Unvented Components Europe

We’re leading online stockists of components for plumbing and heating systems. Based in Oswestry in Shropshire, we stock thousands of components such as cylinder spaces, pressure and temperature relief valves, immersion heaters and expansion vessels. Take a look through our online catalogue or call us to discuss your requirements.

We ship to the UK and 34 other countries worldwide and you’ll find testimonials and reviews from our satisfied customers on our website. We can have your components with you the next day of you order before half past three if it’s an emergency.

Unvented Cylinder Spares


Unvented Cylinder Spares

If you need a spare unvented hot water cylinder then check our website or give us a call today. We have one of the biggest selections of plumbing and heating components anywhere in the UK. We offer fast delivery anywhere in the UK and beyond and if you need technical advice on finding the right cylinder we have engineers on hand to speak to.

Our selection on unvented cylinders includes options from leading manufacturers like Vaillant, ACV, Allbrite, Calorex, Santon, Potterton, RM Cylinders, and Gledhill.

Pressure and Temperature Relief Valves


Pressure and Temperature Relief Valves

Pressure and temperature relief valves are an important safety feature for your heating system. They protect against excess pressure and heat within your system could potentially cause explosions and endanger your home and all occupants. That’s why we stock a wide range of valves for installation to keep your system safe.

The valves fit onto the upper section of your hot water cylinder. At any point that the pressure in your system or the temperature reaches dangerous levels the valves will open to allow them to escape.

Immersion Heaters


Immersion Heaters

We stock a huge range of immersion heater parts and components for use in hot water cylinders. Our stock includes immersion heater spanners, O-rings, heater elements, back nuts and thermostats. We only have parts made by leading manufacturers such as Albion, Gledhill, Heatrae Sadia, Thermco and Vaillant.

Check out our full selection of parts on our online catalogue or talk to one of our technical team who are ready and waiting to help you.

Expansion Vessels and Accessories


Expansion Vessels and Accessories

If you need spare expansion vessel or accessories like brackets, sealing systems, and vessel hoses then get in touch with us. We’ll have your expansion vessel on its way to you the same day as your order.

We stock vessels made by leading international manufacturers such as Zilmet, Flamco, Reliance and Vaillant. The vessels can either be positioned within the inlet control or placed on a unit. We have copper, glass-lined or stainless steel vessels in stock and options specifically for potable water if required.

Support resources

Call Applegate +44 (0)345 600 7177 AS