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HETAS Certificate of Compliance

A HETAS Certificate of Compliance is issued when a solid fuel appliance (wood burner, multi-fuel stove, biomass boiler) has been installed by a HETAS-registered installer. It serves as self-certification to Building Control under the Competent Person Scheme, confirming the installation complies with Building Regulations.

Building Regulations Approved Document J, Clean Air Act 1993Valid: One-off (per installation)

What it covers

  • Appliance details and DEFRA exemption status
  • Hearth, fireplace recess, and chimney specification
  • Flue installation and termination height
  • Air supply and ventilation requirements
  • Carbon monoxide alarm installation
  • Commissioning and first-light checks

Who needs a HETAS Certificate?

Homeowners installing wood burners or stoves
Building Control
Property buyers/sellers
Insurers

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Frequently asked questions about HETAS Certificate

Do I need a HETAS certificate to install a wood burner?
You need either a HETAS certificate (from a HETAS-registered installer) or a separate Building Regulations application to your local council. Without one of these, the installation is technically illegal and could affect your property insurance or sale.
Is a HETAS certificate the same as Building Control sign-off?
Yes, effectively. HETAS is an approved Competent Person Scheme, so a HETAS certificate is self-certification that the installation meets Building Regulations. You don't need a separate Building Control inspection.

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