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IHC In-Screed Cable with IHC-F Fixing Strip
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IHC In-Screed Heating Cable

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IHC In-Screed Cable with IHC-F Fixing Strip

IHC In-Screed Cable with IHC-F Fixing Strip

  • Robust heating cables suitable for installation in a concrete screed
  • Higher watts per metre rating meaning shorter cables and reduced installation time
  • Secure fixing using metal fixing strip

Range

Cables

Model

kW

Cable length (m)

Area Covered  (m²) @ 100W/m²

Area Covered (m²) @ 150W/m²

Area Covered (m²) @ 175W/m2

IHC-016

0.16

8.3

1.6

1.1

0.9

IHC-027

0.27

14.0

2.7

1.8

1.5

IHC-034

0.34

17.2

3.4

2.3

1.9

IHC-045

0.45

22.5

4.5

3.0

2.6

IHC-054

0.54

27.4

5.4

3.6

3.1

IHC-064

0.64

32.1

6.4

4.3

3.7

IHC-072

0.72

35.8

7.2

4.8

4.1

IHC-087

0.87

43.8

8.7

5.8

5.0

IHC-107

1.07

53.5

10.7

7.1

6.1

IHC-129

1.29

64.4

12.9

8.6

7.4

IHC-158

1.58

79.0

15.8

10.5

9.0

IHC-185

1.85

92.4

18.5

12.3

10.6

IHC-230

2.30

117.3

23.0

15.3

13.1

IHC-275

2.75

141.4

27.5

18.3

15.7

Fixing

Model

Description

IHC-F

Metal fixing strip (10m) – typically one strip is required for every 8m² of heated 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

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

Voltage supply

230V

Outputs

From 0.16kW to 2.75kW depending on model

Watts per metre

20

Fixing

IHC-F metal fixing strip recommended

Power lead

3m long two core and earth

Cable approvals

EN60335-2-96 as required by the 17th Edition Wiring Regulations (BS7671.2008)

Cable diameter

5mm

Earth Screen

7 tinned copper wires  (0.3mm diameter) and AL/PET foil

Features and Benefits

5mm diameter cable

Robust design ideal for concrete screed

Twin core heating cable

Electrical connection at one end of the cable simplifying installation

20W/m output

High output means shorter cables reducing installation time

Continuous earth screen

Avoids the risk of electric shock (for example when drilling into the floor)

Single cable with area coverage of up to 27.5m² (at 100W/m²)

Most rooms can be heated with a single cable rather than a combination of cables

Metal fixing strips available

IHC-F fixing strips hold cable securely in place and have convenient holes for easy fixing to insulation layer

 

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

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.

 

 

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

Most commonly IHC cables are fixed onto a layer of insulation (minimum thickness 80mm) using IHC-F metal fixing strip.  We recommended a maximum of 1m between fixing strips.   The cable should be arranged in evenly spaced loops loops.  The cable is then covered in 80mm to 100mm of concrete screed.  Once the screed is completely dry the final floor surface can be applied.  Please ask your flooring supplier to confirm compatibility with underfloor heating.

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 shower trays. 

Use the following table to select the correct cable.  Typically we suggest a watt density between 150W/m² and 175W/m².  Lower densities are sometimes used in very well insulated properties.

For large rooms it is common practice to use more than one heating cable.  In these circumstances the cables should be connected in parallel and controlled by a single thermostat.  Where the combined load of the cables exceeds the switching capacity of the thermostat, a suitably rated contactor should be incorporated into the control circuit.

Model

kW

Cable length (m)

Area Covered  (m²) @ 100W/m²

Area Covered (m²) @ 150W/m²

Area Covered (m²) @ 175W/m2

IHC-016

0.16

8.3

1.6

1.1

0.9

IHC-027

0.27

14.0

2.7

1.8

1.5

IHC-034

0.34

17.2

3.4

2.3

1.9

IHC-045

0.45

22.5

4.5

3.0

2.6

IHC-054

0.54

27.4

5.4

3.6

3.1

IHC-064

0.64

32.1

6.4

4.3

3.7

IHC-072

0.72

35.8

7.2

4.8

4.1

IHC-087

0.87

43.8

8.7

5.8

5.0

IHC-107

1.07

53.5

10.7

7.1

6.1

IHC-129

1.29

64.4

12.9

8.6

7.4

IHC-158

1.58

79.0

15.8

10.5

9.0

IHC-185

1.85

92.4

18.5

12.3

10.6

IHC-230

2.30

117.3

23.0

15.3

13.1

IHC-275

2.75

141.4

27.5

18.3

15.7

IHC-F

Metal fixing strip (10m) – typically one strip is required for every 8m² of heated area

IHC

Downloads

Instructions and specification sheets are available for BN Thermic’s entire range of products, including IHC In-Screed Heating Cable.

IHC

Product Images

IHC In-Screed Cable with IHC-F Fixing Strip

IHC In-Screed Cable with IHC-F Fixing Strip

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