Energy efficiency has always been a significant criterion for HVAC systems. However, the optimal choice between radiators and underfloor heating may vary depending on different circumstances. 1.     Under the same comfort level (rather than the same indoor temperature), floor heating is more energy efficient. The level of comfort experienced by individuals can be measured using the operative temperature, which is roughly represented by the average temperature of six surfaces within a room. Because underfloor heating can heat the ground to a higher temperature, it can achieve the same comfort as a radiator at a lower room temperature 2.     Under the condition of intermittent use (through the time programming controller), the radiator is more energy efficient. Because the radiator system heats up quickly, the room temperature can be lowered very low when the room is empty, thus saving energy. However, due to differences in environment and personal habits and so on, it is difficult to judge which is more energy saving, but there is no doubt that a reasonable heating system will be more effective in energy saving   As a professional manufacturer of OEM&ODM thermostat, we can provide you with the right heating solution, whether you are using underfloor heating or radiators. Take HT-CS03 as an example, The highlight of this smart room thermostat is that it's a wireless programmable thermostat, which can control your room temperature anytime and anywhere through your phone, so as to achieve energy saving, comfort and convenience.