Spec 115 Vented Cylinders

User Manual: Spec 115 Vented Cylinders

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Vented Cylinder Range
Standard cylinders manufactured from either copper or stainless steel

S U P P L I E R S

T O

T H E

M E R C H A N T

T R A D E

F O R

O V E R

4 0

Y E A R S

Cylinder Range
Customer Satisfaction
In answer to the demands of customers for a quick
response to quotations and deliveries, we have
specifically tailored our nationwide network of Super-Depot
manufacturing units to the production of copper cylinders
and tanks, enabling us to offer the unique benefits of no
minimum order quantity and minimal delivery charges for
‘one-offs’
To ensure a consistently high standard of copper cylinder,
whichever nationwide depot that cylinder is manufactured
in, Gledhill now have a dedicated training facility at the
Blackpool headquarters. Here, new staff are trained in
all aspects of copper brazing and forming as well as
being given the technical theory behind copper cylinder
manufacture.

Gledhill provide standard and ‘special’ cylinders to the
merchant trade. The standard range are manufactured from
both stainless steel and copper. Our copper range includes
cylinders and combination units for all traditional domestic
applications; commercial and industrial cylinders and
calorifiers; packaged plumbing units, products for use with
off peak electricity and thermal stores suitable for use with
all types of alternative energy.

2

the complete bespoke cylinder service
Ordering your bespoke designed cylinder couldn’t be simpler;
•
•
•
•
•

Place your order, with all the requirements at the merchant
Receive confirmation of the price within one hour
The cylinder is manufactured within one of our nationwide depots
Same day collection available from the depot*
Next day delivery to any mainland UK address at no extra cost

* The same day collection and next day delivery service is subject to orders placed before 1pm

PLACE YOUR ORDER

MANUFACTURED LOCALLY

DELIVERED NEXT DAY

3

For many years, Gledhill have been well known in the

range of installations; either matching the exact specification

industry for our capability to produce copper cylinders to

of an old domestic cylinder that needs replacing to creating

custom specifications, ie tapping heights, connection sizes

a horizontal boiler to fit into the confined space of an attic.

and positions etc.
Cylinder sizes can range from a 45-litre cylinder for use on
The versatility of copper makes it the perfect choice of

pleasure boats, to a 960-litre industrial-sized model for use

material to produce bespoke, tailor-made cylinders that can

in commercial premises.

be manufactured locally in a fast turnaround time. This has
led to high demand, particularly for bespoke orders and

These cylinders are all manufactured in compliance

one-off specials, that can be custom-made in just a matter

with BS1566 and comply with 2010 Part L1B Building

of hours.

Regulations Replacement Cylinder requirements.

The buoyant demand for copper specials, manufactured
through the Gledhill Rapide service, comes from a wide

Storage Capacities
Direct Cylinder Capacities Shown In Litres (Reduce by 2.5% for indirect models)
Height

Diameter

mm

Inches

300mm (12”)

350mm (14”)

375mm (15”)

400mm (16”)

450mm (18”)

500mm (20”)

600

24

35

48

55

60

77

-

675

27

40

55

62

70

86

-

750

30

45

62

70

80

98

-

825

33

50

69

78

89

109

-

900

36

55

74

87

96

120

136

975

39

60

83

95

107

135

147

1050

42

65

90

103

115

144

158

1200

48

75

103

118

134

166

190

1350

54

-

-

-

-

-

227

1500

59

-

130

148

170

218

245

1800

71

118

164

180

206

277

318

A range of sizes from the table above are also available manufactured from stainless steel, please see page 4 for further details.
Other sizes are available, please contact your local manufacturing depot for further details.

Standard Combination Cylinder Capacities
Capacity
Height (mm)

Diameter (mm)
Hot (litres)

Cold (litres)

750

450

60

20

900

450

85

20

1075

450

115

20

1200

450

120

40

1400

450

145

40

1500

450

166

40

1850

450

210

40

1200

500

145

45

1500

450

166

40

4

Other Considerations
What else do you need to consider when ordering a Gledhill cylinder?
Grades of cylinder
There are three ‘Grades’ of vented cylinder G1, G2, G3 all
are built to the same manufacturing standard, the principle
difference between the three grades is the gauge of the
copper sheet used. To determine the grade required

of the cylinder. This measurement is known as the ‘working
head’ and determines the grade of cylinder to be used.

Gravity coil
When ordering your Gledhill cylinder, you would need
to specify if it requires a gravity coil. This is where the
circulation of the hot water circulation is attained by using

10 metres

feed and expansion) tank serving the cylinder and the base

15 metres

25 metres

measure the distance from the waterline in the header (or

the natural convection current rather than by the use of a
circulation pump to ‘force’ the water around the system.
The main difference in the cylinder design between
a pumped and gravity circulation system is that the
connections/coils are larger in the gravity systems to

Grade 1

provide less resistance and increase the flow rate.

(up to 2.5 bar)

Grade 2

(up to 1.5 bar)

Grade 3

(up to 1.0 bar)

Additional Components Available At Time Of Order
Extras Code

Description

Extras Code

Description

EX001

Compression fittings per 4

EX021

50 ltr copper F&E tank (high temperature)

EX002

Shower take off

EX022

XC010 - cylinder stat

EX003

Extra tapping added

EX023

XC007 - Brawa mixer valve

EX004

Drain cock added

EX024

XB435 - Thermometer

EX005

60mm Rockwool added

EX025

Torrent immersion and stat

EX006

Immersion heater

EX026

Titanium Immersions

EX007

Next day delivery

EX027

1¼" Tappings

EX008

High recovery coil

EX028

1½" Tappings

EX009

Gravity coil

EX029

2" Tappings

EX010

Horizontal pattern

EX030

SP coil for 210 TEC

EX011

Cradles supplied

EX031

SP coil for 250 TEC

EX012

Same day delivery

EX032

SP coil for 350 & 450 coil

EX013

Part 2 Ball valve & Float

EX033

XC011 - Overheat stat

EX016

Stretched coil

EX034

2nd PHE & control Panel

EX017

opposite side coil (flow & return)

EX035

Solid fuel tappings x 2

EX018

Showercyl coil

EX038

70 Ltr Copper F&E tank (high temperature)

EX019

20 ltr copper F&E tank (high temperature)

EX040

30 Ltr Copper F&E tank (high temperature)

EX020

40 ltr copper F&E tank (high temperature)

EX046

95 Ltr Copper F&E tank (high temperature)

5

EnviroFoam Stainless
Stainless steel vented cylinder, the true replacement for your copper cylinder
Manufactured to comply with the HWA standard for
stainless steel vented cylinders, these cylinders also have

• 2010 Part L1b compliant

strong environmental credentials including;
• industry leading 35mm HCFC free insulation

• Compression fittings

• exceptionally low standing heat loss, in anticipation of
EUP regulations

• Tapping positions to BS1566
specifications

• insulation incorporates Polyol which is derived from
Rapeseed oil - a fully renewable resource, with an
industry leading Global Warming Potential of 0.7

• 10 year warranty

• with a Duplex stainless steel internal cylinder, the
product is fully recyclable at the end of its working life

• Duplex stainless steel

With the open vented stainless steel cylinder, you will also
benefit from;

• Power shower take-off/secondary
return on most models as standard

• next day lead time availability
• BS1566 and 2010 Part L1B compliant
• Easy access to immersion heater boss

• 100% Recyclable

• 400mm diameter models have 22mm compressions
• 450mm x 900mm model has 22mm compressions

• Next day delivery available

• Remaining 450mm diameter models have 22mm
compressions on coil and 28mm on cold feed and hot
water draw off.

Indirect Specifications

Gledhill
Code

BS
1566
ref

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
(litres)

SE36X18IND

7

900

450

117

SE42X18IND

8

1050

450

140

SE48X18IND

9

1200

450

162

SE36X16IND

2

900

400

94

SE42X16IND

3

1050

400

112

Direct Specifications

SE36X18DIR

7

900

450

120

6

EnviroFoam Copper
Copper vented indirect cylinder for use with a conventional boiler
Manufactured to BS1566 and 2010 Part L1B compliant,
these cylinders have strong environmental credentials

• 2010 Part L1b compliant

including;
• industry leading 35mm HCFC free insulation

• Compression fittings

• exceptionally low standing heat loss, in anticipation of
EUP regulations

• 10 year warranty

• insulation incorporates Polyol which is derived from
Rapeseed oil - a fully renewable resource, with an

• Low standing heat loss

industry leading Global Warming Potential of 0.7
• with a copper internal cylinder, the product is fully

• 100% recyclable

recyclable at the end of its working life
• manufactured at 9 locations in the UK, the cylinders have

• Next day delivery available

a lower carbon footprint derived from transportation than
is typical in the industry

• Secondary return is an optional extra
available on larger models

As well as being the most attractive open vented copper
cylinder available on the market, you will also benefit from;
• next day lead time availability
• compression fittings available
• 25 minute recovery time
• BS1566 and 2010 Part L1B compliant
• Easy access to immersion heater boss

Gledhill
Code

BS
1566
ref

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
(litres)

BIND15

2

900

400

94

BIND16

3

1050

400

112

BIND19

4

675

450

84

BIND20

5

750

450

95

BIND21

6

825

450

106

BIND22

7

900

450

117

BIND23

8

1050

450

140

BIND24

9

1200

450

162

BIND25

9E

1500

450

213

BIND27

10

1200

500

185

BIND29

11

1500

500

239

BIND31

12

1200

600

280

BIND32

13

1500

600

360

BIND33

14

1800

600

440

The extra components available with this product are:
EX001, EX002, EX004, EX006, EX007, EX009, EX010,
EX011, EX012, EX016, EX017
For the full description, please refer to the table on page 5.

7

High Recovery Coils
Available for use in copper cylinders
The EnviroFoam Copper cylinders are also available with a
special high performance heat exchanger, on request, which

• 2010 part L1b compliant

reduces boiler cycling and maximises the time the boiler
can operate in condensing mode. These were previously
known as our CondenCyl range.

• High recovery

The special coil enables recovery in only 14 minutes which

• Energy saving

conforms to CHESS best practice. The reduction in boiler

• For use with fully pumped systems

cycling and faster recovery time combine to reduce the cost
of producing hot water.

• Perfectly matched with condensing
boilers

The high efficiency coil and its ability to heat only the water
you require means that a smaller capacity cylinder can be
used. For example, a typical 120 litre cylinder to meet Part

• 100% Recyclable

L1B requirements would reduce to 80 litres using a high
recovery coil.

• Next day delivery available

Utilising the EnviroFoam insulation reduces standing losses
– particularly beneficial during summer months.
Sizes shown below are indicitave. Please quote standard
codes and specify high recovery coils at the time of order.

Gledhill
Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
(litres)

BIND13

750

400

77

BIND15

900

400

94

BIND16

1050

400

112

BIND22

900

450

117

BIND23

1050

450

140

The extra components available with this product are:
EX001, EX002, EX004, EX006, EX007, EX008, EX012,
EX017
For the full description, please refer to the table on page 5.

8

Super Recovery Cylinders
For use where rapid recovery of the cylinder contents is required
The quick recovery cylinder has a special high performance
heat exchanger which reduces boiler cycling and maximises

• 2010 Part L1b compliant

the time the boiler can operate in condensing mode.

• Compression fittings

Its special coil enables recovery in as little as 5 minutes,
assuming a correctly sized boiler is installed.

• 10 year warranty

The reduction in boiler cycling and faster recovery time
combine to reduce the cost of producing hot water.

• Recovery from 5 minutes

The super recovery cylinders’ high efficiency coil and its

• Recovers as it is being used

ability to heat only the water you require means that a smaller

• For use with fully pumped systems

capacity cylinder can be used. This makes it the ideal
replacement choice where space is an issue but rapid reheat
times are still required.

• 100% Recyclable

The cylinders 35mm of high insulation EnviroFoam further

• Next day delivery available

reduces standing losses – particularly beneficial during
summer months.

Super Recovery Specifications
Gledhill Code

BIHR045

BIHR080

BIHR120

Cylinder Size
(mm)

600 x 350

750 x 400

900 x 450

Cylinder Capacity
(litres)

45

80

120

9kW

11.9

21.1

31.7

12kW

8.9

15.8

23.8

15kW

7.1

12.7

19.0

24kW

4.6

8.2

11.9

30kW

3.9

6.9

9.5

Recovery
time in
minutes to
raise temp.
by 40°C
for
different
boiler
outputs

The extra components available with this product are:
EX002, EX004, EX006, EX007, EX012, EX017
For the full description, please refer to the table on page 5.

9

EnviroFoam Copper
Copper vented direct cylinder
Manufactured to BS1566 and 2010 Part L1B compliant,
these cylinders have strong environmental credentials

• 2010 part L1b compliant

including;
• industry leading 35mm HCFC free insulation

• Compression fittings available

• exceptionally low standing heat loss, in anticipation of
EUP regulations

• 10 year warranty

• insulation incorporates Polyol which is derived from
Rapeseed oil - a fully renewable resource, with an

• Low standing heat loss

industry leading Global Warming Potential of 0.7
• with a copper internal cylinder, the product is fully

• 100% recyclable

recyclable at the end of its working life
• manufactured at 9 locations in the UK, the cylinders have

• Next day delivery available

a lower carbon footprint derived from transportation than
is typical in the industry
As well as being the most attractive open vented copper
cylinder available on the market, you will also benefit from;
•

next day lead time availability

•

compression fittings available

•

BS1566 and 2010 Part L1B compliant

•

Easy access to immersion heater boss

Gledhill
Code

BS
1566
ref

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
(litres)

BDIR14

2

900

400

96

BDIR15

3

1050

400

115

BDIR17

4

675

450

86

BDIR18

5

750

450

98

BDIR19

6

825

450

109

BDIR20

7

900

450

120

BDIR21

8

1050

450

144

BDIR22

9

1200

450

166

BDIR23

9E

1500

450

218

BDIR25

10

1200

500

190

BDIR27

11

1500

500

245

BDIR29

12

1200

600

290

BDIR30

13

1500

600

370

BDIR31

14

1800

600

450

The extra components available with this product are:
EX001, EX002, EX004, EX006, EX007, EX010, EX011,
EX012
For the full description, please refer to the table on page 5.

10

Combination Units
Both direct and indirect configurations
The combination cylinder is specifically designed to be
installed into properties without a loft space ie apartments
etc. With the feed tank being incorporated into the
combination unit, a separate cold water storage tank is
not required, therefore installation is simplified and costs
reduced.
With the combination unit, also you will also benefit from;
•

next day lead time availability

•

compression fittings available

•

high recovery coil available

•

electric only direct units

•

indirect units for use with central heating systems

•

BS1566 and 2010 Part L1B compliant

Direct specifications
Gledhill
Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
hot
(litres)

Capacity
cold
(litres)

BDCOM01

900

400

65

15

BDCOM02

1050

400

85

20

BDCOM03

900

450

85

20

BDCOM04

1050

450

115

20

BDCOM05

1200

450

115

40

BDCOM06

1400

450

144

40

BDCOM07

1500

450

166

40

BDCOM08

1800

450

210

40

Indirect specifications
Gledhill
Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
hot
(litres)

Capacity
cold
(litres)

BICOM01

900

400

65

15

BICOM02

1050

400

85

20

BICOM03

900

450

85

20

BICOM04

1050

450

115

20

BICOM05

1200

450

115

40

BICOM06

1400

450

144

40

BICOM07

1500

450

166

40

BICOM08

1800

450

210

40

The extra components available with this product are:
EX001, EX002, EX004, EX006, EX007, EX008, EX009,
EX012, EX013, EX016, EX017, EX018
For the full description, please refer to the table on page 5.

11

Economy 7 Combination
For use with electric off-peak tariffs
The Economy 7 range of domestic hot water combination
cylinders have been designed to maximise the heating
potential electric off-peak tariffs.
The combination cylinder is specifically designed to be
installed into properties without a loft space ie apartments
etc. With the feed tank being incorporated into the
combination unit, a separate cold water storage tank is
not required, therefore installation is simplified and costs
reduced. These cylinders are available in both direct and
indirect patterns.
These cylinders also have other benefits including;
• 2010 part L1b compliant
• compression fittings available
• 10 year warranty
• low standing heat loss
• next day lead time availability
• Utilises either Economy 7 or Economy 10 electric tariffs

Direct specifications
Gledhill
Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
hot
(litres)

Capacity
cold
(litres)

BEDCT01

1200

450

120

40

BEDCT02

1400

450

144

40

BEDCT03

1500

450

166

40

BEDCT04

1800

450

210

40

Gledhill
Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
hot
(litres)

Capacity
cold
(litres)

BEICT01

900

400

65

15

Indirect specifications

BEICT02

900

450

85

20

BEICT03

1050

400

86

20

BEICT04

1050

450

115

20

BEICT05

1200

400

110

20

BEICT06

1200

450

120

40

BEICT07

1500

400

140

25

BEICT08

1500

450

166

40

BEICT10

1800

450

210

40

The extra components available with this product are:
EX001, EX002, EX004, EX006, EX007, EX012, EX013,
EX018
For the full description, please refer to the table on page 5.

12

Economy 7 Cylinders
For use with electric off-peak tariffs
The Economy 7 range of domestic hot water cylinders have
been designed to maximise the heating potential electric
off-peak tariffs.
Manufactured to BS1566 and 2010 Part L1B compliant,
these cylinders have strong environmental credentials
including;
• industry leading 35mm HCFC free insulation
• exceptionally low standing heat loss, in anticipation of
EUP regulations
• insulation incorporates Polyol which is derived from
Rapeseed oil - a fully renewable resource, with an
industry leading Global Warming Potential of 0.7
• with a copper internal cylinder, the product is fully
recyclable at the end of its working life
• next day lead time availability
• compression fittings available
• 100% recyclable

Direct specifications
Gledhill
Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
(litres)

BEDC01

1050

400

116

BEDC02

900

450

120

BEDC03

1050

450

144

BEDC04

1200

450

166

BEDC05

1500

450

210

Indirect specifications
Gledhill
Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

Capacity
(litres)

BEICY01

1050

400

114

BEICY02

900

450

117

BEICY03

1050

450

140

BEICY04

1200

450

162

BEICY05

1500

450

206

The extra components available with this product are:
EX001, EX002, EX004, EX006, EX007, EX008, EX009,
EX012, EX013, EX018
For the full description, please refer to the table on page 5.

13

Rectangular Tanks
Direct and indirect rectangular combination tanks
The combination tanks are supplied in direct and indirect
configurations. Both types of unit provide gravity hot water and
can be installed at high level in a cupboard or in a roof space.
The indirect model can also be used on pumped and sealed
systems. There are three standard capacities shown in the
table below, but other bespoke sizes are available.
The direct model is designed for use with all off-peak tariffs,
the thermal properties of the HCFC free insulation ensure low
energy costs to the consumer. The Direct Combination Tank
ensures a fast, simple installation that will save money, time
and materials, and can be supplied with two three-kilowatt
immersion heaters and thermostats factory-fitted to make
installation even quicker.
Even with future changes to the heating installation the Indirect
Combination Tank would not require to be replaced. For
example, should the heating system be changed from open
vented to a sealed primary circuit it can be adapted by simply
Figure 1

blanking off the primary cold feed and primary vent connections.
Figure 1 shows a hot water store designed for use with
electric.
Figure 2 shows a hot water store designed to be used with a
sealed system or it can be used with a separate F&E tank for
a fully pumped system.
Please note separate cold tanks are also available on request.

Direct Specifications
Gledhill
Code

Capacity
(litres)

Height
(mm)

Width
(mm)

Depth
(mm)

BDRCT115

115

1040

410

535

BDRCT135

135

1040

460

535

BDRCT160

160

1260

400

535

Gledhill
Code

Capacity
(litres)

Height
(mm)

Width
(mm)

Depth
(mm)

BIRCT115

115

840

535

540

BIRCT135

135

840

535

570

BIRCT160

160

840

535

660

Figure 2

Indirect Specifications

14

Seagull
Packaged plumbed units
A fully packaged plumbing unit, the cold water supply tank,
the primary feed and expansion tank and the domestic hot
water storage tank are all fully packaged in rectangular or
circular formats. The minimum of installation time is required
because the time wasted in making connections between
remote sited tanks and the hot water storage tank has been
completely removed.
Specified by local authorities and leading architects and
consultants, the Seagull packaged plumbing units are
designed to make the maximum use of available space. The
rectangular version is particularly suitable for use in restricted
areas and in roof areas where headroom is limited. Circular
patterns and separate cold tanks are also available.
When using with a pumped heating system, ensure the cold
feed and open vent connections comply with best practice.
Figure 3 shows a unit to be used with a gravity primary or
Figure 3

for replacing an old gravity system with a pumped system.
Two pumps will be needed. Speak to the Gledhill technical
department for guidance.
Figure 4 shows a unit to be used as figure 3, but the only
difference is that these units are circular.
Although a small selection of units are shown below, other
sizes and positions of tappings can be specified at the time
of order and compression fittings can be requested.

Rectangular Tank Hot Capacity / Dimensions
Gledhill
Code

Capacity
(litres)

Length
(mm)

Depth
(mm)

Height
(mm)

BSRCT115

114

615

465

915

BSRCT135

136

615

465

1030

BSRCT160

160

615

465

1130

Circular Tank Hot Capacity / Dimensions
Capacity
(litres)

Height
(mm)

Diameter
(mm)

0BSCT00006

114

1270

450

0BSCT00007

136

1270

500

0BSCT00010

180

1470

500

Figure 4

Gledhill
Code

15

SunSpeed
Domestic hot water copper cylinder for use with solar energy
SunSpeed is a domestic hot water cylinder designed for

The SunSpeed is an open vented cylinder which makes the

use with solar panels, with cylinder capacities ranging

location of the cylinder more flexible because the cylinder

from 120 to 332 litres. It is a copper cylinder with two heat

does not require a safety discharge pipe and makes it

exchangers, one for solar input and one for a boiler input.

inherently safe.

The dedicated solar volumes range from 34% to 51%

The SunSpeed cylinders are insulated using 35mm HCFC

with the majority exceeding 40% enabling the best use

free EnviroFoam to comply with Part L of the Building

of the solar panels. These dedicated solar volumes allow

Regulations. This insulation incorporates Polyol which is

maximum suitable solar panels surface area from 2.7m2 to

derived from Rapeseed oil - a fully renewable resource, with

6.7m . The surface area of the solar heat exchanger coil is

an industry leading Global Warming Potential of 0.7. It also

designed to exceed Building Regulations requirements.

provides exceptionally low standing heat loss.

The boiler coil comes into play in the cooler months of the

Please note other sizes other than the ones shown in the

year as the solar input diminishes. A correctly sized cylinder

table below are available, please enquire with the local

will ensure enough hot water is available to the householder

manufacturing depot.

2

during these months as the dedicated solar volume will not
be heated by the boiler. The boiler coil is sized appropriate
to the cylinder and gives a recovery time of less than 26
minutes with sizes to meet all regulations.

Specification

Gledhill
Code

Nominal
overall
capacity
(litres)

Cylinder
size (mm)

Dedicated
solar
volume
(litres)

Surface
area of
solar
coil
(m2)

BSUN201

120

1050 x 400

41

0.29

BSUN202

138

1200 x 400

55

0.29

BSUN203

150

1300 x 400

61

0.29

BSUN204

163

1400 x 400

66

0.29

BSUN205

175

1500 x 400

78

0.43

BSUN207

150

1050 x 450

60

0.29

BSUN208

174

1200 x 450

77

0.36

BSUN209

190

1300 x 450

84

0.36

BSUN210

206

1400 x 450

92

0.43

BSUN211

222

1500 x 450

109

0.50

BSUN212

269

1800 x 450

132

0.65

BSUN213

332

1800 x 500

170

0.72

16

Torrent ECO Cylinders
Thermal stores providing both heating and mains pressure hot water
A thermal store provides the perfect solution to a homes

The Torrent ECO is manufactured from copper, by our

heating and hot water requirements. Torrent ECO offers

trained coppersmiths, within Gledhill’s nine nationwide

more options than any other store or cylinder, and is

manufacturing depots.

designed to reduce heating costs by offering complete
flexibility for householders to use multiple energy sources.

This provides the flexibility to specifically design the
thermal store to suit their own requirements, allowing the

The Torrent ECO enables the hot water within the store

homeowner to maximise the available heat sources, whether

to circulate around the heating system to provide heat

they are traditional boilers or electric immersions, or the

to the property, with the domestic hot water being mains

growing popularity of alternative energy fuel sources.

cold water instantaneously heated through a plate heat

Energy source compatibility

exchanger.
Thermal stores provide many additional benefits including:
• Provides mains pressure hot water
• No annual maintenance or safety check requirement
• No discharge pipework
• No risk of legionella
• Inherently safe being an open vented cylinder
• No G3 qualification requirement for installation

Gas /Oil Boiler

Immersion Heater

Solid Fuel Boiler

Heat Pump

Open vented or
sealed primary boilers
Electricity from either mains
or solar PV
Wood burning or solid fuel
boilers
Air source or ground source
heat pumps

Solar Thermal

Solar thermal

The cylinder is open vented, enabling uncontrolled heat
sources such as woodburning stoves to be used.

Legionella and scald protection
The domestic hot water is generated by mains cold water
being instantaneously heated as it passes through the
heat exchanger, which is then delivered to the taps. This
method of generating the hot water completely removes the
risk of legionella. Gledhill’s patented intelligent controls, in
conjunction with the sensors, regulates the temperatures
being delivered to the taps or shower, preventing the risk of
scalding.
For more information on the Torrent ECO range, and the
options available, please refer to the separate brochure.

17

Twin Coiled Cylinder
For use with two heat sources ie. solid fuel and conventional boiler
The twin coil cylinders are designed to be used with two
heat sources, including uncontrolled heat sources such as
solid fuel (Aga) alongside a conventional gas or electric
boiler.
To boost the efficiency, an optional high recovery coil is
available.
The cylinders are available in all three grades, which needs
to be specified at the time of ordering, and are available in
bespoke size and specifications.
All the cylinders are 2010 part L1B compliant and come with
a 10 year warranty.
Compression fittings are available on these cylinders, but
will need to be specified when ordering.
Sizes shown below are indicitave. Please quote standard
codes and specify stacked or interlocked coil configuration
at the time of order.

Twin Coil Specification
Gledhill Code

Cylinder
height
(mm)

Cylinder
diameter
(mm)

BTCI001

900

450

BTCI002

1050

450

BTCI003

1200

450

BTCI004

1500

450

BTCI005

1800

450

BTCI006

900

400

BTCI007

1050

400

BTCI008

1200

400

BTCI009

1500

400
500

BTCI010

1500

BTCI011

1400

450

BTCI012

1700

450

BTCI013

1350

450

BTCI014

1600

450

*BTCI015

1200

450

*BTCI016

1200

500

*BTCI017

1300

450

* These models are combination tanks

18

Horizontal Cylinder
For use where installation location height is restricted
Where the height of a room restricts the installation of a
standard cylinder, then a horizontal cylinder may well be the

• 2010 part L1b compliant

answer. These are particularly suited to confined loft spaces
and are available either as direct or indirect, which can also

• Suitable for gravity or pumped
systems

be supplied with support cradles.
These units provide a highly effective and efficient means

• 10 year warranty

of providing and storing hot water where headroom is at a
premium.

• Available with twin coil

A twin coil configuration can be specified when ordering, to

• 100% recyclable

utilise solar power or a solid fuel boiler in conjunction with a
conventional boiler.

• Compression fittings available

19

Commercial Cylinders
Cylinders and calorifiers for commercial and industrial uses
Gledhill manufacture a complete range of cylinders and
calorifiers for commercial and industrial applications.
Calorifiers are available as standard patterns, horizontal
or vertical or high performance ‘Heatspeed’ types. All are
manufactured from copper, long recognised as the best
material for water storage vessels giving the longest life.
The direct pattern is ideal where the only heatsource is
electricity, although these can also be made to incorporate a
solar coil where a solar input is also available.
The indirect patterns as either 1 or 2 hour recovery as
standard, but can be specified for a 30 minute recovery
when ordering. These can also be used with solar or solid
fuel inputs. Extra tappings or coils are also available to run
underfloor heating from.
Capacities range up to 1000 litres and products are
individually made to order to accommodate connections
and heat exchangers to suit individual applications.
A full range of extras including bolted heads, inspection
ports, hand holes and cradles are available if required.
Systems with high draw rate potential over extended periods
are best served by units with high recovery capability and
moderate storage capacity for balancing purposes.

Indirect Calorifier Specifications
Size (mm)

Nominal (litres)

30 minute recovery
coil surface area (m2)

60 minute recovery
coil surface area (m2)

Working head (m)

1200 x 600

280

1.14

0.86

10, 15, 18.5, 31

1475 x 600

356

1.4

1.05

10, 15, 18.5, 31

1475 x 685

450

1.78

1.33

10, 15, 18.5, 24

1830 x 600

450

1.78

1.33

10, 15, 18.5, 27

1675 x 685

522

2.04

1.53

10, 15, 18.5, 24

1625 x 760

659

2.43

1.82

10, 18.5

1830 x 760

750

2.78

2.08

10, 18.5

2135 x 760

900

3.28

2.46

10, 18.5

20

HeatSpeed Cylinders
Quick recovery cylinders and calorifiers for commercial and industrial uses
The Heatspeed calorifiers have very high efficiency

Although in many situations the advantages inherent in a

heat exchange elements and are designed with energy

semi-storage high output calorifier will be paramount, there

conservation very much in mind. They have a smaller

will be situations in which very large storage capability is a

storage capacity than conventional calorifiers yet can offer

necessity. For instance, where large quantities of water are

larger volumes of hot water per hour. Heatspeed calorifiers

required on an intermittent basis and are called off in a very

are only available in the vertical format.

short period of time, typically 20 minutes or less, i.e. at the
end of a factory shift or in certain types of process work. In

Their main features are:

these circumstances we recommend a Commercial pattern

• Considerable saving in floor space.

calorifier with a 2, 3 or 4 hour recovery heat exchanger.

• Lower standing losses because less water is being
stored.

Your regional Gledhill manufacturing centre will be able to

• Greater boiler efficiency because the heat exchanger

assist in the sizing and specification of these cylinders to

can absorb more of the boiler output thus reducing

ensure that the hot water demands are satisfied.

cycling with its attendant efficiency losses, particularly in
the summer months.
• Reduction in capital costs.
The Heatspeed range of calorifiers is designed to recover
their contents from 10°C to 65°C three times in an hour with
primary water at 82°C flow temperatures under pumped
circulation.
Compared to the Commercial range of cylinders are
designed to recover their contents from 10°C to 65°C in one
or two hours with primary water flow at 82°C under gravity
circulation and 1/2 or 1 hour under pumped conditions.

HeatSpeed Specifications
Storage Capacity
Nominal (litres)

Actual (mm)

Continuous secondary
flow rate @55°C
(litres/hr)

HS66

320

300

1788

20

Model

Recovery time
(minutes)

HS83

385

377

2156

20

HS103

468

450

2556

20

HS104

473

450

2556

20

HS121

570

550

3125

20

HS146

680

664

3841

20

HS168

800

764

4543

20

HS197

910

896

5106

20

HS217

1000

986

5675

20

21

Special Order ...
Installer Name:
Company:
Phone No:

Tapping Positions

Merchant:
Phone No:

Don’t forget Shower Take-Offs, Drain
Connections and Secondary Returns can be
factory fitted!

Size:

15, 22, 28 compression with nut & olive or
½” up to 2” screwed connections

CYLINDER

COMBINATION TANK

Please show size and position of bosses
and floor to centre measurements if critical.

PLAN VIEW

Additional Details

WORKING HEAD

TYPE

INSULATION

10m

Direct

35mm EnviroFoam

15m

Indirect

60mm Flexilag

25m

Automatic

Steelace

31m

Solar Sunspeed

Plain

22

Fax to your local depot for immediate attention, full contact details available from www.gledhill.net

Special Order ...
Installer Name:
Company:
Phone No:

Tapping Positions

Merchant:
Phone No:

Don’t forget Shower Take-Offs, Drain
Connections and Secondary Returns can be
factory fitted!

Size:

15, 22, 28 compression with nut & olive or
½” up to 2” screwed connections

SEAGULL

COMBINATION TANK

Please show size and position of bosses
and floor to centre measurements if critical.

PLAN VIEW

Additional Details

TYPE

TYPE

Material

Direct

Gravity Fed

Copper

Indirect

Electric Thermal Store

Steelace

Pre-Plumbed

Automatic

Central Plant

23

Fax to your local depot for immediate attention, full contact details available from www.gledhill.net

UK Super Depot Infrastructure
Blackpool
Head Office and
Stainless Steel Manufacturing Site

Nottingham
Telephone: 01773 580684
Fax: 01773 581129

Blackburn
Telephone: 01254 693844
Fax: 01254 673615

Oldbury
Telephone: 01384 636245
Fax: 01384 413700

Bristol
Telephone: 01179 820814
Fax: 01179 820821

Paignton
Telephone: 01803 557470
Fax: 01803 559213

Inverkeithing
Telephone: 01383 414133
Fax: 01383 413123

Southampton
Telephone: 01329 846601
Fax: 01329 845881

Luton
Telephone: 01582 728253
Fax: 01582 318976

For technical advice
please call
01253 474584

Maidstone
Telephone: 01622 714770
Fax: 01622 882286

SUPPLIERS TO THE MERCHANT TRADE FOR OVER 40 YEARS

Gledhill Building Products Limited
Sycamore Estate, Squires Gate, Blackpool FY4 3RL Tel: 01253 474550 Fax: 01253 474551 sales@gledhill.net
Gledhill Building Products produce cylinders for use with a wide range of heat sources including;

Gas and oil boilers
Ground source heat pumps

Electricity
Solar energy

Air source heat pumps
Wood burning stoves

Further information on Gledhill products can be found on the internet at www.gledhill.net

“Only the best
is acceptable”

To protect our environment,
we use copper a totally
recyclable metal, which
never becomes waste.

FM 02057

Due to a programme of continuous improvement Gledhill Building Products reserve the right to modify products without prior notice.
It is advisable to check the product technical detail by using the latest design and installation manuals available from our technical support team or on our website.
It is an offence to copy or adapt this document without consent of the owner.

Spec 115/06 02/16



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