Warmup Loose Wire Underfloor Heating Kit - Choice of Sizes

As low as: Excl. Tax: £67.62 Incl. Tax: £81.14

Warmup Loose Wire Underfloor heating systems are designed or use within the adhesive layer under tiles or within a leveling compound under other floor finishes

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  • Product info

    Warm up Loose Wire Underfloor Heating Kit

    The Warmup Loose Wire system also known as DWSWire is designed for use with irregular shaped rooms with many fixtures. The heating cable can simply be maneuvered on the subfloor around the fixtures with total ease. The Loose Wire system is ideal for use under ceramic or natural stone tiled flooring. The loose Wire system is easy to install because it comes in a kit: Ultra thin 1.8mm cable, Primer, Tape, Foam Roller & Installation manual.

    View the installation guide here. Take a look at the Tech Sheet for the Warmup Loose Wire underfloor Heating System

    Features & Benefits

        Thinnest wire you can buy: 1.8mm, multi-strand core, double-insulated using advanced fluoropolymers

        Ideal in small or irregular shaped rooms - spaces with lots of fixtures or corners, eg a bathroom or a sunroom with curved or slanted walls.

        Quick installation - single connection lead for fewer steps

        The small cross-section of the heating element allows it to be installed without the need for a layer of a self-levelling screed

        Flooring can be laid straight on top.

        Approvals: ASTA BEAB, KEMA, GS, CERTIF, VDE & CE Marked

        Usually installed beneath a tiled or stone floor finish but can be used beneath vinyl when embedded with a suitable levelling compound.

        SafetyNet installation Guarantee

        Lifetime warranty

        Wont raise the floor levels

        No need to dig up the floor

    What is Loose Wire System designed for?

    WarmUp Loose Wire Underfloor heating system is designed to be used with awkward shaped rooms.
    Warmup loose wire heating system should cover approx 95% of the open floor area. They are 2mm in diameter & ultra thin.

    This is to allow it to be installed in a matter of hours without raising floor levels.One of the advantages of using the loose wire system is that there is no need to dig up the floor - it is easy as fixing the heating element to the subfloor, and tile straight over the top!

    Floor Coverings

    Tiles & Stone

    The best type of flooring to use with underfloor heating is tile and stone. Tile & stone have high thermal conductivity, which means that they transfer heat efficiently from a warm water pipe or heating cable to the floor surface. Tile & stone retain heat well making the system more economic to run whilst also heating up quickly. Electric underfloor heating under tiles or stones is desired in bathrooms, kitchens and high heat loss areas - this is due to the excellent thermal properties they possess - they can be heated to 29°C.

    It takes the chill out of the tiles and you are able to control your heating with a thermostat which means your home is warm when you want and can be turned off when you are not home. Tiles made from cork or rubber are not suitable for use with underfloor heating.


    Vinyl floorings are suitable for use with underfloor heating. There a 4 different types of vinyl flooring that differ in their properties and therefore in there requirements for an underfloor heating system. Amtico, Karndean, Click vinyl and Tarkett floor. It is worth checking with the vinyl flooring manufacturers on the type of underfloor heating that is suitable to use with their product as some only allow the use of underfloor heating systems embedded within a screed/levelling compound.

    It is recommended the DCM-PRO, StickyMat or Loose Wire systems are best to be installed in wet rooms with vinyl floors - such as bathrooms. It is also recommended that in dry rooms such as bedrooms, living rooms, hallways ect the WarmUp Foil heater systems is best to be used.

    Insulation Boards

    Using underfloor heating insulation boards in your installation signifantly reduces heat up times and running costs. They are recommended for use with electric underfloor heating as they prevent the heat escaping downwards to the subfloor. Underfloor heating insulation boards 6mm, underfloor heating insulation boards 10mm, underfloor heating insulation boards 20mm & underfloor heating insulation boards 50mm.

    The heat gets pushed upwards onto the floor surface where you want the heat to go.

    The Warmup Insulation Boards are manufactured from water-resistant extruded polystyrene finished on both faces and with a thin layer of fibreglass reinforced cement. Each board is designed to hold 30 tonnes per square metre. The Insulation boards contain a cement coating which is 0.5mm thick which provides an excellent surface for tile adhesive, plaster and leveling compounds with no primer required.

    Due to their waterproof properties, Warmup insulation boards can also be used to insulate bathroom and shower walls. Tiles can be applied straight onto the insulation boards without any preparation required.

    Safety Net Installation Guarantee

    If you accidently damage the heating system during installation, return it to Warmup and they will replace it with another heater of the same make and model free.

    Lifetime Limited Warranty

    This product comes with a Lifetime Warranty. Warmup are very confident in the standards of their products


    4iE Smart WiFi Thermostat

    The 4iE is a Smart heating thermostat that works with your smartphone to give you optimal, cost-effective and energy-efficient heating. For use with both electric and water underfloor heating systems, the 4iE does not require programming and uses Warmup's latest technologies to ensure your home is always at the required temperature at the right time.
    App controlled WiFi Underfloor Heating Thermostat
    The 4iE is an app controlled WiFi heating controller that maximises the energy efficient of a floor heating system. Underfloor heating is much more efficient in heating a home then radiatiors as they run at a low temperature reaching optimal warmth.

    Looks great in both modern & traditional styled homes
    Glass front & bevelled chrome edges
    Full colour touchscreen and uploadable photo backgrounds
    Used in conjunction with the Warmup MyHeating and AutoSwitch heating apps
    Controlled from Smartphone, tablet or computer
    Learning mode - Learns your heating patterns & automatically suggests ways in order to save energy
    Finds you lower energy tarriffs and smart ways to lower your usage

    3iE Programmable Thermostat

    The Warmup 3iE is an interactive, touch technology, thermostat which has an easy to use interface, eliminating complicated instruction manals. The 3iE allows you to set 10 different heating schedules per day, giving you complete control for all rooms. The 3iE has a learning capability meaning it can tell you when to turn the power on to achieve the desired temperature at chosen time. The 3iE features a full colour display that shows your current energy running costs & suggests ways to lower these costs for your households.
    Available in the following colours: Silver Grey, Classic cream, Piano black, Madison blue, Deep pink, Leaf green, & Warm berry.

    Innovative: First thermostat with a 2.4" full colour screen & integrated touch technology.
    Interactive: Clear graphical display makes any adjustment quick and easy.Choose the display style - wide choice of screen themes available.
    Intelligent: Proportional Adaptive Function precisely activates the system when needed, perfectly balancing comfort with economy.
    Energy Efficient: Accurate floor temperature control means no wasted energy - reducing the costs associated with over-heating.
    Comes with a 3 year WarmUp warranty.
    BEAB & CE approved
    Programming Function: 10 Events & 10 Temperatures per day

    Tempo Programmable Thermostat

    The WarmUp Tempo underfloor heating programmable thermostat enables users to program start and end heating times as easily as they would with a watch or a clock - heat on when they want and heat off when it is not required. The WarmUp Tempo thermostat can operate on a weekly, 5-2 day or a daily basis to match your requirements. Avoid wasting energy and achieve savings on your utility bills. It also features the Proportional Adaptive Function which learns the time it takes to warm the room and activates the heating early so it reaches its optimum temperature by the given time. Available in Piano black or Porcelain white.

    Easy control: with dial & sliders
    Compatibility: Suitable with all Warm Up electric underfloor heating systems
    Clear screen: The Tempo Proportional Adaptive Function learns the time it takes to warm the room and activates the heating early so it is up to the right temperature when required.
    Simplicity: The Tempo enables you to choose the time easily and quickly set programs. Heat on when you want it and off when you dont need it.
    3 year Warmp warranty
    Stylish & contemporary design
    Mode for every need: Manual, automatic & frost protection

    Manual Thermostat

    Warmup MSTAT manual thermostats are easy to use and are simple to set up. The manual thermsotats are the most traditional of the WarmUp heating controllers. There is no need to set up a heating programe with the manual thermostat - simply set your required temperature immediately with a twist of the dial. Can be used with electric underfloor heating or central heating. Comes with an integrated dual air and floor sensor which gives you the choice to set an air comfort temperature or a floor comfort temperature.

    Dual Sensor: Air & floor temperature control
    Flush Mounting: MSTAT depth allows flush mounting in a standard socket
    Temperature regulation: From 5 to 35 degrees
    16A Switching Capability 16A switching capability, 33600W at 230V, is suitable for cental heating, hydronic and electric underfloor heating demands.
    Comes with a 3 year WarmUp warranty.
    BEAB, ASTA & CE approved
    Low voltage directive: EN60730-1, EN60730-2-9


    Area To Be Heated (m2) Heaters Required Spacing (mm)
    1.5 - 1.8 DWS300 70mm
    1.9 - 2.4 DWS300 90mm
    2.5 - 2.7 DWS400 70mm
    2.8 - 3.0 DWS400 80mm
    3.1 - 3.4 DWS400 90mm 3.5 - 3.8 DWS600 70mm 3.9 - 4.1 DWS600 80mm 4.2 - 4.4 DWS600 90mm 4.5 - 5.0 DWS800 70mm 5.1 - 5.6 DWS800 80mm 5.7 - 5.9 DWS800 90mm 6.0 - 6.4 DWS400 + DWS600 80mm 6.5 - 6.9 DWS400 + DWS600 90mm 7.0 - 7.7 2 x DWS600 80mm 7.8 - 8.4 2 x DWS600 90mm 8.5 - 9.2 DWS600 + DWS800 80mm 9.3 - 9.9 DWS600 + DWS800 90mm 10.0 - 11.1 2 x DWS800 80mm 11.2 - 11.4 2 x DWS800 90mm 11.5 - 12.2 DWS400 + DWS600 + DWS800 80mm 12.3 - 12.9 DWS400 + DWS600 + DWS800 90mm 13.0 - 13.7 2 x DWS800 + DWS400 80mm 13.8 - 14.4 2 x DWS800 + DWS400 90mm 14.5 - 15.2 2 x DWS800 + DWS600 80mm 15.3 - 15.9 2 x DWS800 + DWS600 90mm 16.0 - 16.7 3 x DWS800 80mm 16.8 - 17.4 3 x DWS800 90mm 17.5 - 18.9 2 x DWS800 + DWS600 + DWS400 90mm 19.0 - 19.7 3 x DWS800 + DWS400 80mm 19.8 - 20.4 3 x DWS800 + DWS400 90mm 20.5 - 21.2 3 x DWS800 + DWS600 80mm 21.3 - 21.9 3 x DWS800 + DWS600 90mm 22.0 - 22.3 4 x DWS800 80mm 22.4 - 24.6 4 x DWS800 90mm 24.7 - 25.0 4 x DWS800 100mm
  • Tech Specs
    Product Code: LOOSEWIRE
    Product Type: Electric Underfloor Heating Kits
    Manufacturer: Warmup
    Brand: Warmup
    Condition: New
    Technical Information:
    Heater Construction Dual core earth screened cable
    Operating Voltage 220-240V; 50Hz
    Cable thickness 2mm
    Inner Insulation Advanced Fluoropolymer (ETFE)
    Outer Insulation Advanced Fluoropolymer (ETFE)
    Average output Rating 150W/m2
    Connection 3m Coldtail connection
    Approvals ASTA BEAB, KEMA & GS

  • Delivery info


    Most Mainland UK Postcodes

    ServicePrice (Inc VAT)
    Economy Courier Delivery - Usually 5-9 working days (Note: Only available on items under £100) Free
    Standard Courier Delivery - Usually 2-4 working days £7.95
    Next Working Day Delivery - 1 working day (Only available for IN STOCK items) £10.00
    Next Working Day By 10.30am £21.00
    Next Working Day By 12.00pm £16.00
    Same Day Courier Delivery (Only available for IN STOCK items and central London postcodes) £50.00
    Saturday Any Time £16.00
    Saturday By 10.30am £26.00
    Saturday By 12.00pm £21.00
    Sunday Delivery From £21.00
    Collection from Maidenhead - Usually 1-3 working days
    We will contact you when your order is ready
    Free of charge

    For collections please do not travel until you have had confirmation your order is ready.

    If you need items urgently, please call ahead to check lead times. Our Sales Team are available on 01628 760 440 Monday to Friday 8.00am to 5.00pm.

    We do not recommend Tradesmen are booked until items are safely received and checked.



    in stock icon

    Delivery charges are calculated at the checkout. Standard delivery to England, Wales and parts of Scotland starts from only £6.95 although exceptions do apply and are listed below.

    Please note:

    The cut off for Next Working Day delivery is 3.30pm and Next Working Day refers to Monday to Friday and excludes weekends and Bank Holidays. The delivery options below relate to this product only and may not be available if other items are added to your basket. Only one delivery charge is made per order and the highest will normally take precedence.

    Returning an item

    We offer a no quibble 60 day returns policy on all goods supplied, subject to a few minor exceptions. Find out more on our Returns Policy page.


    Highlands & Islands of Scotland (and postcode exceptions)

    ServicePrice (Inc VAT)
    Standard Courier Delivery - Usually 2-4 working days £16.00
    Next Working Day Delivery - 1 working day Not Available
    Saturday Delilvery Not Available
    Sunday Delivery Not Available

    Includes the following postcodes:
    AB36-AB38, AB55-AB56, FK17-FK21, HS, IV1-56, IV70, IV63, KA27, KA28, KW1-KW17, PA20-PA45, PA47-PA49, PA60-PA78, PH19-PH26, PH30-PH44, PH49-PH50, TR21-TR25, ZE


    Northern Ireland Services (BT Postcodes)Price (Inc VAT)
    No Rush Postal Delivery - Usually 4-5 working days £10.00
    Standard Courier Delivery - Usually 2-4 working days £15.00
    Next Working Day Delivery (Dublin Only) - 1 working day £27.00
    Ireland (Eire) ServicesPrice (No VAT)
    No Rush Postal Delivery - Usually 4-5 working days £10.00
    Standard Courier Delivery - Usually 2-4 working days £15.00

    Channel Islands & Isle of Man

    JE, GY, IM Postcode ServicesPrice (No VAT)
    Standard Courier Delivery - Usually 2-3 working days £22.60
    Next Working Day Delivery - 1 working day £56.00
    Next Working Day By 12.00pm £76.00
    Saturday Any Time £78.50
    Sunday Delivery Not Available


    All delivery times and dates especially next working day and weekend delivery times are always provided as a guide and are not 'guaranteed'. We use reliable couriers with a 99.9% success rate however once a consignment is within the courier network there is always a very small chance something could go wrong, however unforeseen. Trading Depot will not be liable for any costs incurred by any such delays waiting for goods. Trading Depot advises strongly against booking Tradesmen until after goods are safely received and checked for this exact reason.