I'm having trouble with the baseboard on a long zone in my house. The baseboards feel warm but don't really emit much heat. The other 2 zones which are considerably smaller heat up no problem. I have a feeling that the taco 007 on my indoor oil system can't handle the head loss. The problem zone is approximately 100 feet of 3/4 copper with about 30 feet of baseboard. Can anyone tell me what the head loss rate is in 3/4 copper so I can try to figure out whether it's the pump or a delta t issue? Any help is appreciated.