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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)

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Sample HETAS Certificate certificate

Sample HETAS Certificate of Compliance certificate created with CertBox, showing the professional PDF layout with appliance details and defra exemption status, hearth, fireplace recess, and chimney specification, flue installation and termination height

Sample HETAS Certificate with fictional data. All personal details shown are fake.

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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