Expansion Vessels
Expansion vessels (also known as expansion tanks) are installed on sealed systems to allow for the 4% expansion in water as the system heats up and therefore protect from excessive pressure. The tank is partially filled with air which absorbs excess water pressure caused by thermal expansion. Here at Mr Central Heating we stock the high quality Imera expansion vessels, red heating vessels suitable for sealed heating systems, blue potable vessels for use with unvented water heaters, a small white multifunction vessel for heating systems or domestic hot water and a 162ml shock arrestor to prevent water hammer. We also have a complete range of accessories to assist with installation.
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ThermoWave 18 Litre Unvented Potable Expansion Vessel c/w Bracket
£30.96
£25.80
80 Available for Delivery
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ThermoWave 24 Litre Unvented Potable Expansion Vessel c/w Bracket
£30.54
£25.45
57 Available for Delivery
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Flow-Thru 80 L Accumulator Tank
£382.68
£318.90
Available for back-ordered delivery
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Flow-Thru 170 L Accumulator Tank
£617.22
£514.35
Available for back-ordered delivery
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Challenger 250 L Accumulator Tank
£558.00
£465.00
23 Available for Delivery
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Challenger 200 L Accumulator Tank
£492.84
£410.70
21 Available for Delivery
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Challenger 300 L Accumulator Tank
£595.62
£496.35
24 Available for Delivery
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Challenger 450 L Accumulator Tank
£943.92
£786.60
15 Available for Delivery
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SuperFlow INT 500L Accumulator Tank
£1,669.97
£1,391.64
Available for back-ordered delivery
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SuperFlow INT 750L Accumulator Tank
£1,866.44
£1,555.37
1 Available for Delivery
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BiWorld Expansion Vessel Wall Mounting Kit 2 - 25 Litre
£4.54
£3.78
1651 Available for Delivery
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BiWorld Expansion Vessel Wall Mounting Kit 35 - 50 Litre
£5.08
£4.23
83 Available for Delivery
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Evolve Expansion Vessel Kit
£23.62
£19.68
914 Available for Delivery
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ThermoWave White 2 L Potable Multifunction Expansion Vessel (1/2" Thread)
£20.81
£17.34
66 Available for Delivery
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ThermoWave White 2 L Potable Multifunction Expansion Vessel (3/4" Thread)
£20.81
£17.34
136 Available for Delivery
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ThermoWave 12 Litre Potable Expansion Vessel
£28.97
£24.14
127 Available for Delivery
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ThermoWave 18 Litre Potable Expansion Vessel
£31.78
£26.48
107 Available for Delivery
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ThermoWave 24 Litre Potable Expansion Vessel
£34.60
£28.83
89 Available for Delivery
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On Sale

CLEARANCE - Imera Expansion vessel (Cold) 5 Litre Potable
£16.50
£13.75
117 Available for Delivery
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HeatWave 4 Litre Heating Expansion Vessel
£19.33
£16.11
63 Available for Delivery
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HeatWave 8 Litre Heating Expansion Vessel
£20.87
£17.39
144 Available for Delivery
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HeatWave 12 Litre Heating Expansion Vessel
£22.25
£18.54
70 Available for Delivery
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HeatWave 18 Litre Heating Expansion Vessel
£23.17
£19.31
Available for back-ordered delivery
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HeatWave 24 Litre Heating Expansion Vessel
£28.74
£23.95
108 Available for Delivery
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HeatWave 35 Litre Heating Expansion Vessel
£41.70
£34.75
36 Available for Delivery
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HeatWave 60 Litre Heating Expansion Vessel
£64.90
£54.08
35 Available for Delivery
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On Sale

CLEARANCE - Imera Expansion vessel (Heating) 5 Litre
£15.00
£12.50
332 Available for Delivery
Select your local store for Stock Availability.

BiWorld 1/2" Mechanical Type Shock Arrestor
£14.68
£12.23
201 Available for Delivery
Select your local store for Stock Availability.

HydroGuard 0.16 L Stainless Steel Shock Arrestor
£19.26
£16.05
566 Available for Delivery
Select your local store for Stock Availability.

ThermoWave 12 Litre Unvented Potable Expansion Vessel c/w Bracket
£30.96
£25.80
95 Available for Delivery
Select your local store for Stock Availability.