Engineered for maximum energy efficiency alongside security, the thermal insulated burglar proof iron entrance door incorporates advanced insulation technologies. The door core is filled with expanded polystyrene (EPS) or polyurethane foam (PUF), achieving thermal conductivity values as low as 0.03W/m·K. The iron skin is double walled, with an air gap between the inner and outer panels to create a thermal break. This design reduces heat loss by up to 70% compared to solid iron doors, making it suitable for cold climates. The frame features a multi chambered design with polyamide thermal breaks, and all gaps are sealed with EPDM rubber gaskets for airtightness. Security components include a heavy duty lockset with anti snap, anti pick, and anti drill features, supported by a reinforced lock block. The door is tested for thermal transmittance (ISO 6946) and forced entry resistance (UL 10C), ensuring compliance with both energy and security standards. Surface finishes include powder coating in various colors, with optional wood grain effects for a traditional look. This door is an excellent choice for homeowners seeking to reduce heating costs while enhancing home security.