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LH Underfloor heating film
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LH Underfloor Heating Film

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LH Underfloor heating film

LH Underfloor heating film

10 Year Warranty
  • Highest quality heating films covered by a 10 year warranty
  • Specifically designed for installation under engineered wood and laminate floors
  • Wide range of lengths in two different widths to make planning and installation easy
  • Ideal for any room except bathrooms and wet rooms

Range

400mm Wide Films

Model

kW

Length (m)

Width (m)

LH4-010

0.04

1.0

0.4

LH4-015

0.06

1.5

0.4

LH4-020

0.09

2.0

0.4

LH4-025

0.11

2.5

0.4

LH4-030

0.13

3.0

0.4

LH4-035

0.15

3.5

0.4

LH4-040

0.17

4.0

0.4

LH4-045

0.19

4.5

0.4

LH4-050

0.21

5.0

0.4

LH4-060

0.26

6.0

0.4

LH4-070

0.30

7.0

0.4

LH4-080

0.34

8.0

0.4

LH4-090

0.39

9.0

0.4

LH4-100

0.43

10

0.4

1030mm Wide Films

Model

kW

Length (m)

Width (m)

LH10-010

0.13

1.0

1.03

LH10-015

0.19

1.5

1.03

LH10-020

0.26

2.0

1.03

LH10-025

0.32

2.5

1.03

LH10-030

0.39

3.0

1.03

LH10-035

0.45

3.5

1.03

LH10-040

0.52

4.0

1.03

LH10-045

0.58

4.5

1.03

LH10-050

0.65

5.0

1.03

LH10-060

0.78

6.0

1.03

LH10-070

0.91

7.0

1.03

LH10-080

1.04

8.0

1.03

LH10-090

1.17

9.0

1.03

LH10-100

1.30

10

1.03

Insulation/Underlay & Vapour Barrier

Model

Description

Thickness (mm)

Area covered (m²)

I-Pack-6

Pack of 19 boards

6

9.76

I-Board-6

Individual Board

6 0.5

LHT

High adhesion tape (one roll for every 10m² of floor area)

VB

Polythene vapour barrier (one for every 10m² of floor area)

Thermostats

Model

Operation

Max Load (A)

Max kW

Colour

T16CW

Programmable Touchscreen

16

3.6

White

T16CS

Programmable Touchscreen

16

3.6

Silver

T16CB

Programmable Touchscreen

16

3.6

Black

T16R

Optional remote air sensor for T16C range

U16C Programmable 15 3.4 White/Grey
A16C Manual Switching 15 3.4 White

Wireless Control

Model

Description

WSB-1

Relay Box  16A 3.6kW

WST-1

Wireless programmable thermostat (controls up to 4 relay boxes)

WSP-1

Programmable central programmer (controls up to 24 zones)

Contactors

Model

Amperage

Max kW (230V 1ph)

CON-32

32

7

CON-50

50

11.5

CON-80

80

18

ENCL-D

Enclosure for CON-32 and CON-50

Technical specification

Heating Film Specification

Voltage supply: 230V
Outputs: from 0.04kW to 1.3kW depending on model
Film widths: 400mm and 1030mm
Power leads: 2 x 4m long single core power leads
Film material: Polyester
Approvals: EN60335-2-96 as required by the 17th Edition Wiring Regulations (BS7671.2008)
Product thickness: 1mm nominal

I-Board-6 Insulation/Underlay Specification

Material: Extruded polystyrene foam
Sheet size: 856 x 600
Thickness: 6mm
Compressive stress (@10% foam deformation): 10 t/m²
Thermal conductivity: 0.024W/mk
Water absorption by volume: less than 1%
Density: 32kg/m³

VB Vapour Barrier Specification

Material: Polythene
Colour: Black
Thickness: 250mu
Sheet dimensions: 3m x 4m
Approval: BS EN 13967:2012

Features & Benefits

Feature Benefit

Installed directly under laminate or engineered wood floors

No compounds or adhesives are required meaning quick installation

Installation thickness approximately 7mm including insulation/underlay

Low profile installation keeps floor build-up to a minimum

4m pre-wired power leads which can be cut-back when required

Flexibility of thermostat position

Films can be easily reduced in length

It is easy to make minor adjustments during the installation process

14 different lengths in 2 different widths

Easy to plan an installation for any shape room

How it works

BN Thermic electric underfloor heating is installed above the existing sub-floor and underneath the selected floor surface turning the entire floor into a low temperature radiant heater. 

BN Thermic underfloor systems offer the following advantages over conventional heating systems such as radiators:

Heating distribution

Because the heating effect is spread over the entire floor area, the room is heated evenly.  Not only does this maximise levels of comfort but saves energy because it is not necessary to overheat some areas of a room to achieve an acceptable temperature in others.

No significant temperature gradient

With conventional convection based heating systems the temperature at high levels (i.e. above head height) is considerably higher than it is at low level.  As these higher temperatures have no benefit to the occupants of the room, the energy consumed in generating them is entirely wasted.  Underfloor heating is a radiant system which creates virtually no temperature gradient meaning that the temperatures at low level are the same as at high level.

No draughts or air currents

Conventional heating systems rely on air movement to warm a room.  This is not the case with an underfloor system resulting in the elimination of draughts.  This feature also eliminates the potential for the heating system to lift up dust and allergens making underfloor heating popular with asthma sufferers.

Low thermostat setting

The gentle radiant heating from an underfloor heating system will mean that people will experience a temperature slightly higher than the surrounding air temperature.  This effect means that thermostats can be set a few degrees lower than with the equivalent conventional system.

Every room individually controllable

With an electric underfloor heating system it is easy to programme every room to accurately reflect patterns of use.  The energy saving potential of this feature is considerable.

Does not use wall space

The elimination of radiators is the interior designer’s dream being particularly significant is apartments where space can be very limited.

Safety

An underfloor heating system operates at a very low temperature level completely eliniating the risk of burns even for the frail and elderly.

Controls

Standard Thermostats

BN Thermic underfloor heating systems must be controlled by an approved thermostat.   All our thermostats are supplied with a floor probe (with plastic conduit) and have a built-in air sensor.  Primary temperature control can be by either the floor probe or the air sensor.

T16CW Touchscreen thermostat - White

T16CW

T16CB Touchscreen thermostat - Black

T16CB

T16CS Touchscreen thermostat - Silver

T16CS

T16R Remote mounted wall sensor

T16R

T16C       Touchscreen Programmable Thermostat

The T16C is available with white, black or silver surrounds.  The thermostat provides ultra-simple 7-day programming as well as an energy use monitor.  When required, air temperature can be controlled by an IP65 rated, remote-mounted wall-sensor (T16R) which is suitable for bathroom installation.

The T16C can switch loads up to 3.6kW

U16C Programmable thermostat

U16C

U16C      Programmable Thermostat

The U16C offers a simple 7-day programming with buttons hidden behind hinged doors on the thermostat face.  Features include a backlit screen and a summer switch allowing the heating to be switched off without losing the programme.  The U16C can switch loads up to 3.4kW.

 

A16C Non-programmable thermostat

A16C

A16C      Non-programmable Thermostat

The A16C has a smart uncluttered appearance with a dial for temperature adjustment and an on/off switch.  The A16C can switch loads up to 3.4kW.


 

Smart Thermostats

S16CB Smart thermostat

S16CB

S16CW Smart thermostat

S16CW

S16C   Smart Thermostats

App enabled for use with Android or iOS devices, these sophisticated thermostats can switch loads of up to 3.6kW.  S16CB offers a choice of black, or black with chrome detail surrounds. S16CW offers a choice of white, or brushed chrome surrounds.

 

Wireless Control

Different combinations of three standard control components provide a number of convenient wireless control systems for underfloor heating.

WSB-1 Relay Box

WSB-1

WSB-1 Relay Box

The WSB-1 relay box is generally mounted at low level and is suitable for installation in any room including bathrooms.  Each relay box is supplied with a floor probe and will control heating according to the wireless signals it receives from the WST-1 thermostat and/or the WSP-1 central programmer.

The WSB-1 can switch loads up to 3.6kW.

WST-1 Wireless thermostat

WST-1

WST-1 Wireless Thermostat

The WST-1 programmable thermostat is battery powered and can be wall-mounted or simply placed in a convenient location using the small stand provided.  The thermostat can send a signal to up to four WSB-1 relay boxes.

When used with the WSP-1 central programmer, the thermostats programmable functions are superseded and it will act primarily as a wireless air sensor although it will still provide a temporary override function

WSP-1 Central programmer

WSP-1

WSP-1   Central Programmer

The WSP-1 is a compact, touchscreen device providing individual programmable control for up to 24 heating zones.  Generally a heating zone would be an individual room. 

The combination of a single WSP-1 central programmer and the appropriate number of WST-1 thermostats and WSB-1 relay boxes will provide completely flexible control of every room in property from a one location.

Contactors

A suitably rated contactor allows a thermostat to control a larger load than its normal switching capacity. 

CON-32 with ENCL-D

CON-32 with ENCL-D

Model

Amperage

Max kW (230V 1ph)

CON-32

32

7

CON-50

50

11.5

CON-80

80

18

ENCL-D

Enclosure for CON-32 and CON-50

 

Selection

If you would like the experts at BN Thermic to select an underfloor heating system for you, please click below to access our enquiry form.  Simply provide as much information as you have available and we will respond with a detailed proposal.

ENQUIRY FORM

Selecting the required mat or mats for a room is a simple three step process.

Check floor surface
F Series Installation

Components of an LH system

 


LH heating films are specifically designed for installation under laminate and engineered wood floors.  They should not be used with other floor surfaces.

If there is any doubt about the suitability of any given floor surface for use with underfloor heating, confirmation should be sought from the flooring supplier.

 

 

 

 

 

Select the correct heating films

The objective is generally to cover as high a percentage of the free floor area as possible.  The free floor area is defined as the floor area not occupied by permanent fixtures such as kitchen cabinets and wardrobes.

Drawing a dimensioned sketch of the room is usually helpful.  Add the heating films to your sketch keeping electrical connections along one wall where possible.  For ease of installation, we recommend using a small number of wide films rather than a larger number of small films.  Frequently a combination of the two widths will be required for good coverage.   A 50mm gap should be maintained between the walls and the heating films.

Selection Tables

Typical LH Installation

Typical LH installation

400mm Wide Films

Model

kW

Length (m)

Width (m)

LH4-010

0.04

1.0

0.4

LH4-015

0.06

1.5

0.4

LH4-020

0.09

2.0

0.4

LH4-025

0.11

2.5

0.4

LH4-030

0.13

3.0

0.4

LH4-035

0.15

3.5

0.4

LH4-040

0.17

4.0

0.4

LH4-045

0.19

4.5

0.4

LH4-050

0.21

5.0

0.4

LH4-060

0.26

6.0

0.4

LH4-070

0.30

7.0

0.4

LH4-080

0.34

8.0

0.4

LH4-090

0.39

9.0

0.4

LH4-100

0.43

10

0.4

1030mm Wide Films

Model

kW

Length (m)

Width (m)

LH10-010

0.13

1.0

1.03

LH10-015

0.19

1.5

1.03

LH10-020

0.26

2.0

1.03

LH10-025

0.32

2.5

1.03

LH10-030

0.39

3.0

1.03

LH10-035

0.45

3.5

1.03

LH10-040

0.52

4.0

1.03

LH10-045

0.58

4.5

1.03

LH10-050

0.65

5.0

1.03

LH10-060

0.78

6.0

1.03

LH10-070

0.91

7.0

1.03

LH10-080

1.04

8.0

1.03

LH10-090

1.17

9.0

1.03

LH10-100

1.30

10

1.03

Select insulation/underlay and vapour barrier
I-Board-6 Board

I-Board-6

LH films must be installed onto a layer of I-Board-6 insulation/underlay and below a layer of VB vapour barrier.  Heating film, insulation/underlay and vapour barrier must be held in place with LHT high adhesion tape.  Both I-Board-6 and VB must cover the entire floor area not just the heated area.

I-Board-6 is lightweight and easily cut to shape.

 

 

Selection table

Model

Description

Thickness (mm)

Area covered (m²)

I-Pack-6

Pack of 19 boards

6

9.76

I-Board-6

Individual Board

6 0.5

LHT

High adhesion tape (one roll for every 10m² of floor area)

VB

Polythene vapour barrier (one for every 10m² of floor area)

LH

Downloads

Instructions and specification sheets are available for BN Thermic’s entire range of products, including LH Underfloor Heating Film.

LH

Product Images

LH Underfloor heating film

LH Underfloor heating film

Black touch screen thermostat

Black touch screen thermostat

Silver touch screen thermostat

Silver touch screen thermostat

White touch screen thermostat

White touch screen thermostat

Standard 7-day programmable thermostat

Standard 7-day programmable thermostat

Simple non-programmable thermostat with on/off switch

Simple non-programmable thermostat with on/off switch

Optional remote sensor

Optional remote sensor

Show more images

ENQUIRY FORM

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Industrial and Commercial Heating Enquiry Form

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Dimensions

m
m
m

Glazing

m2
m2
°C
°C

Underfloor Heating Enquiry Form

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Dimensions

Pipe freeze Protection Enquiry Form

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