110 timer settings

110 timer settings

PostBy: plumber On: Mon Feb 04, 2013 10:31 am

Now that I have the new fan and the boiler is, well boiling, I'm thinking my timer settings are way wrong. I now have very little ash, but quite a bit of unburned coal in the pan. Before the new fan the boiler didn't idle much, now it idles a lot.

My settings are 15 min off 45 sec on fan just about minimum and stoker about half way.

I know this is way wrong, where should I aim to be?
plumber
 
Stoker Coal Boiler: EFM 350
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: WL110/165 Boiler

Re: 110 timer settings

PostBy: Rob R. On: Mon Feb 04, 2013 10:41 am

More air for the periodic stoking cycle?
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: 110 timer settings

PostBy: Flyer5 On: Mon Feb 04, 2013 10:48 am

I am 8 off and 45 on . With the new blower I will probably have to open that a bit when the warmer weather comes. But that should be a good starting point. Dave
Flyer5
 
Stoker Coal Boiler: Leisure Line WL110
Hot Air Coal Stoker Stove: Leisure Line Pioneer

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Re: 110 timer settings

PostBy: Matthaus On: Tue Feb 05, 2013 7:09 pm

plumber wrote:snip.... My settings are 15 min off 45 sec on fan just about minimum and stoker about half way. I know this is way wrong, where should I aim to be?

There is no wrong or right, however for good recovery you want about a 2" - 4" band (front to back) of red coals so when the burn circuit is activated the fire will pick right up. The lowering of the combustion fan speed will allow more burning coal on the grate and less heat during the idle cycle. With good draft at idle (at least -.03" WC at the breech) off times as long as 20 minutes can be possible depending on the coal quality. Generally speaking though I would try for an off time of less than 10 minutes to promote complete burning of coal during the idle cycle. The good news is that with the 65 cfm combustion fans having a bigger blower wheel, slower speeds at idle work great.

Thanks for the feedback, keep those cards and letters coming! :lol:
Matthaus
 
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite

Re: 110 timer settings

PostBy: plumber On: Tue Feb 05, 2013 7:30 pm

I'm thinking with this new blower, I may need to reinvent the wheel! The differance has been that dramatic, my boiler run time has been cut a lot! Now that it spends a lot of time idling, I'm thinking I need to shorten the off times to keep it ready. I should do that anyway to prevent my summer outfire problem. I say problem, only when it's over 90 with no breeze. Probably 3-4 times last summer. As well, it only happened after I worked a double and just wanted a shower and my bed :mad:

Matt, what are your suggestions for a good starting point. I have a very consistent .05" draft.
I remember you saying a while ago to let it run at least 12 seconds.
plumber
 
Stoker Coal Boiler: EFM 350
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: WL110/165 Boiler

Re: 110 timer settings

PostBy: Matthaus On: Tue Feb 05, 2013 8:15 pm

I would start with 9 minutes off and 36 seconds on and combustion fan at just enough to make tiny flames when it runs, stoker rheostat will probably be at 3 O Clock (pointing at the combustion fan knob). These setting should give you the 2" -4" bed of burning coals needed for good recovery and no out fires.

Let the science projects begin! :arrow: :clap:
Matthaus
 
Stoker Coal Boiler: Leisure Line WL110 Dual Fuel
Hot Air Coal Stoker Stove: Leisure Line Lil' Heater (rental house)
Coal Size/Type: Rice and Buckwheat Anthracite

Visit Leisure Line Stove