Floor heating pipes are filled with antifreeze and generally do not freeze if not in use.
The freezing point of antifreeze is below the lowest local temperature in winter. Therefore, when the antifreeze in the floor heating system is below the freezing point, the water in the floor heating pipe. will not freeze and therefore no frost damage will occur.
In addition, if the floor heating system is not used for a long time, it is recommended to drain the water in the floor heating pipes to avoid problems such as scale if the underfloor heating system is to be used. turned off for a long time, it is recommended to close the main heating pipe return valve and drain all water to prevent the pipes from freezing and cracking.
Antifreeze cannot be added to the heater byground, as this would have an impact. Correct anti-freeze measures should be: 1. When there is no one at home for a short time (within a week), the boiler temperature can be set to the lowest setting. During this time, the boiler will enter the antifreeze state of low temperature operation. 2. When no one is at home for a long time, drain all water from the boiler and heating system. However, it should be noted that before doing this, please fully consider other internal pipes, for example confirming that the water pipe will never freeze. Otherwise, do not turn off the boiler and leave it running at low temperature. The underfloor heating only has water in it and I haven't heard of filling it with antifreeze? Even if your home doesn't need underfloor heating in winter. You can also drain the water between the boiler and the water dispenser.Water pipes under the ground will not freeze and explode. The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze function. Antifreeze can prevent coolant from freezing and cracking the radiator and freezing the engine's cylinder block or cylinder head during cold winter parking. But a misunderstanding must be cleared up. Antifreeze is not just for winter, it must be used all year round.