There is no special formula of floor heating antifreeze on the market, because generally if you do not turn on the floor heating in winter, you have to blow water, otherwise it will cause freezing and cracking.
It is recommended to consult a professional here. Inferior automotive antifreeze can easily cause explosions. So never do the work yourself.
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. Unnatural.
The full name of antifreeze should be called antifreeze coolant, which means coolant with antifreeze function.