Which floor heating pipe is better?

PEX-B pipe is the most resistant to high temperature and high pressure, PEX-C and PERT are the worst (currently the best PERT pipe manufacturers in China only dare to promise that the water temperature is within 70 ℃ and the pressure is within 0.4MPa, and the guaranteed service life is more than 50 years) . Relatively, the radiator does not take up much indoor space, it is beautiful, and the heat dissipation is more uniform. There is only one set of water heaters installed outside, and most of them are packaged and hidden in the cabinet. Valves need to be turned on and off, maintenance, and exhaust will be used.