If the power exceeds 100 kW, certification by a technician is required.

To submit the ENEA Ecobonus notification for thermal insulation (opaque structures) within 90 days of completion of the work, the beneficiary's details (tax code, document), the property's cadastral data, invoices and bank transfers, technical data for the materials (thickness, transmittance, surface area), and a report from a qualified technician certifying the requirements are required. 

Here are the specific details to prepare:

• Beneficiary Data: Name, surname, tax code, residential address.
• Property data: Address, cadastral data (sheet, parcel, subaltern), year of construction, usable surface area, type of building.

• Intervention Data (Coat):
  • Total Surface of insulation coat.
  • Thermal transmittance before and after the surgery.
  • Thickness and thermal conductivity $$of the insulating material.
  • Type of structure (e.g. external wall, roof, floor).
  • Start and end date of works (testing).

• Heating System Data: Existing heating type.
• Expense Data: “Talking” invoices and bank transfers (or ordinary ones in some cases, specifying the legislation).
• Technical Documentation: Asseveration by a qualified technician and, in certain cases, APE (Energy Performance Certificate).