Heat Interface Units

Efficient Heat Transfer with Heat Interface Units (HIUs)

Accredited by

What Are Heat Interface Units (HIUs)?

Heat Interface Units, or HIUs, are a vital part of modern heating systems. They act as a bridge between individual dwelling units and a central boiler, providing hot water and heating to multiple homes. Instead of each unit having its own boiler, HIUs offer a more efficient and sustainable solution.

Why Choose HIUs?

Energy Efficiency:

  • Renewable Energy: HIUs enable the use of renewable energy sources, contributing to a greener future. With a focus on energy efficiency, HIUs utilise energy-efficient plants
  • District Heating: Hot water is centrally produced and distributed through heat exchangers, reducing waste and conserving energy.

Comfort & Convenience:

  • Rapid Hot Water: HIUs supply hot water on-demand through plate heat exchangers, ensuring occupants enjoy higher comfort levels with a consistently high flow rate.

Cost Savings:

  • Reduced Maintenance: HIUs can help you cut down on maintenance and investment costs. No need for individual gas supplies and boilers in each unit means significant savings.
  • Installation Ease: Installing HIUs is simpler than traditional boilers. No flues, ventilation routes, or gas training qualifications are required for installers.

Maintenance Matters

Regular cleaning is essential to maintain optimal performance. Over time, debris and contaminants can accumulate, leading to decreased efficiency and higher energy bills. At Powerflush UK, we offer power flushing services for HIUs. Our maintenance ensures your heating and hot water system operates efficiently, extending its lifespan.

Optimal Maintenance for Heat Interface Units

Think your heating system is self-sufficient? Think again.

Routine Care Is Key

While Heat Interface Units are known for their low maintenance, regular checks and cleanings are pivotal for their sustained performance.

Combatting Debris Accumulation

Over time, contaminants and debris compromise the system's efficiency. Neglect can lead to diminished heat quality, surging energy bills, and reduced system life.

Comprehensive Flushing Solution

By power flushing the core system and executing individual flushes for every housing unit, we ensure your establishment's heating and hot water mechanisms work seamlessly and endure longer.

Invest in Regular Care

Don't let inefficiencies creep in. Prioritise regular maintenance for consistent, high-quality heating.


John Moran
John Moran
Tom, of Power Flush UK, came out yesterday to power flush our heating system. Prior to his visit we had several radiators which were not heating up and others which only got lukewarm. He did a first class job. The house is now much warmer and the 3 radiators which were the biggest problem are now red hot. He also gave me some excellent advise on how to best operate my system. Tom arrived precisely on time despite travelling nearly 2 hours to get here. There was no mess. I highly recommend them to anyone thinking they need a power flush.
Luke Rose
Luke Rose
Had a power flush, very polite and professional. Explained everything he was doing as he went along, very tidy. Perfect job.
Simon Miller
Simon Miller
Hired them to power flush our heating system which is an Air Source Heat Pump system with two sets of manifolds for ground and first floor. Complete flush overall and then each manifold and each element of the manifold along with radiators. Very pleasant guys, on time, explained everything and showed me the dirt from the internal system and then the clean water at the end before providing the new solution of inhibitor, antifreeze etc at the end. Would definitely recommend anyone who has an air source heat system to remove the dirt and freshen up the internal system to improve the heating efficiency.
Sally Taylor
Sally Taylor
We had a power flush, Absolutely brilliant service, heating want working in my little ones room so we needed someone quick. Prebooked for the new year as everyone was booked up but they had a cancellation and were able to come withing 4 days of me calling. We had a lovely guy called Tom who listened to the issue and what we had previously tried. Tom tried a few things to get the issue we had sorted realised early on that it wasn't working and altered his approach and cleared the blocked pipe we had. Heating works a treat now! Really respectful of our home, wore slippers in the house so he wasn't trailing wet/dirt in the house. Couldn't recommend this service more!
Anna Coupe
Anna Coupe
I'm really pleased that Tom managed to get my central heating working again by flushing out the radiators and pipes. He did a very thorough, expert job and didn't leave until the heating was working correctly. This firm was recommended by a trustworthy plumber and they did not disappoint! I would recommend them to anyone as they sorted my problem out (radiators not heating up) in one day. All toasty for the winter now! Ben was an excellent communicator and I'm a happy customer.
Paul Routledge
Paul Routledge
Ben and his team were extremely professional, helpful and knowledgeable. They turned up on the time they said would even though we arranged the appointment many weeks in advance and they drove from Leicestershire to Lincolnshire. Regarding the job itself, they did a great job of flushing our microbore pipes and now the radiators are working perfectly. We can very highly recommend this company.
These guys fixed the problem that others failed to. They went above and beyond cutting out blocked pipes. Look at the pic! They are simply the best.
Chris Cleaver
Chris Cleaver
Excellent service, good communication, expert operative.
Clinton Woolley
Clinton Woolley
Power Flush UK attended out house in November 2021, our central heating system was completely blocked with all the radiators stone cold. Ben was great and arranged to bring our appointment forward by a week to get us sorted!. Within a hour or so of them being here our radiator's were starting to clear and get warm again. By the end of the day the system was fully up and running and they even fitted a new pump for me which I had bought previously. Excellent company and very tidy. I would highly recommend this company if you require a power flush on your central heating.
W Chowchilla
W Chowchilla
Where do I start, very professional on the phone and when they came out to do the job, Ben on the phone was excellent evey helpful, Tom came out to do the work and with his house slippers so no mess been dragged in and out which was a great idea.They came out to rectify a job that SimplyEco carried out fitting a boiler completely mess it up blocked our whole system and left us with no heating or hot water. Tom came and went to work after hours of trying and keeping at it managed to get everything up and running these guy where life savers our heating and water is working better then ever highly recommended great guys.

Do You Need A Commercial Power Flush?

Switch to eco-friendly heating and ensure it's maintained to perfection. Our team is here to assist you every step of the way.