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Water Cylinders

You can find a vented or unvented cylinder for the particular needs of a home or commercial property here. An unvented hot water cylinder has the ability to heat hot water for sinks and showers when space is limited, heating water directly from the pipes instead of needing a cold water storage tank. A vented hot water cylinder is fairly easy to install when coupled with a cold water tank.

Related products
The Vaillant ecoTEC Pro 30 Combi Boiler uses a natural gas fuel supply and is perfect for 2-4 bedroom properties with a single bathroom, and an ensuite and is typically popular for installation in small to medium sized houses, flats and bungalows. Vaillant's ecoTEC Pro range of combi boilers offers some of the best value boilers on the market, offering renowned quality at the best possible price. The Pro 30 combi boiler is also fully compliant with the latest ErP regulations, so you can rest assured that you are getting one of the most efficient and reliable boilers around. The Vaillant Pro 30 combi boiler is able to supply the central heating and hot water by heating the mains water supply, negating the need for a hot water cylinder or cold water feed tank, thus saving space and installation time, and providing hot water on demand.
Boiler Type
Combi
ERP Rating
A
ERP Efficiency
93%
Depth
338 mm
Height
720 mm
Width
440 mm
Maximum Horizontal Flue 100mm
12 m
Maximum Horizontal Flue 125mm
39 m
Maximum Vertical Flue 100mm
12 m
Maximum Vertical Flue 125mm
41 m
External or Internal
Internal
DHW Output
30 kW
DHW Response 1m from Tap
5 Secs
DHW Flow Rate at 35 Degree Rise
12.3 L
DHW Output Min and Max
30 kW
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.9129
CH Condensing Max Output
24.7 kW
Heat Output
30 kW
Fuel Type
Natural Gas
Includes
Boiler Only
Noise Level
49 dB
Nox Class
5
Solar Compatible
Yes
Type
Boiler
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Brand Name
Vaillant
Made To Order
N
Range Description
ecoTEC
Manufacturer Model No
10016538
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£1215.60
each (Inc. VAT)
The Energy Regular is a gas boiler from Glow-worm, which has been designed with a variety of features and benefits in mind to create a highly reliable and long lasting boiler. The Regular will heat the central heating system directly, as well as provide hot water for a seperate cylinder, meaning a hot water storage cylinder will be needed, which is fed by a cold water storage cistern located in the loft. This may not be the choice for small homes but it is ideal for a like for like replacement of a regular boiler. This unit is a highly efficient A rated boiler with a rating of 89.3%. This boiler has an output of 12kW making it perfect for homes that do not have a high demand for hot water. This boiler is compact in size helping to save space in the home. The bright, modern LCD display provides clear and obvious status updates for both customer and installer. The Energy comes with the choice of a top or rear mounted flue giving it ultimate flexibility when you're choosing an installation site. Utilising an industry standard DIN layout makes boiler swaps quick and painless. The large waterways on the aluminium heat exchanger also makes it the perfect retrofit solution.
Boiler Type
Heat Only
ERP Rating
A
ERP Efficiency
92%
Depth
280 mm
Height
700 mm
Width
375 mm
Maximum Horizontal Flue 100mm
10 m
Maximum Horizontal Flue 125mm
25 m
Maximum Vertical Flue 100mm
10 m
Maximum Vertical Flue 125mm
25 m
DHW Flow Rate at 35 Degree Rise
10.4
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
91%
CH Condensing Max Output
12.8 kW
Heat Output
12 kW
Noise Level
47 dB
Nox Class
5
Solar Compatible
No
Years Guaranteed
7
Registered with the Energy Savings Trust
Yes
Brand Name
Glow-Worm
Made To Order
N
Range Description
Energy Range
Manufacturer Model No
10015660
Show More
£824.40
each (Inc. VAT)
The Worcester 18i System Boiler is the perfect choice for small properties such as flats and bungalows. Offering compact dimensions, a low lift weight and A-Rated efficiency, the 18i has the potential to save money on annual heating bills and offer reliability through even the coldest months. The 18i System Boiler will require a hot water cylinder in order to deliver hot water to the property. The high efficiency of the 18i boiler can cut heating and hot water bills by 15-20% annually (When replacing an older, G-Rated boiler) and is up to 30% cheaper to run. These savings mean that over the years the boiler will essentially pay for itself, as the quality of Worcester boilers means that you won't need to replace it for many years. Easy to use, the Worcester 18i includes simple boiler controls to ensure your boiler is set at the correct temperature for the customer's need, while also providing operational information and diagnostics to help with maintenance.
ERP Efficiency
0.93
Boiler Type
System
ERP Rating
A
Depth
330 mm
Height
700 mm
Width
400 mm
DHW Output Min and Max
< 24
SEDBUK SAP 2009 Rating
A
CH Condensing Max Output
18 kw
Heat Output
18 kW
Years Guaranteed
5
Brand Name
Worcester Bosch
Made To Order
N
Manufacturer Model No
7733600008
Show More
£1047.60
each (Inc. VAT)
The Worcester 24i System Boiler is the perfect choice for small properties such as flats and bungalows. Offering compact dimensions, a low lift weight and A-Rated efficiency, the 24i has the potential to save money on annual heating bills and offer reliability through even the coldest months. The 24i System Boiler will require a hot water cylinder in order to deliver hot water to the property. The high efficiency of the 24i boiler can cut heating and hot water bills by 15-20% annually (When replacing an older, G-Rated boiler) and is up to 30% cheaper to run. These savings mean that over the years the boiler will essentially pay for itself, as the quality of Worcester boilers means that you won't need to replace it for many years. Easy to use, the Worcester 24i includes simple boiler controls to ensure your boiler is set at the correct temperature for the customer's need, while also providing operational information and diagnostics to help with maintenance.
Boiler Type
System
ERP Rating
A
ERP Efficiency
0.93
Depth
330 mm
Height
710 mm
Width
400 mm
Maximum Horizontal Flue 100mm
6.4 m
Maximum Horizontal Flue 125mm
13 m
Maximum Vertical Flue 100mm
6.4 m
Maximum Vertical Flue 125mm
15 m
SEDBUK SAP 2009 Rating
A
CH Condensing Max Output
24.6 kW
Heat Output
24 kW
Includes
Boiler Only
Noise Level
50 dBA
Nox Class
5
Solar Compatible
Yes
Years Guaranteed
5
Brand Name
Worcester Bosch
Made To Order
N
Range Description
Greenstar i System
Manufacturer Model No
7733600006
Show More
£1114.80
each (Inc. VAT)
Vaillant ecoTec Pro 30kW Combi Gas Boiler ERP 10016538
Vaillant ecoTec Pro 30kW Combi Gas Boiler ERP 10016538
The Vaillant ecoTEC Pro 30 Combi Boiler uses a natural gas fuel supply and is perfect for 2-4 bedroom properties with a single bathroom, and an ensuite and is typically popular for installation in small to medium sized houses, flats and bungalows. Vaillant's ecoTEC Pro range of combi boilers offers some of the best value boilers on the market, offering renowned quality at the best possible price. The Pro 30 combi boiler is also fully compliant with the latest ErP regulations, so you can rest assured that you are getting one of the most efficient and reliable boilers around. The Vaillant Pro 30 combi boiler is able to supply the central heating and hot water by heating the mains water supply, negating the need for a hot water cylinder or cold water feed tank, thus saving space and installation time, and providing hot water on demand.
Show More
£1215.60 each (Inc. VAT)
Quick view
Glow-worm Energy 12R Open Vent Boiler Erp
Glow-worm Energy 12R Open Vent Boiler Erp
The Energy Regular is a gas boiler from Glow-worm, which has been designed with a variety of features and benefits in mind to create a highly reliable and long lasting boiler. The Regular will heat the central heating system directly, as well as provide hot water for a seperate cylinder, meaning a hot water storage cylinder will be needed, which is fed by a cold water storage cistern located in the loft. This may not be the choice for small homes but it is ideal for a like for like replacement of a regular boiler. This unit is a highly efficient A rated boiler with a rating of 89.3%. This boiler has an output of 12kW making it perfect for homes that do not have a high demand for hot water. This boiler is compact in size helping to save space in the home. The bright, modern LCD display provides clear and obvious status updates for both customer and installer. The Energy comes with the choice of a top or rear mounted flue giving it ultimate flexibility when you're choosing an installation site. Utilising an industry standard DIN layout makes boiler swaps quick and painless. The large waterways on the aluminium heat exchanger also makes it the perfect retrofit solution.
Show More
£824.40 each (Inc. VAT)
Quick view
Worcester Greenstar 18I System Gas Boiler ERP 7733600008
Worcester Greenstar 18I System Gas Boiler ERP 7733600008
The Worcester 18i System Boiler is the perfect choice for small properties such as flats and bungalows. Offering compact dimensions, a low lift weight and A-Rated efficiency, the 18i has the potential to save money on annual heating bills and offer reliability through even the coldest months. The 18i System Boiler will require a hot water cylinder in order to deliver hot water to the property. The high efficiency of the 18i boiler can cut heating and hot water bills by 15-20% annually (When replacing an older, G-Rated boiler) and is up to 30% cheaper to run. These savings mean that over the years the boiler will essentially pay for itself, as the quality of Worcester boilers means that you won't need to replace it for many years. Easy to use, the Worcester 18i includes simple boiler controls to ensure your boiler is set at the correct temperature for the customer's need, while also providing operational information and diagnostics to help with maintenance.
Show More
£1047.60 each (Inc. VAT)
Quick view
Worcester Greenstar 24kW System Gas Boiler ERP 7733600006
Worcester Greenstar 24kW System Gas Boiler ERP 7733600006
The Worcester 24i System Boiler is the perfect choice for small properties such as flats and bungalows. Offering compact dimensions, a low lift weight and A-Rated efficiency, the 24i has the potential to save money on annual heating bills and offer reliability through even the coldest months. The 24i System Boiler will require a hot water cylinder in order to deliver hot water to the property. The high efficiency of the 24i boiler can cut heating and hot water bills by 15-20% annually (When replacing an older, G-Rated boiler) and is up to 30% cheaper to run. These savings mean that over the years the boiler will essentially pay for itself, as the quality of Worcester boilers means that you won't need to replace it for many years. Easy to use, the Worcester 24i includes simple boiler controls to ensure your boiler is set at the correct temperature for the customer's need, while also providing operational information and diagnostics to help with maintenance.
Show More
£1114.80 each (Inc. VAT)
Quick view