YGHP HIU filter ‘Thermalee’ is small, smart and simple.
It fits onto vertical and horizontal pipework at up to a 45-degree orientation and is simple to install with quality valves.
Engineered Brass Construction – Thermalee Filter is constructed from a high strength engineering grade brass, suitable for heating and cooling system applications. Every filter is tested on the production line to ensure there are no leaks. The brass components are nickel-plated to increase durability and resistance, meaning the filter is compatible with a range of glycols and additives used in central heating systems.
Low pressure loss – The Thermalee Filter has been designed to ensure there is a minimal pressure head loss, whilst also maintaining a high collection efficiency. The internal HPS, magnet assembly and area of low flow have all been engineered to allow the filter to capture a range of system contaminates, whilst ensuring this does not impact the rest of the heating system.
High-quality components – The Thermalee Filter utilises a range of high-quality component parts that ensure the filter offers the best possible performance. The magnet is made using a premium grade of neodymium, enabling a high-efficiency capture rate, combined with the stainless-steel hydronic particle separator, which enables the continued and consistent filtration of a range of system contaminates.
Inhibited Glycol Solutions
Fernox Chemical Range / System Additives
Maximum Percentage of Glycol
Maximum Working Pressure
Maximum Working Temperature
Up to 100% of system contaminates
Contaminated water enters the filter via the manifold, carrying a variety of system debris and particulate matter held in suspension. This debris, including ferrous impurities such as Magnetite, move through the manifold and into the main body of the filter.
Water is forced down towards the bottom of the filter due to the engineered flow characteristics created within the filter by the Hydronic Particle Separator (HPS). The HPS helps to disrupt any dirt particles held in suspension by the water, as well as direct these particles towards an engineered area of low flow at the base of the filter.
The dynamic flow of the water within the filter also allows ferrous impurities to be captured by the high-powered magnet assembly.
To exit the filter, water must pass over the magnet sheath and around the HPS, then out of the manifold. In this way, system debris has difficulty escaping the unit, and is either trapped in the area of low flow, or captured by the powerful magnet, meaning clean water exits the filter.
Any dirt collected within the filter can then be discharged by removing the magnet from the sheath and opening the drain valve. This procedure is shown in the cleaning guide and does not require system shutdown or for the filter to be disassembled.
Filter Body – Forged brass (EN 12165-CW617N-DW), Nickel plated
Manifold – Forged brass (EN 12165-CW617N-DW), Nickel plated
Magnet – Neodymium
Hydronic Particle Separator – Stainless Steel
Circlip – Stainless Steel
Drain Valve – Nickel plated brass
Isolation Valves (if applicable) – Nickel plated brass
Seals & Washers – EPDM