This 8-litre HeatWave heating expansion vessel connects directly to your hydronic heating system. Specifically, it provides a highly reliable and high-quality solution for safely managing thermal expansion within the network. Furthermore, thanks to its incorporated hex nut system connection, you significantly speed up the installation process and ensure a secure, straightforward fit right out of the box.
Therefore, this expansion tank works perfectly for standard residential and light commercial heating systems. Additionally, it easily handles demanding environments, as the exterior features a tough two-part polyurethane, epoxy-primed paint finish designed to withstand the harshest indoor and outdoor climates.
The vessel features a robust, structurally tested construction built to the stringent standards of Global Water Solutions LTD. Moreover, the air chamber is securely sealed with a premium brass air valve and an o-ring sealed air cap. As a result, this durable build makes it fully reliable for providing many years of leak-free and completely service-free life.
Key Features & Benefits:
Easy Installation: The tank’s design allows it to be conveniently supported directly by the system piping or mounted securely using a wall mounting bracket. Consequently, you achieve highly flexible installation options to suit your boiler room layout.
Leak-Free Air Chamber: The system includes a brass air valve and an o-ring sealed air cap. For example, when maintaining system pressure over long periods, this tight seal effectively prevents air loss and eliminates the need for constant maintenance.
Extreme Weather Resistance: The outer shell is coated with a two-part polyurethane, epoxy-primed paint finish. Importantly, it completely protects the body from degradation, making it highly resilient in both indoor and outdoor applications.
Proven Reliability: Every HeatWave tank is quality tested at several stages on the production line. Ultimately, this rigorous testing guarantees the structural integrity of every single unit before it is dispatched for installation.
Technical Specifications:
Manufacturer: Global Water Solutions LTD
Product Type: Heating Expansion Vessel
Capacity: 8 Litres
MPN: HWB-8LX
GTIN: 5055916801505
Gross Weight: 2.35 kg (including packaging)
Connection Type: Incorporated hex nut system connection
Air Valve: Brass with o-ring sealed cap
Finish: Two-part polyurethane, epoxy primed paint
Mounting: Supported by system piping or wall mounting bracket



