i am going to be finishing a 17x17 foot room in my concrete floored basement. i will be putting down an insulated floor also. i have forced hot water heat with 3 circulators for the rest of the house. what is the best approach to use for heat in this basement family room? can i add another circulator to the existing system and have forced hot water in the basement too? or does it need to be higher than the furnace for drainage?