LsFarm wrote:I'm with Rob on this. If the room with the last section of baseboard is still comfortable with 150* water providing the heat, then there is nothing wrong, and no reason to change anything..
If those rooms at the end of the loop are cool, I'd first bump up the circulator to HI, and see if there is a noticable effect. THEN if you were on the lowest setting, bump it down to the middle speed and see if it is a good compromise.
You can close off some of the baseboards in the first part of the loop, especially if those rooms are too warm.. then the heat removed from the water will be less at first, raising the end of loop temperature.