Navigate through our concise and informative HIU Info Page to understand the vital aspects of Heat Interface Units (HIU). Discover the working principles, explore the diverse types, and learn about the notable benefits of using HIUs. Gain insights into the various HIU manufacturers we collaborate with and delve into the comprehensive HIU services we expertly deliver at Add Detail HIU, including repair, installation, and maintenance.

Annual HIU service is crucial for maintaining your unit in top condition and ensuring it operates efficiently without wasting energy. Over time, parts may become faulty or settings can drift out of calibration, leading to unnecessary energy consumption. This happens when the heat network continues pumping heated water to your apartment’s HIU even when there’s…

HIU is still a niche equipment and most regular plumbers or gas engineers lack familiarity with how the unit operates. Employing HIU specialists company will provide you with an engineer who have in-depth knowledge of different types and brands of HIUs. This expertise ensures they can accurately diagnose and fix issues specific to your HIU…

Installing inline scale reducer on cold water pipe supply to HIU (heat interface unit) minimises scale build up, promotes energy efficiency and reduces risk of unexpected HIU breakdowns providing chance of achieving its maximum potential lifespan.    Scale buildup in a HIU, most of the time inside plate heat exchanger can act as an insulator,…

Testing water quality of HIU secondary heating system is crucial as it impacts both the efficiency and longevity of a heating system no matter if it is connected to the radiators or underfloor heating:    Preventing Corrosion: Poor water quality can lead to corrosion inside radiators and other components of the heating system. Corrosion can…

Smart room thermostats connected to the HIU offer a range of benefits that enhance both the convenience and efficiency of home heating:   Remote Control: Most smart thermostats can be controlled remotely via a smartphone app. This allows you to adjust your home’s temperature from anywhere, providing convenience and flexibility.   Energy Savings: Smart thermostats…

Installing a magnetic filter to a HIU secondary heating system provides several benefits:   Protection Against Sludge and Debris: The primary function of a magnetic filter is to capture iron oxide sludge and metallic debris. This sludge, if left unchecked, can cause blockages and reduce the efficiency of the heating system.   Increased Efficiency: By…

It’s important for a HIU specialist to explain to residents how HIU heating and hot water systems are controlled for several reasons: Optimal Use of the System: Understanding how to properly control the system enables residents to use it efficiently, ensuring they get the maximum benefit in terms of comfort and functionality.   Energy Efficiency:…

A dripping tap or poor plumbing in an apartment can indirectly affect a HIU in several ways:   Increased Demand on the HIU: Dripping hot water taps lead to a continuous, albeit small, demand for hot water. This can cause the HIU to cycle on more frequently than necessary, potentially reducing its efficiency and lifespan….

The importance of well-functioning radiators, properly working radiator valves, a balanced heating system, and regularly bled radiators is crucial for the efficiency of a HIU and the conservation of energy: Efficient Heat Distribution: Properly working radiators ensure efficient distribution of heat throughout the space. If radiators are malfunctioning, the HIU has to work harder to…

Manifold: Small leaks can occur at the joints or valves, often due to wear or improper installation. Air can get trapped in the manifold, leading to inefficiency in the system. Buildup of debris or scaling of hard water can block the manifold, affecting water flow. Actuator: Actuators can fail to open or close the valves…

Consistency of Service: Using the same service company ensures consistency in the quality of service. The technicians become familiar with your specific HIU and its history, leading to more efficient and accurate servicing. Maintenance History: Maintaining a service record provides a detailed history of repairs, servicing, and any issues encountered. This is valuable for troubleshooting…

Saving energy with your HIU is not only beneficial for reducing your energy bills, but it also helps in minimizing your environmental footprint. Here are some tips to help you save energy:   Regular Maintenance: Regular servicing ensures your HIU operates efficiently. A well-maintained HIU uses less energy.   Upgrade to a new Model: If…

Addressing HIU problems for heating and hot water promptly is crucial for several reasons:   Prevent Further Damage: Small issues can quickly escalate into larger, more costly problems if not addressed in time.   Maintain Efficiency: A malfunctioning HIU can operate less efficiently, leading to higher energy consumption and increased costs.   Avoid Complete Breakdown:…

The difference between a HIU connected to a radiator system and an underfloor heating system lies in the method of heat distribution and the specifics of the heating systems:   HIU with Radiator System:   Radiators: The HIU heats water that circulates through radiators installed in various rooms. Temperature Control: Each radiator can often be…

What is an HIU? Making it Simple An HIU, or “Heat Interface Unit,” is similar to a traditional gas boiler but doesn’t use gas. Think of a big building with lots of homes. There’s one central room where heat is made, and then sent through pipes to each home. Each home has its own HIU…

What to look for when choosing a heat interface unit Some reasons to replace an HIU are that the unit has been neglected without service and become uneconomical to repair, or that it has reached the end of its expected lifetime. Types of HIU The most common types of HIU are: Indirect heating and instantaneous…

Why is HIU service important? HIU is an expensive unit, and with a regular servicing, any problems with the unit can be identified and addressed before any major damage occurs. This ensures that when winter comes and the heating is switched on, there are no surprises. Serviced HIUs run efficiently, which saves energy and keeps…

Neli Valkova
2024-01-05
Excellent company, very prompt and efficient service. Sorted out problem straight away and price was reasonable. Would highly recommend and will keep using their services. Really impressed.
Sofia Costa
2024-01-02
Fantastic service provided by Add Detail! After two terrible experiences with other companies, I discovered Add Detail through a Google search. I messaged them on WhatsApp and received a prompt reply. A few days later, Justin came over and delivered impeccable service. Despite being initially informed that I needed a full HIU replacement, Justin skillfully replaced the malfunctioning pump, leaving everything fully operational! He was incredibly nice and helpful. I plan to rely on Add Detail for all my future HIU servicing needs. I highly recommend them.
Ahmed Saad
2024-01-01
Add Detail Ltd are very professional. Justin was on time, did the HIU annual service by thoroughly checking the HIU and the radiators. He also fixed a problem with the hot water, without extra charge. Add Detail did a great service at a fair and reasonable price. I will highly recommend them.
Veeraj Mewasingh
2023-12-21
Prompt, efficient, professional service. I’m an overseas landlord but communicating with Sigis and booking jobs have always been easy. Had to have my HIU replaced recently and glad to have placed my trust in them.
Artemiy Sobolev
2023-12-19
Everything was smooth, engineer was friendly and helpful, resolved the problem we had
Charlie Davison
2023-12-19
Excellent service and good value
CHIAO-MING LIN
2023-12-11
The engineer from Add Detail is very punctual, professional and efficient. It's the best HIU service experience I've had. Highly recommended!!
Prabhu Galiveti
2023-11-16
Had our HIU serviced. Very prompt to communicate and professional. Charged as per the quoted price and provided quote for recommended works. Thoroughly recommend.
Lucie Gutfreund
2023-10-24
Justin from Add Detail attended to my flat to install new smart thermostats for my underfloor heating and to help me map the manifold actuators with correct areas of the flat, and also checked my HIU. Justin patiently explained everything. Previously I had horror experiences with a large contractor imposed on us by our building's freeholder/ their managing agent, so I am so glad I have found Justin. Also very fair pricing per hour. Have recommended Add Detail HIU to neighbours in our building needing help as well.
Isaac Perez
2023-09-29
Excellent service and very professional engineers
© Add Detail Ltd 2023
2 Kingdom Street, 6th Floor, London, W2 6BD
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