Hi, I have a new house, 2 years old. I have about 25' of baseboard in my 1st zone, 1st floor which consists of living room, kitchen, bathroom, and dining room. The sq footage of the 1st floor is about 900 sq ft. I was told I need about 40', so I wish to add a radiator to the zone. I know all about adding the radiator, piping it, soldering it as I worked for a plumber for 2 years. I will not be adding a T to the zone, but adding in the new radiator to the last existing radiator and tieing it back to the boiler. That work is not a problem. I'm wondering what I have to do to purge the water/air from the system and how to refill the system. I have forced hot water powered by gas via a new burnham boiler. I'm not sure what type of burnham boiler it is, but I can tell you that the radiators (suntemp) do not have air purges on them. I just assume that you.
A. Shut down the power to the boiler.
B. Shut off the water to the boiler.
C. Drain the water from the zone.
D. Add in the new radiator
E. Turn the water back on to the zone.
However, I've also been told that I have to purge the air. I'm wondering if I have listed the proper sequence to do this, or if I have it all wrong. Any help is appreciated. It's not that I'm too cheap to have a plumber do it, I just like doing this stuff. However if special tools are required or any special boiler expertise, that's where I stop.