I'm using a conventional oil boiler with a winter/summer hookup as a secondary heating source. I have an 80 gallon electric hot water heater that I dump heated water into. I'm having a problem controlling my heat . The thermastat is run into a Taco501 controller along with the oil circulation pump. I have a strapon aquastat mounted on the wood boiler feed pipe. It doesn't seem to be working. Could I simplify things by using a second thermastat?