bleecker wrote: However, if you guys think that a bypass would help solve the problem, I'll do it.
I don't see why you would want a bypass, you want the hottest water, should pump away from the top of the boiler. Does this thing ever have a timer on it ? Did you try (in the mean time) to turn up the aquastat to 160 and the differential to 20. IF you do wire a L8124 to the system (GOOD IDEA
) the wiring diagram by markviii posted would be the way to go. Set the triple aquastat at 180 high 160 low and 10 differential when you are wired up and you should see an improvement. Where are you from and can you post any pictures ???