[hvacdesigner]

If the rest of the house of floor or zone is on the same thermostat then you must install the equivalent amount of baseboard as the radiator. By measuring the number of sections, the number of tubes in each section, the height and the type of radiator (column, thin tube slenderized, etc., multiplied by some hydronic factors and the surface area can be established which be converted to BTUs outout at tpically 180 degrees water tempertaure. That output can then be divided by 580 degrees which is what one foot of cast iron baseboard gives off, which will give the number of feet of baseboard equal to the radiator. In plain words, too many feet of baseboard and the room will be warmer, less, cooler.

Designs for Comfortable & Efficient Heating & Cooling Systems