Can a crack in my grate cause a hopper fire?

Can a crack in my grate cause a hopper fire?

PostBy: vegeta_ban On: Wed Dec 26, 2012 2:39 pm

I have a Liesure Line Pocono bottom vent and there was a hairline crack in the grate at the start of the season. I woke up to a chilly house this morning 64F when it's normally 70 to 72. when I went to the stoker I noticed a very bright spot in the center of the grate. That is where the crack was. The stove is running at 100F less than it normally does. It appears the flame may be traveling back towards the hopper. any suggestions or ideas?
Thank you as always.
vegeta_ban
 
Hot Air Coal Stoker Stove: Leisure Line Pocono bottom vent
Coal Size/Type: Rice is so nice
Other Heating: Oil, yuk on the price

Re: Can a crack in my grate cause a hopper fire?

PostBy: hcarlow On: Wed Dec 26, 2012 3:27 pm

I would call Matt or Dave at leisure line and they will tell you exactly what you need to do .
hcarlow
 
Stoker Coal Boiler: Leisure Line WL 110

Re: Can a crack in my grate cause a hopper fire?

PostBy: Rob R. On: Wed Dec 26, 2012 5:24 pm

hcarlow wrote:I would call Matt or Dave at leisure line and they will tell you exactly what you need to do .


Excellent advice. Call 'em up.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

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Re: Can a crack in my grate cause a hopper fire?

PostBy: Matthaus On: Mon Dec 31, 2012 4:43 am

A cracked grate should not in itself cause a hopper fire, it may casue some uneven burning as you have expereinced. The lower temps could be casued by other things such as coal quality, and using wet coal (usually the cause for a cracked grate). Give us a call at 570-752-1811, we would like to discuss this with you further and get it solved! :)
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: Can a crack in my grate cause a hopper fire?

PostBy: dcrane On: Mon Dec 31, 2012 8:24 am

hairline crack in the middle of a stainless steel stoker grate... (my advise would be to replace the grate at your earliest convenience because that crack wont take long to expand/warp and distort), My experience is that Ive never been able to get long term use from a cracked stainless grate (even after tig welding the weld would eventually crack again because the center of the stoker grate is susceptible to such a high/defined degree of heat the weakened area around the weld eventually gives way under the pressures). I do hope their is a solution for you im unaware of but i feel i should at least give you my minimal experience that I've encountered with stainless steel stoker grates. The customer service at Leisure Line seems to be fantastic so im sure they will do everything possible for you!
dcrane
 
Hand Fed Coal Stove: Crane 404

Re: Can a crack in my grate cause a hopper fire?

PostBy: baddawg On: Mon Dec 31, 2012 8:36 am

The grate is SS?
baddawg
 
Hot Air Coal Stoker Furnace: Leisure Line Pioneer

Re: Can a crack in my grate cause a hopper fire?

PostBy: Flyer5 On: Mon Dec 31, 2012 9:58 am

baddawg wrote:The grate is SS?




No, they are grey ductile cast iron.
Flyer5
 
Stoker Coal Boiler: Leisure Line WL110
Hot Air Coal Stoker Stove: Leisure Line Pioneer

Re: Can a crack in my grate cause a hopper fire?

PostBy: mcrchap On: Fri Jan 04, 2013 11:20 pm

Sure. That will let more air up into the chamber. Take the grate out and get it brazed, or you could try to cement it for a temporary fix. Sounds like you had a really hot fire in the stove to cause the crack. maybe too much draft to begin with.
mcrchap
 
Hot Air Coal Stoker Furnace: Keystoker A 90
Coal Size/Type: rice
Other Heating: New Yorker Oil boiler
Stove/Furnace Make: keystoker
Stove/Furnace Model: Econo

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