Grate grief

Re: Grate grief

PostBy: coaledsweat On: Sat Jan 19, 2008 12:12 am

Wood'nCoal wrote:Now it's got 4 bolt mains. Can you post a picture of the whole boiler, I would like to see what it looks like.
Thanks.


I suppose its about time for a pic. I'll get one up in the pics thread.

This boiler is very well made, but it seems like the coal was an afterthought. The firebrick on the sides lay at an angle and also rest on the grate frames, no problem on the sides. On the ends, the three bricks are vertical and have to be held in near the top with straps of steel. These do not last long in a coal fire, believe me. To top it off, the ends of the grates are actually under the firebrick. When you shake it it tends to nudge them around and you know where this is going. Bowed bars, cracked brick and brick edging out of place. This things getting an overhaul or replacement.

When I was fiddling around, I found two 1/2" holes in the top of the airbox that feeds the ashpit, gadzooks the dreaded overfire air! Tapped them for 5/8" NC and plugged them. I hope it improves my burn, we'll see.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: Grate grief

PostBy: Wood'nCoal On: Sat Jan 19, 2008 12:19 am

I have a few cracked firebrick in the Harman, one nasty one by the rear grate pivot on the left side, broken in three pieces. It happened last year when I had that crappy coal and the grates jammed and I yanked the shaker lever a little too hard.
Some new fire bricks are in order here too.
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: Grate grief

PostBy: coaledsweat On: Mon Jan 21, 2008 10:37 am

coaledsweat wrote:When I was fiddling around, I found two 1/2" holes in the top of the airbox that feeds the ashpit, gadzooks the dreaded overfire air! Tapped them for 5/8" NC and plugged them. I hope it improves my burn, we'll see.


It looks like I am burning a little less coal and I know there is a lot less ash. Seems like the breakdown let me in on a little something. It took 36 years for this revision to come up, I'll speak to the engineering department. :)
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

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