set up : triangletube phase 3 water heater , peerless oil boiler. The recirculating pump on my boiler is constantly running and the Honeywell zone valve that goes to the domestic hot water is always in the open postion , if I disconnect the power from the hot water heater the recirculating pump stops. Is this normal? Also the piping above the closed zone valve next to it is hot causing heat in the room upstairs even though that zone valve is closed. I'm not sure if this is a hot water heater problem or a boiler problem.