Collection

Heat Network Technical Assurance Scheme (HNTAS): draft Code documents

Draft new build technical specifications and assessment procedures to help heat networks demonstrate compliance with the Heat Network Technical Assurance Scheme (HNTAS).

• From: Department for Energy Security and Net Zero
• Published: 15 December 2025

Draft new build technical specifications

• HNTAS: Draft Energy Centre technical specifications for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft District Distribution Network technical specifications for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Substation technical specifications for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Communal Distribution Network technical specifications for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Consumer Connection technical specifications for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Consumer Heat System technical specifications for new build heat networks
  • 15 December 2025
  • Guidance

Draft new build assessment procedures

• HNTAS: Draft Energy Centre assessment procedures for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft District Distribution Network assessment procedures for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Substation assessment procedures for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Communal Distribution Network assessment procedures for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Consumer Connection assessment procedures for new build heat networks
  • 15 December 2025
  • Guidance
• HNTAS: Draft Consumer Heat System assessment procedures for new build heat networks
  • 15 December 2025
  • Guidance

Published 15 December 2025