop it or, at least reduce the build up? (Crossing my fingers and toes that the photos work) I run a Morso 1410 at home and burn Anthracite and have tried over the last 8 years most solid fuels. One of the things I have found when riddling the stove dust etc is carried by the rising air etc up and onto the throat plate and that needs a quick cleaning once a month. I am wondering if the fuel you are using is slightly damp. If it is that could be the cause of the dust forming 'concrete' Important fuel is dry to get only easily brushable dust on the throat plate. Just a thought you say once light it never goes out until the end of the season. Suggest that it is let out once a week as the buildup of dust from the fuel need cleaning out Thanks for your help. Running a stove on land is different to running a stove on a boat. The reason being the length of the stove pipe. Unfortunately there's not a lot I can do about that. The same goes for the damp fuel. The fuel will be as dry or as wet as the weather is on the day it was bagged. We have had bags where I have had to cut the bottom corner to drain the excess water off. So there's not much I can do about either. As for letting it go out once a week - not a chance I'm afraid. The fact that I have to let it out once during the season is bad enough. I couldn't put up with that frosty reception, from the missus once a week.
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Post by haulierp on Jul 19, 2016 4:43:24 GMT
Its quite surprising to me that some boaters on the thread don't seem to have had the problem,I certainly have found the issue commonplace with most just removing the plate and cleaning accordingly once a year in the summer. I have never gave much thought to the cause,just seeing it as routine maintenance.
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