Hearth Regulations – Size & Thickness Requirements

Adding a wood burning stove to your home is a fantastic way to transform the aesthetics of any room. These beautiful additions can create a unique centrepiece while also helping to keep you toasty on those cold winter nights. However, when it comes to adding a wood burner to your home, it is essential you are using a hearth. This is not only an important safety feature, but it will also help you to protect your floor and the space around it.

Building regulations state that your stove must be placed on a non-combustible material, but what are the size and thickness regulations? We have taken a closer look to help you.

Hearth Regulations for a Free Standing Stove

If your free standing stove does not raise the hearth temperature above 100°C, then the following conditions need to be applied:

  • It must be at least 12mm in thickness.
  • It must extend beyond the burner by 300mm to the front and 150mm on each side.
  • Must be made from non-combustible materials.
  • Total area covered must be at least 840mm x 840mm.

However, if the burner will exceed 100°C, or if your chosen option has not been heated, then you will need to increase the thickness of the hearth to at least 250mm.

hearth regulation for freestanding stove

Hearth Regulations for Stoves in Fireplace Recesses

Placing your wood burner into a fireplace recess can create a beautiful centrepiece in your room, but there are several things you need to remember before installing it:

  • You will need a ‘constructional hearth’ in place, which is making sure the floor of your fireplace is made from concrete that is at least 250mm in thickness. 
  • This hearth should extend at least 500mm out into the room and be wider than 150mm than the recess itself. 
  • If there are combustible materials underneath the burner, then you will need to ensure there is a 50mm gap between that and the hearth.
hearth regulation for stove in recess

Is a Hearth Necessary for a Log Burner or Stove?

If you are looking to add a wood burner to your home, then it is imperative that you are using the correct hearth. Building regulations state that you utilise a hearth that is made of non-combustible materials and that it meets the size and thickness required for your style of the burner.

As these burners can reach extremely hot temperatures, a hearth will help to protect your home from burning embers or combustible materials from catching alight.

What is the Best Material for a Hearth?

A hearth can come in an array of different materials, but glass, granite, slate and steel are the most popular choices. All four options can help to provide a unique design to your interior, but here at Me and My Glass, we are big fans of using glass hearths.

Our experienced team is able to cut your glass hearth to any shape or size, guaranteeing the very best finish possible. Want to find out more? Get in touch today!

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