Desirable Water Temp for Baseboard Heat
I just had a plumber add baseboard forced hot water to an addition, tying in to an existing zone. I have a gas boiler heating only baseboard (not hot water for shower, etc). While going over the job he noted that my boiler was set for about 185 deg, but he said that for every 10 deg lower you save 3% in energy costs. And he lowered the temp. (I can change it). Is that true? He set it down to about 140deg. I'll see, but imagine the circ pump will run constantly now.