Water Storage
There are two main types of water storage cylinder: direct and indirect.
Direct cylinders are a standard hot water tank found in most homes, with water sourced from a cold water tank usually in the loft or roof space. This type of cylinder is used when water for washing from the cylinder circulates directly through the boiler. There is no heating coil, so the water is heated directly by the immersion heaters located inside the cylinder – often meaning the recovery time is longer than with an indirect cylinder.
Indirect cylinders are used where water that’s used to heat the boiler and radiators is used to heat the hot water in the cylinder, but is kept totally separate from the water used for washing in the cylinder. Water from the boiler and radiators continuously re-circulates through the coil in the cylinder to heat the water, but never comes into direct contact with the water used for washing. These cylinders normally operate at around 80°C.
HeatWave 4 Litre Heating Expansion Vessel
£19.33
£16.11
75 Available for Delivery
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ThermoWave 24 Litre Unvented Potable Expansion Vessel c/w Bracket
£30.54
£25.45
128 Available for Delivery
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Evolve Expansion Vessel Kit
£23.62
£19.68
2075 Available for Delivery
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BiWorld Expansion Vessel Wall Mounting Kit 2 - 25 Litre
£4.54
£3.78
923 Available for Delivery
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On Sale
Honeywell Home 22mm Motorised 2 Port Zone Valve
Save £2.95
£80.95
£78.00
£65.00
1003 Available for Delivery
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BiWorld 22 mm 2 Port Motorised Zone Valve
£36.60
£30.50
177 Available for Delivery
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4.1/2" Plastic Float
£1.34
£1.12
119 Available for Delivery
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Polytank 42 Gallon Coffin Tank - 46-19-19
£154.15
£128.46
27 Available for Delivery
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Altecnic 3/4" Male x Female 10Bar 1000mm Flexible Hose
£7.99
£6.66
23 Available for Delivery
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Polytank 100 Gallon Coffin Tank - 64-26-23
£327.04
£272.53
25 Available for Delivery
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Altecnic 0.16L Pneumatic Shock Arrestor
£19.74
£16.45
404 Available for Delivery
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CLEARANCE - Imera Expansion vessel (Cold) 5 Litre Potable
£16.50
£13.75
45 Available for Delivery
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Ideal Pro 300L Indirect Horizontal Unvented Cylinder
£872.82
£727.35
34 Available for Delivery
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HeatWave 18 Litre Heating Expansion Vessel
£23.17
£19.31
172 Available for Delivery
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27" Incoloy Immersion Heater
£24.16
£20.13
76 Available for Delivery
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Ideal Pro 210L Indirect Horizontal Unvented Cylinder
£760.92
£634.10
24 Available for Delivery
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Polytank 70 Gallon Coffin Tank - 64-24-19
£262.07
£218.39
24 Available for Delivery
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Ideal 210 L System Ready Unvented Cylinder
£901.10
£750.92
43 Available for Delivery
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Evolve 6 Bar Pressure Safety Valve
£6.96
£5.80
264 Available for Delivery
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GBF Part 1 1/2" High Pressure Ballvalve
£4.16
£3.47
4710 Available for Delivery
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Unvented Cold Water Group Set
£43.64
£36.37
174 Available for Delivery
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Polytank 50 Gallon Coffin Tank - 36-24-23
£160.76
£133.97
43 Available for Delivery
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Ideal 250 L System Ready Unvented Cylinder
£981.07
£817.56
27 Available for Delivery
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HeatWave 8 Litre Heating Expansion Vessel
£20.87
£17.39
73 Available for Delivery
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Altecnic 2L Potable Water Vessel
£21.92
£18.27
50 Available for Delivery
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Compression Adaptor 22 mm X 1" Male Iron Straight
£2.39
£1.99
524 Available for Delivery
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On Sale
Honeywell Home 22mm Motorised 2 Port Zone Valve - 2 Pack
£129.60
£108.00
914 Available for Delivery
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Ideal Pro 300 L Indirect Unvented Cylinder
£756.50
£630.42
29 Available for Delivery
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Polytank 50 Gallon Coffin Tank - 46-24-19
£160.76
£133.97
45 Available for Delivery
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ThermoWave 18 Litre Unvented Potable Expansion Vessel c/w Bracket
£30.96
£25.80
173 Available for Delivery
Select your local store for Stock Availability.
