We cover the whole of the UK
Myriad have the whole of the UK covered with our nationwide network of in-house engineers, trained and accredited to work on heating systems.
We Can Guarantee:
- Nationwide network of locally placed skilled service engineers specialising in low carbon technologies.
- Service engineers equipped with the latest tools and equipment.
- Rapid response and out of hours support available.
- Technical support available over the telephone from trained and friendly experts
- Huge UK stock of spare parts and accessories.
What Is An HIU?
A heat interface unit (HIU) is a block about the same size as a domestic boiler that takes heat from a central source and distributes it to the property.
HIUs are commonly installed in apartments instead of a gas boiler. The central boiler may be in the basement and heating pipes transfer hot water to each HIU. The radiators and domestic hot water taps are piped to the HIU. Inside the HIU is a series of control valves and heat exchangers to control the amount of heat that goes to the radiators/tap water.
There are ‘Direct’ and ‘Indirect’ versions available. Mostly you see the ‘Indirect’ versions in the UK. These have a heat exchanger for supplying central heating and also a heat exchanger for instantaneous domestic hot ‘tap’ water.
Inside there will also be a complete set of parts to give a fully working system. Only the pipes to the radiators and taps are required to be connected, including an expansion vessel, a heat meter, a circulation pump and temperature control actuators.
Why Are HIUs A Good Idea?
As an HIU is a direct replacement for a gas boiler it means that gas is not needed inside the apartment. This is good from a safety, installation and maintenance cost perspective. Also, if the central boiler is replaced with a low carbon option, eg Biomass, then the whole apartment block could become low carbon very simply and cheaply.
Do HIUs Need Servicing?
Servicing is essential to ensure the correct temperatures are achieved in the heating and hot water system and the whole system is working efficiently.
Service Plans
We would recommend an annual visit to ensure everything is working correctly, correct temperatures are being achieved etc. You will be provided with a written report that provides a full account of all the activities undertaken on the HIU including recommendations for further works.
A record sticker should also be left on the HIU for easy future reference.
