Hydronic heating is more comfortable Since hydronic systems rely more on radiant heating, they offer more even heating of the living space. In a hydronic system, there s no air blowing around the room, so there are virtually no drafts to make people uncomfortable. And because the hydronic system is heating people and things via radiating surfaces rather than hot air, the air is not getting dried out as much as with a Forced Air System. By not overheating the air, a hydronic system makes it easier to maintain a comfortable humidity level during the heating season. And note that the thermostat can be set to a lower temperature degrees and the room can still feel comfortable.
Water is a great carrier of heat.
F. He ll tell you that water conducts heat twenty times faster than air and, without the wet suit, he d loose body heat too fast under water. The same goes for heating systems. Air is a good insulator but not the best heating medium. Notice that storm windows work by having a dead air space between the two windows. Also, note that because more of the heat is being radiated to the living space rather than blown into it, there is less heat loss through the cracks around doors and windows than there is with a forced air system, therefore fewer Btu s need to be produced to keep the living space comfortable.