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A few days ago Mark and Ed pointed out that room 3-A just might be under radiated. Apparently that was obvious from looking at a picture. I did a rough heatloss on the room and it appears that Mark and Ed are correct. I also measured the temperature of the room and it is pretty cool 62-64F. I think I need to have about twice as much in the room. I have only 40 installed. I never thought there would be an upside to having an oversized boiler, but here is my opportunity to kill 2 birds with one stone. I would like to add 40 to this room. I have a 2" main, and from what I can see, its 1.25" from the takeoff to the radiator on the 3rd floor.
I was thinking that I can cut an access into the kneewall to get to the top of the riser. All I can think of to do, is increase the pipesize from 1.25" to 1.50", then runout to both rads and have a good mainvent at the end. G2?.
I have calculated what I think I need from Chapter 7 of the Lost Art. Was wondering if this will work?