I added a 450sq ft. addition on to my house. I have oil hot water baseboard in it that heats two bedrooms then down through a radiator in a garage then back to the boiler. Although this system runs 200ft of 3/4in copper pipe in all, it seems to run alot more than my other two zones. I am wondering if I should take the radiator out of the garage or go with all radiators in the two bedrooms above.