High Density Mat Specifications

Please refer to this chart before choosing your model

Model	Volts	kW	Heated Area (m²)	Mat Size (m)	Weight (kg)
EHM-H41	230	0.41	2.1	4.1 x 0.5	1.4
EHM-H50	230	0.50	2.5	5.0 x 0.5	1.5
EHM-H56	230	0.56	2.8	5.6 x 0.5	1.7
EHM-H67	230	0.67	3.4	6.7 x 0.5	2.1
EHM-H81	230	0.81	4.1	8.1 x 0.5	2.4
EHM-H100	230	1.00	5.0	10.0 x 0.5	3.0
EHM-H121	230	1.21	6.1	12.1 x 0.5	3.5
EHM-H140	230	1.40	7.0	14.0 x 0.5	3.6
EHM-H180	230	1.80	9.0	18.0 x 0.5	4.2
EHM-H215	230	2.15	11.0	21.5 x 0.8	5.2

 

Heating Mats

• An economic method of heating a room and providing a luxurious warm floor
• Manufactured to highest quality for complete peace of mind and backed by a 10 year warranty

Application

• Suitable for any room including conservatories, bathrooms and wet rooms
• Ideal for use with wide variety of floor surfaces including ceramic tiles, porcelain tiles, marble, slate, stone, carpet, vinyl, engineered wood and laminate flooring.

Features

• Twin core heating cable pre-assembled onto a nylon web ensuring uniform spacing and ease of installation
• Pre-wired 3m power lead
• Continuous earth braid
• Continuous double sided tape of underside of heating mat allows secure placing on any clean surface

Cable Specification

• Approved to EN60335-2-96 as required by the 17th Edition Wiring Regulations (BS7671.2008)
• EMC compliant
• 230V supply
• Twin core cable diameter 3mm to 4mm
• Earth screen protection by means of AL/PET Foil

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Installation

Tiled Floor

The EHM heating mat should be installed in a flexible self-leveling compound or directly into the tile adhesive. It is important that the heating cable is completely covered.

Other Floor Surfaces (carpet, vinyl, engineered wood and laminate floor)

The EHM mat should be completely covered in a flexible self-leveling compound with the required floor surface applied once the compound is completely dry. Great care must be taken to ensure that fixing devices are not driven through the heating cable. Where underlay is required, the lowest tog option is recommended. 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.

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Selection

Standard or High Density

Other than in exceptional circumstances standard density heating mats will provide enough output to serve as a sole source of heat in a room.

High density mats may be preferred when one of the following applies.

• A room has exceptionally high heat losses (this may apply to some conservatories)
• A very rapid heat up is required perhaps because a room is rarely used
• It is only possible to heat a small percentage of the total floor area

Size of Mat

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.

As a rule of thumb, we suggest selecting a mat with total area approximately 10% less than the total free floor area. This will allow for perimeter spacing and ensure easy installation

Large Rooms

For large rooms it is common practice to use more than one heating mat. In these circumstances there is a choice of subdividing the room into separate zones each controlled by its own thermostat or connecting the heating mats together electrically in parallel and using a single thermostat. When controlling more than one heating mat from a single thermostat it may be necessary to incorporate a contactor into the control circuit.

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Control

Thermostatic control must be used. BN Thermic offers a range of thermostats all of which are supplied with a floor probe. The thermostats can be configured for primary control via the built-in air sensor or via the floor sensor. When using more than one heating mat, check that the combined load of the heating mats is within the switching capacity of the selected thermostat. When the combined load is greater than the switching capacity of the selected thermostat an appropriately rated contactor must be selected.

A16C
Simplicity is the key. The A16C has a smart uncluttered appearance with a dial for temperature adjustment and an on/off switch. Capable of switching loads up to 3.4kW, the A16C is configurable for ‘air and floor sensor’ or ‘floor sensor only’

U16C
The U16C offers simple 7-day programming with programming buttons hidden behind hinged doors on the thermostat face. Capable of switching loads up to 3.4kW, the U16C is configurable for ‘air and floor sensor’ or ‘floor sensor only’. Features include a backlit screen and a summer switch allowing the heating to be switched off without losing the programme.

T16C
Full colour touch screen thermostat. Can switch loads of up to 3.6kW and provide ultra-simple 7-day programming. Available with white or silver surrounds, the T16C can be configured for ‘air and floor’ or ‘floor only’ control. When required, the air temperature can be controlled via an IP65 rated remote mounted wall-sensor (T16R - Sold Separately). This arrangement is particularly well suited for bathroom applications. Also allows the user to monitor energy usage and running costs. 

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F-Board Insulation

To limit downward heat loss and to significantly improve the economy of an underfloor heating system, the use of F-Board insulated tile backer boards is highly recommended. Installed directly onto the sub-floor and below the heating mat, they provide exceptional thermal insulation with minimal increase in floor height. F-Board insulated tile backer boards are generally held in place using standard tile adhesive.

Selection

Each F-Board covers 0.72m² and sufficient boards should be selected to completely cover the floor area. Total floor area (m²) ÷ 0.72 = minimum number of boards required

F-Board-6

Provides an extremely effective insulation barrier where floor build-up must be kept to a minimum.

F-Board-10

As the effectiveness of insulation increases with thickness, F-Board-10 should be selected where maximum economy is required and additional floor build-up is acceptable.

Features

Full resistance to moisture absorption
Combination of low profile, strength and thermal efficiency
Lightweight and easily cut to shape
Easily fixed in place using standard tile adhesive

Technical Specification

Compressive Strength - 300kPa
Flexural Strength (transverse) - 600kPa
Flexural Strength (longitudinal) - 700kPa
Thermal Conductivity -  0.027 w/m°K
Water Absorption -  0.2% by volume
Temperature range -  -50°C to +75°C
Fire Performance - Class O (BS 476 part 6, 7)

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Accessories

Floorprep Primer

Suppresses dust and improves adhesion on a variety of sub-floor types including concrete and plywood. One bottle of Floorprep Primer covers approximately 6m² when diluted 1:1.

Floorprep is easily applied using a Floorroll Roller.

Not required when using F-Board insulated tile backer board

EHM-R Kit - Cable Repair Kit (for emergency use only)

For use when a heating cable has been cut usually during installation or by drilling
through the floor

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