What is storage floor heating

This is the type of heating that is placed under the floor. The most commonly used hot-water, hot-air and electric heaters are either the entire volume or the heating element in the floor. Their biggest advantage is the ability to use energy efficiently. Even though the heater is switched off for some time, the thermal energy will still remain in the floor to create a pleasant climate in the room.
 
Negative is definitely the acquisition price, which is not the lowest. Moreover, this method of heating also requires larger building modifications, which are also costly and time-consuming.