Do Gas Hobs Require FFD or FSD?

When it comes to gas hob safety, you may have seen terms like FFD FFD stands for Flame Failure Device, a safety feature that cuts off the gas supply if the flame goes out. or FSD FSD stands for Flame Supervision Device, another name for the same safety mechanism as an FFD. . These are important built-in safety features designed to reduce the risk of gas leaks and help protect your home.

But are they required on all gas hobs in the UK? Here’s what you need to know.

What Are FFD and FSD?

Both FFD (Flame Failure Device) and FSD (Flame Supervision Device) refer to the same type of safety system. Its job is to automatically stop the gas supply if the burner flame goes out.

This could happen because of a draught, a boil-over, or food spilling onto the burner. Without this protection, unburned gas could continue escaping into the room, creating a serious safety risk.

Do All Gas Hobs Need an FFD or FSD?

Yes — in the UK, all modern built-in gas hobs should have a Flame Failure Device or Flame Supervision Device fitted. This has become a standard requirement on new gas hobs sold for the UK market.

If you are buying a new gas hob, this feature should already be included. Older appliances or imported models without this protection may not meet current expectations for safe installation and use.

How to Check if Your Hob Has an FFD/FSD

It is usually quite easy to check whether your hob includes one.

• Look near the burner cap for a small metal probe or sensor beside the flame ring
• Check the instruction manual or search the model number online
• Look in the product specification for wording such as Flame Failure Device, Flame Supervision Device, FFD, or FSD

Why It Matters

A Flame Failure Device is not just a useful extra — it is one of the most important gas hob safety features. It helps protect against gas leaks, lowers fire risk, and ensures your hob aligns with modern safety standards.

Conclusion

All modern gas hobs sold in the UK should be fitted with a Flame Failure Device or Flame Supervision Device. These systems are designed to stop the gas flow automatically if the flame goes out, helping keep your kitchen safer.

If you are choosing a new gas hob, make sure this essential safety feature is included before installation.