BN Thermic, Commercial and industrial electric heaters and controls

GL Glass Radiator - black
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GL Glass Radiators

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GL Glass Radiator - black

GL Glass Radiator - black

  • Stylish glass radiators in white, black, red or mirror
  • A unique combination of beauty and economy
  • Ideal for both domestic and commercial applications
  • Safe for use in bathrooms
GL - Range of sizes in red

GL - Range of sizes in red

GL - white - wall mounted

GL - white - wall mounted

GL - rear view showing horizontal mountings

GL - rear view showing horizontal mountings

Code

Colour

Output (W)

Dimensions (mm)

GL-03W

White

300

700 x 500

GL-03B

Black

300

700 x 500

GL-03R

Red

300

700 x 500

GL-05W

White

500

900 x 600

GL-05B

Black

500

900 x 600

GL-05R

Red

500

900 x 600

GL-05M

Mirror

500

900 x 600

GL-09W

White

900

1200 x 800

GL-09B

Black

900

1200 x 800

GL-09R

Red

900

1200 x 800

GL-09M

Mirror

900

1200 x 800

Technical Specification

Construction:

Toughened glass

Mounting:

Wall mounted using brackets provided

Orientation:

Vertical or horizontal

Insulation:

Class II, double insulation suitable for bathroom installation

Over-temperature protection:

Auto-reset cut-out 

Ingress protection:

IP44

Electrical connection:

1m pre-wired cable

Model

Colour

Output (W)

Dimensions (mm)

Weight (kg)

 

 

 

W

H

D

 

GL-03W

White

300

700

500

12

14

GL-03B

Black

300

700

500

12

14

GL-03R

Red

300

700

500

12

14

GL-05W

White

500

900

600

12

21

GL-05B

Black

500

900

600

12

21

GL-05R

Red

500

900

600

12

21

GL-05M

Mirror

500

900

600

8

21

GL-09W

White

900

1200

800

12

38

GL-09B

Black

900

1200

800

12

38

GL-09R

Red

900

1200

800

12

38

GL-09M

Mirror

900

1200

800

8

38

Controls

We recommend that GL glass radiators are thermostatically controlled.  This heating technology is particularly well suited to wireless control.

WSB-1 Relay Box

WSB-1

WSB-1 Relay Box

Each heater is connected to a WSB-1 relay box which is generally mounted at skirting level.  The relay box will control the heater according to wireless signals received from a WST-1 thermostat.

 

 

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 and thus can control up to four heaters.

 

WSP-1 Central programmer

WSP-1

WSP-1   Central Programmer

For multi-room installations a WSP-1 central programmer can be used.  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. 

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

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.

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 radiator distribution

Estimating kW Output

In simple terms the output of the installed GL glass radiators must be greater than the heat losses from the room 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.

Once you have arrived at a minimum heater output, selection is generally a simple as selecting the minimum number of heaters to meet this requirement.

Correct Radiator Distribution

GL glass radiators heat people in two ways: by heating the air within a room and by heating people directly.  The direct heating effect means that the experienced temperature is somewhat warmer than the actual air temperature allowing the thermostat to be set a few degrees lower than with conventional heating.  To gain most benefit from the direct heating effect, the radiators should be positioned so that their radiant effect is not obstructed and, when more than one radiator is required, they should be evenly distributed.

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:

 

GL

Downloads

Instructions and specification sheets are available for BN Thermic’s entire range of products, including GL Glass Radiators.

GL

Product Images

GL Glass Radiator - black

GL Glass Radiator - black

GL Glass Radiator - red

GL Glass Radiator - red

GL Glass Radiator - white

GL Glass Radiator - white

GL Glass Radiator - mirror finish

GL Glass Radiator - mirror finish

GL - Range of sizes in red

GL - Range of sizes in red

GL - white - wall mounted

GL - white - wall mounted

GL - rear view showing horizontal mountings

GL - rear view showing horizontal mountings

A GL-09M acting as a heater and a mirror in a modern bathroom

A GL-09M acting as a heater and a mirror in a modern bathroom

Show more images

Installation Images

A GL-05B installed in a modern living room

A GL-05B installed in a modern living room

A GL-09W wall mounted in a modern architect's office

A GL-09W wall mounted in a modern architect's office

A GL05B heating an open plan living room

A GL05B heating an open plan living room

A GL-03W wall mounted in a bedroom

A GL-03W wall mounted in a bedroom

A GL-05B providing comfort heat in a very modern apartment

A GL-05B providing comfort heat in a very modern apartment

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