Lu47Dan wrote:While the boiler is being piped, install a thermometer in the supply header and one in the return header piping.
The thermometers will tell you more of how the boiler is operating, I chased a problem with a friends system for three seasons before I cut in tees, installed wells and thermometers. The problem was low temperature water coming out of the boiler. The tri-dictor on the boiler was reading low, so the cut-off was set low. Once I raised it up to 180°, the boiler cycled less and ran less this winter.
I had planned on installing thermometers, If I use a primary/secondary system I will put them in the supply and return side of the Primary loop and in the Supply and return sides of each zone. May be over kill, but it would satisfy the inevitable curiosity I would have of what temps were supplied and returned from each zone.
Still waiting on my books to get here to help me decide exactly what type of system I want to install. My wife has mentioned more that one time in the last couple of weeks that I have spent entirely too much time on the computer... My only reply is "do you want to be warm?".