So, what’s all this? I am certainly not the one to explain. If you go back a couple of posts, you will see some explanations. I can tell you that the “32” does not indicate the temperature, wind speed or weight. Clueless here. That’s why we hired professionals to install these things.
The tanks hold water. How’s that for techinal expertise? There are two water systems for the house. One to heat the floor and another for personal use.
The heated floor is most excellent. We are still in the rental and the past couple of days have been chilly. This house is drafty and cold. The new house is comfortable. That’s really the word that descibes it. It is not hot, just very, very comfortable. Thanks to the heated floor. 
We are so ready to be in a cozy home, looking out at the chilly weather and not caring one iota. Bring it on.