Expansion Vessels & Accessories
As the name implies Unvented Cylinder Systems have no vent pipes, and so when heating water have to provide room for its expansion. This can be accomplished either by accommodating it in an external expansion vessel or, in the case of bubble-top units, an internal air bubble within the unit which is generated when the system is commissioned.
In this section Unvented Components Europe have a large selection of discount external expansion vessels in a huge selection of sizes and from all the major manufacturers such as Zilmet, Flamco, Reliance Water, Vaillant and Varem, all designed to contain the expanding heated water in a hot water system, which can be sited either directly on a unit or, if required, remotely sited with the inlet control group. These units are manufactured from copper, glass-lined steel or stainless steel.
We also have expansion vessels available for combi storage units. This type of system incorporates the benefits, features and controls associated with unvented systems but has a smaller tank and therefore more limited storage capacity for hot water.
1–12 of 251 items
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1 Meter Expansion Vessel Hose – Alternative to: RM Cylinders
EXCL. TAX £17.81 INCL. TAX £21.37 Add to cart1 Meter Length – Expansion Vessel Hose 3/4″ M x F
EXCL. TAX £18.02 INCL. TAX £21.62 Add to cart2 x Vaillant – Ecotec Expansion Vessel 181051 (All Models)
EXCL. TAX £26.99 INCL. TAX £32.39 Out of StockAdvance Appliances – 2 Litre Potable Expansion Vessel AA001
EXCL. TAX £27.17 INCL. TAX £32.61 Add to cartAlbion – Universal Expansion Vessel Bracket for 2 Litre to 25 Litre EXPVBRKALTS
EXCL. TAX £18.60 INCL. TAX £22.32 Add to cartAltecnic – 15mm Remote Filling Loop Hose & Guage ALT-ST0035
EXCL. TAX £16.66 INCL. TAX £19.99 Add to cartAltecnic – ERES 12 Litre Heating Expansion Vessel & Bracket ER-12LTVESS
EXCL. TAX £27.76 INCL. TAX £33.31 Add to cartAltecnic – ERES 12 Litre Heating Expansion Vessel & Sealed System Kit ER-12LTVESS
EXCL. TAX £47.47 INCL. TAX £56.96 Add to cartAltecnic – ERES 12 Litre Heating Expansion Vessel ER-12LTVESS
EXCL. TAX £25.40 INCL. TAX £30.48 Add to cartAltecnic – ERES 12 Litre Potable Expansion Vessel & Bracket ER-PV12
EXCL. TAX £32.36 INCL. TAX £38.84 Add to cartAltecnic – ERES 12 Litre Potable Expansion Vessel & Sealed System ER-PV12
EXCL. TAX £49.45 INCL. TAX £59.34 Add to cartAltecnic – ERES 12 Litre Potable Expansion Vessel ER-PV12
EXCL. TAX £29.28 INCL. TAX £35.13 Add to cart