1. Water supply temperature: 50-60 degrees, and the temperature should not exceed 60 degrees.

2. Water supply pressure: 0.1-0.2Mpa, should not exceed 0.3Mpa.

3. Supply and return water temperature difference: should not exceed 10 degrees.

4. The flow rate of hot water inside the heating tube should be controlled between 0.25-0.5m/s.

5. Geothermal radiation heating structure thickness: 50-80mm (excluding leveling layer and ground decoration layer thickness), including insulation layer of 30-50mm and filling layer of 25-30mm.

6. The weight of the geothermal radiation heating layer structure is 70-120kg/m2.

7. The length of each heating tube should be controlled between 60-100 meters and should not exceed 120 meters.