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Frequently Asked Questions

Welcome to our FAQ section where you will find common enquiries and technical details regarding our products.

Are electric underfloor heating systems designed to heat a room or just to keep a floor warm?

Underfloor Heating UK DEVI systems are suitable for both heating the entire room or floor only, depending on your requirements. Poorly insulated areas and in very cold conditions, may require ad...

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At what stage of the project should I install my electric underfloor heating?

Generally, we would advise that the property should be airtight before the installation of underfloor heating, but this would also depend on the schedule of your individual project.

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Can I install the system myself or do I need an expert?

All of our Underfloor Heating mats come with a full set of installation instructions, providing a simple step by step guide. Most systems can be installed on a DIY basis. But the final electrical c...

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Can I retrofit Underfloor Heating into my property?

Installation of underfloor heating is obviously easier within a new build project, but if designed correctly, you can still enjoy the benefits of heating your property using underfloor heat on a re...

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Can the backlight in stand-by mode be turned off on the DEVIreg Touch thermostat?

Yes it can. From the main menu, go to Settings > Options > Dim level, and select OFF. With the same navigation, the safety lock, forecast (adaptive function, both start and end), window op...

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Can underfloor heating be used in a bathroom or a wet room?

Yes, underfloor heating is a great way to warm your home. It’s lovely to walk on and distributes heat evenly around each corner of the room, freeing your walls from radiators, so its not surp...

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Can underfloor heating be used under carpet?

Underfloor heating can be used with most types of carpet. A self-levelling compound is required and as long as the underlay is not a good thermal insulator (i.e not felt), heat will easily pass thr...

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Do I need a thermostat?

Yes, we include a DEVIreg Touch programmable thermostat in all of our kits. This stylish cutting edge thermostat uses pulse width modulation with optimum start and optimum end programming as well a...

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Do I need to change the flooring when I want to install DEVI floor heating in my bathroom?

An easy and clean solution such as DEVImat gives you possibility to leave an old floor without removing it and creating unnecessary mess. The thought of broken up floors and craftsmen running in an...

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How do I turn off my underfloor heating system?

During the summer months or when it is warm, you may wish to turn off your underfloor heating. All of our thermostats have an on/off switch, which can be used to turn off your underfloor heating sy...

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I have a floor which is made up of both timber and concrete. Can I use a single heating mat for the floor?

We strongly recommends that each section of floor with a different covering has its own ‘mat’ as well as thermostat since each floor surface has a different maximum temperature limit. W...

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Is the DEVIreg touch programmable thermostat a compatible replacement for the DEVIreg 500 thermostat?

The DEVIreg touch programmable thermostat is a perfect replacement for the DEVIreg 500 thermostat and directly compatible with the existing floor probe. However, the connections may need a qualifie...

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What is an underfloor heating floor sensor?

A floor sensor is a device that is connected to the thermostat, and allows the floor temperature to be fully controlled. The floor sensor is wired back to the thermostat, and connected to the &l...

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What is the black thing at the far end of the twin conductor mat?

This is the connection at the end of the twin conductor mat where the heating element is connected to the neutral return. This is manufactured within the cable.

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Which type of thermostat should I choose for my underfloor heating system?

When choosing a thermostat for your underfloor heating system you need to decide what characteristics you want from your thermostat. Manual - A manual thermostat will provide total control when ...

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Will underfloor heating restrict my choice of floor finish?

The correct floor covering should be carefully considered to ensure heat is not prevented from rising into the room by the floor covering. We offer expert advice on floor covering to ensure the bes...

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