Economy 7 Hot Water Cylinders

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Economy 7 Hot water Cylinders by Gledhill

Domestic copper hot water cylinders for use with off-peak electric tarriff

Index Page > Hot Water Cylinders > Economy 7 Hot water Cylinders

Direct and Indirect Economy 7 Hot Water Cylinders

Economy 7 hot water cylinder by Gledhill

ECONOMY 7 Copper hot water tanks and cylinders

An Economy 7 cylinder is designed to exploit an 'off-peak' electricity supply typically available throughout the night.

A feature of an E7 cylinder or tank is the addition of a second immersion heater port (unlike a standard direct cylinder that only has one).

The lower of the two elements is typically connected to the economy supply/tariff, the upper heater is usually used as a boost element and operated manually when demand for hot water is high. Our cylinders are supplied with the two immersion heater ports (the bit you screw the heater into) but immersion heaters are sold separately. Please enquire.

PLEASE NOTE: Stated cylinder sizes do not include the thickness of the insulation that will be added (a nominal 50mm). Please remember to add 100mm (50mm either side) to the stated dimension to appreciate finished size.

ECONOMY 7 DIRECT copper cylinder prices

Economy 7 DIRECT hot water cylinder

Economy 7 DIRECT

      ex VAT inc VAT  
Size (H x Dia)              
1050 x 400 Direct                    248.59 298.31  
900 x 450 Direct                     248.59 298.31  
1050 x 450 Direct                    315.16 378.20  
1200 x 450 Direct                    334.16 401.00  
1500 x 450 Direct                    386.48 463.77  


 ECONOMY 7 INDIRECT copper cylinder prices

Economy 7 INDIRECT hot water cylinder

Economy 7 INDIRECT

      ex VAT inc VAT  
Size (H x Dia)              
1050 x 400 Indirect                  281.86 338.23  
900 x 450 Indirect                   272.36 326.83  
1050 x 450 Indirect                  331.19 397.43  
1200 x 450 Indirect                  388.47 466.16  
1500 x 450 Indirect                  440.35 528.42  

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Additions and optional extras

Options available at additional cost include:


Compression fittings (instead of threaded bosses)



Shower take-off



Additional Tappings (pairs)



Secondary return



Immersion Heater (Incalloy) 3kW alloy coated (corrosion resistant)



Drain valve (drain cock) [threaded boss included on cylinder]



Hi recovery boiler coil (pumped) - indirect model only



Super Recovery coil (Pumped)



Additional immersion boss (already supplied with two)



Gravity boiler coil with 28mm connections

(Large bore for AGA, wood burner etc) - Indirect model only


(please add to stated price)

Positioning tappings to your specification does not normally attract a supplementary charge


When sizing a cylinder remember the stated dimensions do not include the thickness of insulation. You must add the thickness of insulation to the cylinder dimension to obtain the finished size. This is most important if the cylinder needs to pass through a doorway or access hatch. Make sure you have enough room to make connections and service immersion heaters.

Illustrations are for guidance only and should not be interpreted as an exact representation.



Note: Cylinder illustrations are for guidance only. Connections may be positioned to customer requirements (please refer to Designing a Cylinder section) and those shown should not be regarded as 'standard'.

Illustrations show a shower take off/secondary return side mounted at high level. This is not a standard feature and as with a drain, boiler control stat/sensor pocket or any other feature should be stated as a requirement if indeed required.

Economy 7 Hot Water Cylinders


Some parts of Scotland, Wales, the West Country and Islands around the UK may require special delivery arrangements, for which there may be additional charges. Please don't hesitate to enquire.



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