Solar energy cannot be used for underfloor heating.
Reasons:
1. Solar water heater is a storage type and underfloor heating uses circulating water, so the amount of hot water is not enough.
2. The water temperature required for floor heating is low, but it requires a continuous supply of constant temperature hot water, and the heating rate of solar energy is not sufficient.
3. Solar energy produces more hot water during the day and less at night, while underfloor heating is just the opposite. It doesn't require much heat during the day, but requires more hot water at night.
4. When you experience continuous cloudy or cloudy days, more heat is needed indoors and solar energy is powerless.