Utica oil,Kerr wood boiler circulation

[Newman4j]

Need help. I have a dual source heating system installed. A Utica oil boiler connected in parallel with a Kerr wood boiler (inside). When I burn wood, it’s supposed to heat the water so the oil boiler doesn’t come on all the time. It seems that no matter how hot I get the wood boiler, the oil boiler cycles on and off all the time. Anyone know this system? Need advice. High limit on oil boiler is set at 180 and low limit at 150. The wood should be supplying a temp greater than 150. What’s up? Any help greatly appreciated!

 

[maple1]

What is the actual temp of the oil boiler? Is there a differential dial in the stat?

 

[Newman4j]

it is temp limited by the aquastat at 180 degrees.

 

[maple1]

it is temp limited by the aquastat at 180 degrees.

That may be a maximum temp setting. But is that how hot it really is? Actual temp with a thermometer/temp gauge. If it is 180 your oil should not cut in at all. Also can you post a pic of the oil aquastat?