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.
Read more
HeatWave 4 Litre Heating Expansion Vessel
£19.33
£16.11
75 Available for Delivery
Select your local store for Stock Availability.
ThermoWave 24 Litre Unvented Potable Expansion Vessel c/w Bracket
£30.54
£25.45
128 Available for Delivery
Select your local store for Stock Availability.
Evolve Expansion Vessel Kit
£23.62
£19.68
2075 Available for Delivery
Select your local store for Stock Availability.
BiWorld Expansion Vessel Wall Mounting Kit 2 - 25 Litre
£4.54
£3.78
923 Available for Delivery
Select your local store for Stock Availability.
Altecnic 3/4" Male x Female 10Bar 1000mm Flexible Hose
£7.99
£6.66
23 Available for Delivery
Select your local store for Stock Availability.
Altecnic 0.16L Pneumatic Shock Arrestor
£19.74
£16.45
404 Available for Delivery
Select your local store for Stock Availability.
CLEARANCE - Imera Expansion vessel (Cold) 5 Litre Potable
£16.50
£13.75
45 Available for Delivery
Select your local store for Stock Availability.
HeatWave 18 Litre Heating Expansion Vessel
£23.17
£19.31
172 Available for Delivery
Select your local store for Stock Availability.
HeatWave 8 Litre Heating Expansion Vessel
£20.87
£17.39
73 Available for Delivery
Select your local store for Stock Availability.
Altecnic 2L Potable Water Vessel
£21.92
£18.27
50 Available for Delivery
Select your local store for Stock Availability.
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.
Altecnic Eres 18L Heating Vessel C/W Bracket & Strap
£32.78
£27.32
117 Available for Delivery
Select your local store for Stock Availability.
On Sale
Onyx 0.16LT Shock Arrestor
Save £0.89
£14.69
£13.80
£11.50
2081 Available for Delivery
Select your local store for Stock Availability.
Altecnic Eres 5L Potable Vessel C/W Bracket & Strap
£30.65
£25.54
31 Available for Delivery
Select your local store for Stock Availability.
Altecnic Eres 12L Heating Vessel C/W Bracket & Strap
£30.74
£25.62
104 Available for Delivery
Select your local store for Stock Availability.
BiWorld 1/2" Mechanical Type Shock Arrestor
£14.68
£12.23
Order now for delivery within 10 working days
1 Available for Delivery
Select your local store for Stock Availability.
HeatWave 24 Litre Heating Expansion Vessel
£28.74
£23.95
76 Available for Delivery
Select your local store for Stock Availability.
Altecnic Eres 12L Potable Vessel C/W Bracket & Strap
£35.68
£29.73
71 Available for Delivery
Select your local store for Stock Availability.
BiWorld Expansion Vessel Wall Mounting Kit 35 - 50 Litre
£5.08
£4.23
Available for back-ordered delivery
Select your local store for Stock Availability.
ThermoWave White 2 L Potable Multifunction Expansion Vessel (1/2" Thread)
£20.81
£17.34
163 Available for Delivery
Select your local store for Stock Availability.
HeatWave 12 Litre Heating Expansion Vessel
£22.25
£18.54
261 Available for Delivery
Select your local store for Stock Availability.
ThermoWave White 2 L Potable Multifunction Expansion Vessel (3/4" Thread)
£20.81
£17.34
70 Available for Delivery
Select your local store for Stock Availability.
ThermoWave 35 Litre Unvented Potable Expansion Vessel c/w Bracket
£58.51
£48.76
17 Available for Delivery
Select your local store for Stock Availability.
Altecnic Eres 35L Heating Vessel C/W Feet
£54.49
£45.41
20 Available for Delivery
Select your local store for Stock Availability.
HydroGuard 0.16 L Stainless Steel Shock Arrestor
£19.26
£16.05
346 Available for Delivery
Select your local store for Stock Availability.
Altecnic Eres 50L Potable Vessel C/W Feet
£110.18
£91.82
7 Available for Delivery
Select your local store for Stock Availability.
CLEARANCE - Imera Expansion vessel (Heating) 5 Litre
£15.00
£12.50
314 Available for Delivery
Select your local store for Stock Availability.
HeatWave 150 Litre Heating Expansion Vessel
£161.98
£134.98
Available for back-ordered delivery
Select your local store for Stock Availability.
ThermoWave 18 Litre Potable Expansion Vessel
£31.78
£26.48
74 Available for Delivery
Select your local store for Stock Availability.
Altecnic Eres 24L Heating Vessel C/W Bracket & Strap
£36.80
£30.67
62 Available for Delivery
Select your local store for Stock Availability.
