What is the warranty of our wall heating system?

Once you install your new system, you want it to work flawlessly – and it usually does. In case of any unexpected issues though, you don’t have to worry knowing that the 3thermo system is covered under warranty and we’ll come deal with any problems that might come up.


We offer a basic warranty of 24 months and 3thermo only needs servicing after ten years.

The servicing should be done by a 3thermo qualified person, and after that servicing you will be given another ten years, making it a total of twenty years warranty. However, for the warranty to be valid, it is important that your system is installed by a 3thermo qualified person, so that they can stamp your warranty card. You also need to have your radiators provided by a 3thermo approved distributor.

Our basic warranty is a parts and labour warranty, which covers any manufacturer’s defaults on the heating system. If your radiator stops working due to manufacturing issue, it will be included under that warranty. The manufacturing fault covered by the warranty would be for example gas leaking out of one of the pipes. In that case we would come and deal with it, changing the radiator for free and paying for any extra cost involved like the plastering.

However if the issue is a user’s fault – for example putting a hole through the radiator – it won’t be covered by the warranty. We will nevertheless still be happy to come and fix it for you, so don’t hesitate to contact us even for issues outside of the warranty cover. You also don’t need to worry too much about damaging the radiators yourself. It is not very likely, as we provide a full training for our system during the installation process, so you’ll know exactly how to use it without risking any damage.

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