I have a few questions on the aquastat I am hoping someone can answer. I am trying to understand the operation a bit better.
On a call for heat, the circulator starts first. When the water temp drops, the blower and auger start and keep running until the thermostat is satisfied or the high limit is reached. The circulator will shut down if the water temp drops 10 degrees below the low limit setting to preserve the hot water for the coil.
Does the aquastat keep the boiler between 160 - 200 or whatever you have it set at as the low and high limit?
The aquastat maintains the boiler at the low limit setting, plus any override after the blower shuts off.
Does the stoker stoke continously no matter what the call for heat is to maintain these temps?
No, it will either maintain the low limit setting or stoke as described above.
I am going to use an L6006C out fire control and a wilburt mercury timer.
Hang on to the mercury timer. They were excellent devices.