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ESP - All models
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ESP Radiant Cassettes

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ESP - All models

ESP - All models

  • ESP radiant cassettes provide the most cost economic method of heating buildings with high ceilings
  • Typical applications include sports halls, community halls and auditoria
  • ESP radiant cassettes provide economic heating without  the draughts and noise associated with fan heaters and the light output associated with shortwave radiant heaters
  • ESP radiant cassettes have a smart, sophisticated appearance and yet are extremely robust
Single element cassette available with 900W or 1.2kW outputs

Single element cassette available with 900W or 1.2kW outputs

Double element cassette available with 1.8kW or 2.4kW outputs

Double element cassette available with 1.8kW or 2.4kW outputs

Tripple element cassette available with 3kW or 3.6kW outputs

Tripple element cassette available with 3kW or 3.6kW outputs

Range

Standard Models

Model kW Volts Recommended Mounting Height (m)
Min Max
ESP2-09 0.9 230/1  3.0 8.0
ESP2-12 1.2 230/1  3.0 8.0
ESP2-18  1.8 230/1 3.5 8.0
ESP2-24 2.4 230/1 3.5 8.0
ESP2-30  3.0 230/1 or 400/3 3.5 8.0
ESP2-36 3.6 230/1 or 400/3 3.5 8.0

Compact Models

Model kW Volts Recommended Mounting Height (m)
Min Max
ESP2C-06 0.6 230/1  3.0 8.0
ESP2C-08 0.85 230/1  3.0 8.0

Optional Wall Brackets

Model Description
ESP2-B  Pair of angle adjustable brackets suitable for all ESP2 models

                                      

 

                                     

Technical Specification

Colour: White RAL9010
Finish:  Epoxy polyester powder coating
Construction: Steel case with terminal enclosure located at one end
Heating Element:  Metal sheathed heating elements embedded in specially treated aluminium heat emitters
Installation: Ceiling mounting using brackets provided.

The brackets also provide secure fixing points for suspension
Optional adjustable angle wall mount bracket (model ESP2-B)
Suitable for buildings with ceiling heights up to 10m

Ingress Protection: IP44
Guarantee:  1 year

Performance Data

Standard Models
Model kW Volts Recommended Mounting Height (m)
Min Max
ESP2-09 0.9 230/1  3.0 8.0
ESP2-12 1.2 230/1  3.0 8.0
ESP2-18  1.8 230/1 3.5 8.0
ESP2-24 2.4 230/1 3.5 8.0
ESP2-30  3.0 230/1 or 400/3 3.5 8.0
ESP2-36 3.6 230/1 or 400/3 3.5 8.0

Compact Models

Model kW Volts Recommended Mounting Height (m)
Min Max
ESP2C-06 0.6 230/1  3.0 8.0
ESP2C-08 0.85 230/1  3.0 8.0

Physical Data

Standard Models
Model Dimensions (mm) Weight (kg)
  L W D  
ESP2-09 1550 150 60 5.8
ESP2-12 1550 150 60 5.8
ESP2-18 1550 250 60 9.9
ESP2-24 1550 250 60 9.9
ESP2-30 1550 350 60 13.9
ESP2-36 1550 350 60 13.9

Compact Models

Model Dimensions (mm) Weight (kg)
  L W D  
ESP2C-06 650 250 60 5.5
ESP2C-08 650 250 60 5.5

Features & Benefits

Energy Saving Features

Energy saving radiant cassettes are our most economic means of heating larger spaces.  Savings of up to 30% can be made when compared to conventional convection based heating systems.

Feature

Benefit

No significant temperature gradient

When using fan heaters to heat a large space a typically temperature gradient of 2.5°C per metre would be expected.  The equivalent figure for a building heated with energy saving ESP radiant cassettes is 0.3°C.  Therefore in a 5m sports hall, the air temperature at high level would be more almost 15°C lower when using energy saving radiant cassettes.

Radiant effect

In a building heated with energy saving ESP radiant cassettes the experienced temperature can be as much as 4°C warmer than the actual air temperature.  This means that the thermostat can set up to 4°C lower than with a conventional heating system whilst still maintaining a comfortable temperature.

Quick Warm Up

ESP radiant cassettes will warm a space considerably more quickly than a conventional heating system.  It is therefore possible to reduce the warm up period to an absolute minimum.

Other Features

Feature

Benefit

No moving parts

Apart from periodic cleaning, an ESP radiant cassette is maintenance free and is designed to provide trouble-free service for many years.

Silent and Draught Free with No Light Output

ESP radiant cassettes do not give rise to any air movement whatsoever and are totally silent.  Another benefit is that there is no light output which makes radiant cassettes more suitable than shortwave halogen heaters for applications such as performance spaces.

Unobtrusive appearance

The ESP radiant cassette’s smart, unfussy, modern design coupled with its high mounting position means that it can be considered the most unobtrusive of all space heaters.

 

How it Works

ESP Radiant Cassettes are designed to heat commercial and industrial spaces and are especially suited to buildings with high ceilings such as sports halls.

The cassettes are generally ceiling mounted or suspended at high level in a grid formation to give good area coverage.  Alternatively they can be wall mounted using the optional wall bracket.  Once switched on, the radiant cassettes emit long wave radiant energy providing the quickest means of heating a space. 

ESP radiant cassettes are the most economic means of heating larger spaces.  Savings of up to 30% can be made when compared to conventional convection based heating systems.  There are two reasons for this:

  1. Temperature Gradient.  When using fan heaters to heat a large space a typically temperature gradient of 2.5°C per metre would be expected.  The equivalent figure for a building heated with energy saving radiant cassettes is 0.3°C.  Therefore in a 5m sports hall, the air temperature at high level would be more almost 15°C lower when using energy saving radiant cassettes.
      
    ESP - Air temperature comparison of radiant cassettes with fan heaters

    ESP - Air temperature comparison of radiant cassettes with fan heaters

  2. Radiant effect.  In a building heated with energy saving Radiant Panels, the experienced temperature can be as much as 4°C warmer than the actual air temperature.  This means that the thermostat can set up to 4°C lower than with a conventional heating system whilst still maintaining a comfortable temperature.
     

Control concepts

Detailed control options are detailed elsewhere however we would like to stress that ESP radiant cassettes should always be thermostatically controlled.  These are the most commonly used methods of control.

Wall mounted thermostat.  We generally recommend our Hard Case tamperproof thermostat be wall-mounted at approximately 1.5m above floor level controlling a group of heaters via a suitably rated contactor.

Wall mounted thermostat with set-back setting.  A more sophisticated thermostat from the Hard Case range will allow the heaters to control the temperature at a low (set-back) temperature and provide a boost to high (comfort) temperature when required.  The set-back setting is generally used for frost protection.

Timer control.  A programmable timer used in conjunction with thermostatic control can significantly improve economy.  The timer can be used either to switch between ‘on’ and ‘off’ or ‘set-back’ and ‘comfort’ depending on the thermostat selected. 

Controls

In almost application we strongly recommend that ESP radiant cassettes are thermostatically controlled.  We generally recommend our Hard Case tamperproof thermostats which will control a group of radiant cassettes via a suitably rated contactor.

The thermostat should be wall mounted at approximately 1.5m above floor level and away from other sources of heat, draughts and direct sunlight.

Select between two models depending on the requirements of the heating system:

Tamperproof wall-mounted thermostat

HC-T2 Hard Case Thermostat

HC-T2
Hard Case
Thermostat

HC-D Tamperproof Tool

HC-D
Tamperproof
Tool


Model: HC-T2

BN Thermic’s famous Hard Case industrial and public area thermostats provide rugged tamperproof and vandal resistant control.  Hard Case thermostats require a special tool to gain access the temperature adjustment knob.


 

Tamperproof wall-mounted thermostat with set-back

HC-ST2 Hard Case Thermostat with set-back

HC-ST2
Hard Case
Thermostat with
Set-back

HC-D Tamperproof Tool

HC-D
Tamperproof
Tool


Model: HC-ST2

A Hard Case thermostat is available with all the features of the standard model but with two set-points: high (comfort) and low (set-back).  Typically this device would be used to provide comfort heating when a building is occupied and frost protection at other times.  There are two means of switching between comfort and set-back.

 

Operation Mode One

Use the side mounted button to activate the built-in, programmable timer.  The Hard Case thermostat will then control at the ‘comfort’ set-point until the pre-programmed time period has elapsed at which point it will revert to the default ‘set-back’ temperature.

Operation Mode Two

Use a remote timer (see below) to switch between ‘comfort’ and ‘set-back’ to match the building’s pattern of use.

 

Remote mounted programmable timer

PROTIM-7

PROTIM-7

Model: PROTIM-7

The PROTIM-7 provides 24 hour or 7 day programmable control for any number of OUH industrial fan heaters.  The timer’s robust aluminium case makes it ideal for industrial applications.
Features include the following:

  • Advance to next programme
  • Boost (select 1 hour or 2 hours)
  • Override – permanently on or permanently off
  • Automatic summer update
  • Battery back up

 

Comfort Control Package

ESP - Comfort Control Package

Programmable Package

ESP - Programmable Package

Programmable Package with Set-Back

ESP - Programmable Package with Set-Back

Flexible Package

ESP - Flexible Package

Selection

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

ENQUIRY FORM

For maximum economy and performance your selection needs to meet two requirements:

  1. Sufficient kW output
  2. Correct cassette distribution

Estimating kW Output

In simple terms the output of the installed ESP radiant cassettes must be greater than the heat losses from the building during periods of cold weather.  A small amount of heat is lost through the walls, ceilings and floors with more significant losses through windows and doors.

To estimate the heat loss from your building you may like to use our heat calculation tool

HEAT CALCULATOR

The estimated heat loss figure is the absolute minimum kW output that you should consider installing.  We would suggest adding approximately 50% to this figure to allow for an acceptable warm up time in cold conditions as well as making allowances for exceptional weather conditions and possible errors in the original data used in the estimate.

Correct Cassette Distribution

ESP radiant cassettes can be ceiling mounted or suspended at high level.  For lowest capital cost, we suggest using the highest practical mounting height, whilst using the minimum possible number of radiant panels needed to achieve the estimated kW requirement.   The selection (from the following list) must ensure that the distance between individual panels does not exceed the distance between the panels and the floor.

Model Output Recommended Mounting Heights (m)
    Min Max
ESP2-09 0.9kW 3.0 8.0
ESP2-12 1.2kW 3.0 8.0
ESP2-18 1.8kW 3.5 8.0
ESP2-24 2.4kW 3.5 8.0
ESP2-30 3.0kW 3.5 8.0
ESP2-36 3.6kW 3.5 8.0

ESP - Panels suspension distance 

Heat Calculator

Stage 1 of 5 » Building dimensions

This calculator is provided as a quick and easy means of estimating heat loss from a building. This is a key step in determining the kW output required from a heating system.

Width m
Length m
Height m
Building dimensions

( * ) this data is compulsory

next >>>

Stage 2 of 5 » Environmental Data

Minimum outdoor temperature
(Typically -5°c in the UK)
°C
Required indoor temperature
(Typically 20°c in commercial buildings)
°C
Minimum temperature in the next room
(Input temp only if there is an adjoining room)
°C

Heat losses to an adjoining room or building are usually lower than to the outside world. To allow the calculator to take this into account we have requested the minimum expected air temperatures of an adjoining room. For a stand-along building just leave this field blank.

( * ) this data is compulsory

<<< back next >>>

Stage 3 of 5 » Construction material

U values (W/m²/°c) are a means of determining how well construction material can contain hear. For example a very well insulated wall will have a much lower U value than an un-insulated wall.

All applicable U Values must be completed (refer to guide for assistance)

Input the areas for inside walls, doors and windows if applicable otherwise leave these fields blank.

  Area (m²) U-value
W/m²/°C
Outside wall
Inside walls
Roof
Floor
Windows
Door m ²

Guide to typical U values (W/m²/°C)

External Walls
9" Sold Brick 2.2
11" Brick-block cavity (no insulation) 1.0
11" Brick-block cavity (insulated)) 0.6
Internal Walls
4.5" Brick/plaster 2.2
Plasterboard/ 4" studding/plasterboard 1.8
Floor
Solid concrete 0.8
Suspended timber 0.7
Roof
Corrugated asbestos 5.7
4" solid concrete 4.0
Flat roof 25mm insulation 0.9
Flat roof 50mm insulation 0.6
Glazing
Single glazing 5.6
Double glazing (air cavity) 2.8
Double glazing (argon gas cavity) 2.6
Double glazing low E glass (air cavity) 1.8
Double glazing low E glass (argon gas cavity) 1.5
Door
Timber 2.4
Insulated Roller Shutter 1.4
Un-insulated Roller Shutter 4.0

Stage 4 of 5 » Ventilation

Air changes per hour
(refer to guide for assistance)

The following figures apply to naturally ventilated buildings only. If a building has fan forced ventilation then the number of air changes per hour will be much higher.

Building Typical Air Changes per Hour
Shop 1
Office 0.9
School 0.7
Warehouse 0.5
Hall 0.8

Stage 5 of 5 » Total Heat Loss Calculation

Heat calculation based on the information you've given:

 

ESP

Downloads

Instructions and specification sheets are available for BN Thermic’s entire range of products, including ESP Radiant Cassettes.

ESP

Product Images

ESP - All models

ESP - All models

Adjustable brackets suitable for all ESP2 models

Adjustable brackets suitable for all ESP2 models

Close up of wall bracket fitted to a 1.2kW cassette

Close up of wall bracket fitted to a 1.2kW cassette

2.4kW cassette with optional adjustable brackets

2.4kW cassette with optional adjustable brackets

Close up of wall bracket fitted to a 2.4kW cassette

Close up of wall bracket fitted to a 2.4kW cassette

3.6kW cassette with optional adjustable wall brackets

3.6kW cassette with optional adjustable wall brackets

1.2kW cassette with optional adjustable wall brackets

1.2kW cassette with optional adjustable wall brackets

3.6kW cassette with mounting brackets supplied as standard

3.6kW cassette with mounting brackets supplied as standard

2.4kW cassette with mounting brackets supplied as standard

2.4kW cassette with mounting brackets supplied as standard

Single element cassette available with 900W or 1.2kW outputs

Single element cassette available with 900W or 1.2kW outputs

Double element cassette available with 1.8kW or 2.4kW outputs

Double element cassette available with 1.8kW or 2.4kW outputs

Tripple element cassette available with 3kW or 3.6kW outputs

Tripple element cassette available with 3kW or 3.6kW outputs

1.2kW cassette with mounting brackets supplied as standard

1.2kW cassette with mounting brackets supplied as standard

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Installation Images

ESPs providing unobtrusive radiant heat to a church hall

ESPs providing unobtrusive radiant heat to a church hall

ESPs high mounting positions free wall space up when installed in shops/showrooms

ESPs high mounting positions free wall space up when installed in shops/showrooms

ESPs are ideal for heating squash courts and sports halls

ESPs are ideal for heating squash courts and sports halls

ESPs providing silent, comfort heat in a theatre

ESPs providing silent, comfort heat in a theatre

ESPs wall mounted with the ESP-B brackets

ESPs wall mounted with the ESP-B brackets

An ESP providing comfort heat for shoppers at a garden centre

An ESP providing comfort heat for shoppers at a garden centre

ESPs can be wall mounted, ceiling mounted or suspended on chains

ESPs can be wall mounted, ceiling mounted or suspended on chains

ESPs installed in a classroom

ESPs installed in a classroom

ESPs being used to heat a showroom

ESPs being used to heat a showroom

ESPs can be easily integrated into a lighting system

ESPs can be easily integrated into a lighting system

ESPs wall mounted in an office

ESPs wall mounted in an office

ESPs installed in a meeting room with high ceilings

ESPs installed in a meeting room with high ceilings

Show more images

ENQUIRY FORM

Please provide as much information as possible

Industrial and Commercial Heating Enquiry Form

Please provide as much information as possible

Dimensions

m
m
m

Glazing

m2
m2
°C
°C

Underfloor Heating Enquiry Form

Please provide as much information as possible

Dimensions

Pipe freeze Protection Enquiry Form

Please provide as much information as possible