Danfoss DEVI Electric Heating Cables

Meteorologists have warned us of an ‘Arctic Freeze’ that could wrap around Britain and bring substantial snowfall with it. Thermostats and underfloor heating are absolute lifesavers in these times and thankfully DEVI, a Sparks favourite, offers a fantastic range of heating solutions for colder climes. These include the excellent combination of DEVImat and DEVIreg, a match made in heaven that we have written previously about here. Underfloor heating is an underrated home feature, that enables your home to retain heat far more efficiently than a radiator, for instance. They also have very low maintenance costs and actually keep bathrooms more hygienic by warding off cold and dampness. If you feel like the cold weather is slowing you down, then check out our selection of DEVI's underfloor heating products. Be safe in the knowledge that DEVI are a very well-regarded name in the heating industry, having won a slew of awards, including the Santander Breakthrough Award in 2014. DEVImat - Masters of Underfloor HeatingThe DEVImat system is an easily installable floor heating for your entire home that can be placed underneath all manner of surfaces - wood, concrete and laminate flooring. The discreet heating system will be barely visible at all due to its low profile, and it hardly alters your room's floor. While the DEVImat spreads welcoming warmth throughout your room, your floor will be raised a few unnoticeable millimetres at most. Once again the installation process is quick and easy and a tutorial can be viewed here. The mat uses convection to spread heat and is an electrical-based system rather than a water-based one, meaning it's easier to install during a renovation for instance. It also responds far more quickly to thermostat controls, which are ideally provided by the separately purchased DEVIreg. DEVIreg - the Thermostat with all the right connections This intelligent and intuitive touch-screen thermostat has an easy-to-grasp interface that can be installed in multiple rooms, all connected up by the inbuilt setup wizard. It is highly compatible with the DEVImat, with quick communication between the two giving you great control over your home's heating during the cold winter months. The innovative DEVIreg was the first thermostat that awarded touchscreen capability to the user, and also features the 'click fit' design which makes for ease of installation in any room of your home. Here is a video tutorial demonstrating just how easy it is to set up and start using the DEVIreg system. The DEVIreg Smart Control is a wonderful and inventive thermostat that makes full use of the Internet Of Things (IoT) to connect and communicate with other devices in your home. As long as it is connected by Wi-Fi, this Smart App can be controlled from anywhere, at any time. It is fast and easy to use, especially if you set it up using the pre-installed App wizard, which allows you to specify the room and temperature set-up type. For instance, if you want your bathroom floor to be at a balmy heat for your bare-toed morning grooming routine, the app on your phone or the touch-screen thermostat will help you make this a reality. It features a vast array of features beyond that such as an open window detector, an energy-saving program, and an optimal start/end control which ensures that your desired temperature is reached at the optimal time of your liking. Ultimately, this makes for a truly energy-efficient piece of technology that is especially cost-effective for those looking to save bundles on their energy bills, on top of combating pesky cold floors. Where to install underfloor heating and why Having a warm floor during a particularly harsh winter is extremely beneficial for you and your family; this is reflected in increased demand for the product among consumers, in recent years, with similar levels of buying desirability as top-sellers like power showers. In a house with a conventional heating system, you could have the room temperature set to a comfortable 21-25 degrees. However, the floor may remain cold to the feet at an unpleasantly chilly 15 degrees, meaning the distribution of heating will be off-kilter. The most popular locations for installation are the kitchen or the bathroom, as these are traditionally where floor tiles can be coldest to walk on; however, any specific room that gets particularly cold would be ideal for underfloor heating. Think about any rooms that don't already have a radiator or are poorly insulated with cold floor materials such as stone or tiles - rooms that you're usually in during the winter time but it tends to be a little chilly, and you have the perfect location for underfloor heating. So, if you are concerned about you and your family treading on cold tiles (especially any barefoot kids!), then it would be wise to invest in the DEVI underfloor heating range. It is a smart investment in the long term; and not just for the upcoming winter months - it also provides a permanent eco-friendly heating solution that will be unobtrusive, wherever you choose to install it. Don't get cold feet this winter! Check out our DEVI offerings here now.

At Sparks we distribute a wide range of underfloor heating cables and heating mats, many of them by DEVI, and it is only natural that we would have a general installation guide for these underfloor heating cables and thermostats.We are not qualified to give any advice on installing these underfloor heating systems, but Danfoss has many guides that are very useful in this respect.Below we are posting the Danfoss guide to the General Installation of the DEVI underfloor heating cables and thermostats, which can be found on their website. General Installation Guide for Underfloor Heating Cables and ThermostatsThe installation of heating cables and thermostats should comply with general and local regulations. The cables and the thermostats should only be connected by an authorized electrician and connected to an RCD.It is important that the floor construction is well insulated according to the building standards so the downward heat loss is kept to a minimum.Rim zone insulation, along the walls, should be efficient in order to prevent heat from being transported to the foundation walls or adjoining rooms, and allow for a thermal expansion of the concrete.The foundation must be clean and free of sharp objects.The cables must never come into contact with the insulation material or become enveloped by it in any way. The cables must be evenly spread on the available floor and led around permanently fixed objects such as bathtubs etc.The cables must be gently attached so they are not damaged.The concrete around the cables must not contain sharp stones and should have a consistency that enables it to surround the cable completely without leaving air pockets. The concrete should be applied very carefully in order not to damage the heating cables!Concrete must be lain out in such a way, that air pockets inside it are avoided.In connection with wet rooms (bathrooms etc.), a damp-proof membrane should always be used to prevent moisture from entering the floor construction.If the floor is built on the ground, a damp-proof membrane is needed to prevent moisture from moving upwards and into the floor construction.The wire of the floor sensor must be protected by a plastic pipe.The sensor must be positioned in the centre at an open end of a cable loop. Where the pipe is bent between the floor and the wall, the minimum bending radius is 6 cm. The pipe must be sealed at the end to prevent concrete from entering.Should the cable become damaged while being laid out or later during the building process, it is a great advantage in the fault-finding process to know the exact positioning of the connection box between the heating cable and the cold cable as well as the end of the cable end, as the cable layout. It is therefore important to make a sketch showing the positioning of these things in the room.Buy Underfloor Heating MatsHeating cable and floor sensors resistance needs to be measured before, after installation and after installation of concrete, before the thermostat is connected.The heating cable and the connection muff between the heating cable and the cold cable must both be cast in concrete. If the cable is pushed down into the insulation material or covered by it in any other way, the surface temperature can become too high, which might result in cable defects at worst.At low temperatures (below 5 °C) the cable can become difficult to handle due to the plastic sheath.This problem can be overcome by connecting the cables for a short period. For this purpose, THE CABLE MUST BE ROLLED OUT! When the cable has become flexible again, the electrical flow should be disconnected. It is not recommended to lay cables at temperatures below - 5 °C.The floor heating must not be turned on before the concrete has fully set.It takes approximately 30 days for concrete and usually 10-15 days for moulding compound, tile glue etc. (it is important to carefully follow the manufacturer’s recommendations).Keep a min. 5 cm air gap beneath permanent objects like desks, beds, and floor surfaces with installed floor heating. In connection with wet rooms (bathrooms etc.), a damp-proof membrane should always be used in order to prevent moisture from entering the floor construction.The thermostat fitted with an air (room) temperature sensor should always be placed on the inner wall, away from the doorway or other large openings, and not in direct sunlight.A thermostat fitted with an air (room) temperature sensor should be placed above the floor at ~1,5 m (0,8 - 1,8 m) height.To ensure an accurate and easy installation of the cables, DEVIfast™ fitting bands can be used.The DEVIfast™ fitting bands are equipped with attachment clips at intervals of 2,5 cm so the distance between the cable loops will be 5, 7,5, 10, 12,5, 15, etc.Buy Kitchen Underfloor Heating MatsIf you are looking for wooden underfloor heating, laminate underfloor heating mats, or concrete underfloor heating cables, visit the Underfloor Heating section on our website. For larger projects and further advice, do not hesitate to contact us and our specialists will be in touch.