Damaged my Harman 1500A (warped shaker grates)

Damaged my Harman 1500A (warped shaker grates)

PostBy: 70marlin On: Wed Feb 15, 2012 1:29 pm

I think I may need some help on setting up my furnace. Burnt none stop for two weeks. Shut down furnace for a good cleaning and noticed that my shaker grates were warped? (Kind of sagged) think I was running a little too much air. Bottom ash chamber door air control is set at half a hole. (Door has twin holes) Burn chamber air control at 1/2 turn out. (The door has twin air controls.) Any help would be appreciated!
70marlin
 
Stove/Furnace Make: Harman
Stove/Furnace Model: SF 1500A

Re: Damaged my Harman 1500A (warped shaker grates)

PostBy: LsFarm On: Thu Feb 16, 2012 1:30 am

What causes grates to sag is haveing the ash pan full, and touching the bottom of the grates.
The grates are cooled by the incoming combustion air, if this air is blocked by too much ash, the grates overheat.

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: Damaged my Harman 1500A (warped shaker grates)

PostBy: freetown fred On: Thu Feb 16, 2012 8:49 am

If you can still shake it down, I'd let it go till spring. It's only as complicated as we make it. NOTE Ls's post above. ;)
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Visit Lehigh Anthracite

Re: Damaged my Harman 1500A (warped shaker grates)

PostBy: 70marlin On: Thu Feb 16, 2012 11:11 am

Guilty as charged, The Harman has a large ash pan and I tend to get lazy and let it get over full of ash. I’ll give it a try to see if I can keep coal from falling through the shaker grates one grate warped real bad, but spring isn’t all that far away. Thank you for such a quick answer.
70marlin
 
Stove/Furnace Make: Harman
Stove/Furnace Model: SF 1500A

Re: Damaged my Harman 1500A (warped shaker grates)

PostBy: jrn8265 On: Tue Feb 21, 2012 1:53 pm

Greg L, awesome point here and I never thought about this!

Does a full ash pan effect a koker the same way? Possible warped grates?

Thank you!
jrn8265
 
Stove/Furnace Make: Keystoker Koker
Stove/Furnace Model: Koker 160

Re: Damaged my Harman 1500A (warped shaker grates)

PostBy: freetown fred On: Tue Feb 21, 2012 7:37 pm

Any stove.
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Damaged my Harman 1500A (warped shaker grates)

PostBy: Lightning On: Fri Feb 24, 2012 4:50 am

As naughty as it sounds, I dump every time I shake it.... :lol:
Lightning
 
Hand Fed Coal Furnace: Clayton 1537G
Coal Size/Type: Nut Size / White Ash

Re: Damaged my Harman 1500A (warped shaker grates)

PostBy: TractorDre On: Mon Mar 05, 2012 7:21 pm

Lightning wrote:As naughty as it sounds, I dump every time I shake it.... :lol:



TMI.

:lol:
TractorDre
 
Hand Fed Coal Stove: Efel Ambassador and Montana//Harman Mark 1
Baseburners & Antiques: Atlantic Kitchen stove #40
Coal Size/Type: Pea
Other Heating: oil

Re: Damaged my Harman 1500A (warped shaker grates)

PostBy: TractorDre On: Mon Mar 05, 2012 7:26 pm

When I first got the Harman. I was using pea coal and found out how much the grates opened up.

Yep. It emptied into the ash pan an jammed everything up. Had to closed the intake and dig it out from the top after it choked itself out.

Every stove is different. It' always a learning curve for everyone of them.
TractorDre
 
Hand Fed Coal Stove: Efel Ambassador and Montana//Harman Mark 1
Baseburners & Antiques: Atlantic Kitchen stove #40
Coal Size/Type: Pea
Other Heating: oil

Visit Lehigh Anthracite