Do not add antifreeze to underfloor heating as this will have an impact.
Correct antifreeze measures should be:
1. When there is no one at home for a short time (within a week), the boiler temperature can be adjusted. at the lowest. At this time, the boiler will enter low temperature antifreeze mode.
2. When no one is home for a long period of 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 boilerand 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.
Would it freeze if the underfloor heating pipes were filled with antifreeze?
No.
Under normal circumstances, it is relatively normal for antifreeze to consume approximately 10% to 35% of 10 liters per year. However, most of them are. Abnormal.
The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze functionel.
The underfloor heating pipe is filled with antifreeze and will generally not freeze if not used.
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 return valve of the main heating pipe and drain all the water to prevent the pipes from freezing and cracking.