01473 276686Open 8:00am-5:00pm Mon to Fri

01473 276686Sales advice & customer services

08:00 - 17:00
08:00 - 17:00
08:00 - 17:00
08:00 - 17:00
08:00 - 17:00
Online contact us formCreate return request
0 ItemsTotal £0.00Total £0.00
Your shopping basket is empty

Harmoni - SmartFoil 140w/m² Mat - 3.5m², 490w

More from Foil Underfloor Heating Mat 140W

Harmoni - SmartFoil 140w/m² Mat - 3.5m², 490w
Harmoni - SmartFoil 140w/m² Mat - 3.5m², 490w
  • Lifetime warranty
  • Full earth protection
  • Ultra-thin heating cable
  • Twin conductor heating cable
  • Complete earth braiding
  • Suitable for under wood floor surfaces

View full description

Quick Find: 16391
Part Code: HMF140-3.5

Weight: 2.40 Kg

This product is currently awaiting on stock arrival and due in soon.

This product is currently awaiting on stock arrival and due in soon.

Backorder now to secure your delivery or sign up to be notified when this product is back in stock.

Free Delivery Available*
£56.55 ex VAT
£67.86 inc VAT
£67.86 inc VAT
£56.55 ex VAT
Stock Available: 3 Units

Selected Total: £0.00

    • + £45.98
    • + £80.83
    • + £78.98
    • + £82.45
    • + £46.50
    • + £49.96
    • + £107.94
    • + £92.99
    • + £92.99
    • None
    • + £69.11
    • + £73.72
    • + £39.00
    • None
    • + £99.49
    • + £109.99
    • + £109.99
    • + £104.99
    • + £104.99
    • None


    Estimated delivery: 1 working days

    Day of Choice Delivery Available

    Made To Order This is a made to order product and therefore cannot be returned or cancelled

    Please Note : Harmoni Foil Underfloor Heating Mat Products must be used with XPS Insulation Boards.

    Harmoni Foil is an ultra-thin electric radiant floor heating system primarily for use under laminate, engineered wood and glued hardwood.

    Uniform heating is achieved by the specialised materials used, which also eliminates problems due to hotspots or localised heating.

    This Harmoni Foil system is made with Fluoropolymer insulated heating cables. These are sandwiched between two layers of specially reinforced aluminium foil. The uniform spacing of the heating elements, further backed by the aluminium foil, ensures even heat distribution. The heating element is connected to a power-supply cable, which exits the laminate mat from one corner. The power lead is a flat thin two core flexible cord, consisting of two insulated conductors with a metal sheath and an outer sheath.

    Advantages of using Harmoni Foil heating mats:

    • Ease of installation
    • Uniform heating of your laminate flooring: the specialised materials used eliminates problems due to hotspots or localised heating
    • Independently S Mark approved by Semko: visible proof of the safety of our product

    The Harmoni Foil heating mat is designed for installation directly under wood laminate, on top of insulation boards such as the XPS board. The minimum thickness of any covering material must be 5mm in accordance with IEC 60335-2-96 7.12.1g.

    Technical specifications

    Area3.5 m²
    Cold lead length3.0 m
    Coverage3.5 m²
    Current2.13 A
    FeaturesWood Finished Floors
    Lifetime warrantyYes
    Mat length7.0 m
    Mat or kitMat Only
    Mat width0.5 m
    Power140 W/m²
    Resistance @20°C (−5/+10%)108 Ω
    Thermostat choiceMat Only
    Wattage490 W

    Product options

    Product downloads

    Harmoni Foil Manual

    File Size: 2.64 MB

    Product reviews

    5.0100% Positive (1 reviews)

    Ratings based on data collected by third party reviewing platform.


    Louis Charalambous
    15 June 2023 09:21

    Used it before exceptional

    Great fast delivery

    Thanks so much for giving us your take on how we are doing. We're glad that customers like you are having a great experience at Heater Shop.

    More from the Harmoni range

    Need help?
    Chat with us

    We are online and available to answer your sales and customer services queries.

    Enter your details and click begin to speak with one of our advisors.