On the first filling of the hotwater heating system or refilling after maintenance, air in the piping and radiation must be removed and the whole system filled with water.
As a new heating of energy-efficient and comfortable, low-temperature hotwater heating system of floor radiation is increasingly applied to a wide range of housing construction.
低温热水地板辐射采暖系统作为一种既节能又舒适的新型采暖方式，正日益广泛的应用于居住建筑工程之中。
3
Original plane fin model of calculation for heat dissipating capacity in low-temperature hotwater floor radiation heating system was hypothesized one-dimensional temperature field in floor.