leisure line 110 coal boiler dumping constantly

You want the fire to be about an inch wide when running on the timer. You really shouldn't be adjusting the idle with the feed screw. That screw is to set the high fire rate. When you have a demand for heat and the unit is continously stoking the red coals should be covering all but the last 1" of the grate. You then adjust you idle fire by adjusting your timer and the feeder rheostat.

How does urs not dumping still

I have mine LL set @ 165 and it never goes up past 180. Like I said you really need to use the feed screw to set the high fire rate and ajust your timer to get a 1" wide band @ idle. As long as you are keeping it lit and maintaining draft that is all the fire you need at idle. After the initial temp surge after a heat cycle the boiler should not gain any heat what so ever. You should be losing a degree an hour or so. By chance are you running this boiler on a power vent?

I can't turn feed down anymore it almost goes out. I have it on for 1 min off for 6 that the longest off with out going out and it still dumps what should I do

call the guys at LL (Dave or Matt) should be able to help you

klim1972, you should have our numbers on the manual and instruction sheets (if not send me a PM and I'll send you my cell number), give me a call on my cell or call the shop tomorrow, we can figure this out!

Ok well I think I got it matt its been steady for 12 hours now but my other problem now is I think I needed the bigger coil for hot water, I seem to run out all the time .

If you have reduced your max feed rate to control the idle temperature, that will also negatively impact your hot water production.

i'm with you on this one Markiii, Set your high fire withe feed screw, and use the timer @ rheostats to set the idle. I think you had you dump zone set @ 210 but what was the differential set for. Also back your HL down to 10* above the LL.

Diff on aquastat is at 10 what should it be at

And dump HL diff is at 5

differentials sound fine. Try setting your low limit to 165 and your high limit to 180. Let your dump zone set to 205. That will give you some head room for temp gain after shutting down from a high fire cycle.

Is it coomon for my 110 to run hotter on muggy day yesterday was real muggy and windy and it seemed to be running hotter out out the blue and more coal was red at idle

Do you have a draft control installed?

I have damper on it