What are the different types of fan coil units?
Contents |
[edit] Introduction
There are four types of fan coil units (FCUs): horizontal chassis above a ceiling void, horizontal exposed, underfloor and vertical wall mounted units. All options offer a similar level of performance and can deliver heating and cooling, heating only and cooling only, so specification generally comes down to the design requirements and ensuring the building’s demands are met.
[edit] Horizontal above a ceiling void fan coils
Ideal for new build developments or as a retrofit option where the units need to (or can be) concealed in the ceiling void. Fan coils in this type of installation can work slightly harder per unit as acoustics are buffered by the ceiling and any other insulating layers reducing noise levels in space below.
[edit] Horizontal exposed fan coils
Popular as part of an industrial inspired design within offices, restaurants or reception areas. Exposed fan coil design revolves around how the units look and the requirements for installation to align with the aesthetics of interior spaces. Another consideration when exposing fan coils is acoustics. As there is no longer something to insulate any noise produced, you may need to specify larger units working at a lower rate or utilising attenuators to meet the required demands to ensure limited disruption to occupants.
[edit] Underfloor fan coils
A perimeter solution used in conjunction with displacement ventilation system to combat drafts and solar gains from glazed facades or curtain walls. Underfloor fan coils also allow greater floor to ceiling heights for more spacious designs.
All buildings have a raised floor/false floor so submerging those units and then it means that there is the less
[edit] Wall mounted fan coils
Ideal for refurbishments where low ceiling heights limit installation within the void, in which case a vertical unit can either be mounted within a false wall or cabinet, using a chassis type or can be supplied with a case. The units can be mounted either at low level or high on the wall.
Fan coil units offer a dynamic and discreet solution to meet demands in all types of applications and development, providing a comfortable indoor environment for occupants. They can be controlled centrally or on a room by room basis and, in some instances, manufacturers will offer controls that can manage temperature for multiple rooms in a single unit.
For more information on the fan coils solutions and unique controls offered by GDHV or to discuss a specific project in more detail, please contact our team of experts. GDHV also have a comprehensive range of CIBSE accredited CPDs offering advice on fan coils and heat pumps, contact us to book a seminar, or join in the conversation on our LinkedIn page.
--Glen Dimplex Heating & Ventilation, 13:05, 31 Mar 2021 (BST)
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
We're expanding our collaborative mission by launching DB Intelligence, an exclusive market research advisory panel. Built environment professionals can now get paid to share their expertise on industry trends, products and services.
Panel members receive direct financial incentives for participating in research projects like short surveys, 1-2-1 interviews and focus groups. Register today to shape the future of the construction sector.
Building Safety Wiki Interviews
Chief executive of the British Woodworking Federation.
Planning condition discharge in England and Wales
A brief exoplanation from a building compliance expert, with further links.
Overheating guidance and tools for building designers
Guidance for dealing with element of building fabric control that have increasing importance.
Shading for housing, a design guide
From the Good Homes Alliance and British Blind and Shutter Association.
UK Standard Skills Classification (SSC)
A shared framework for describing skills needs.
Social media ban consultation comes to close
CIOB urges UK Government to consider social media’s role in careers guidance in ban debate.
The latest of eight Skills England apprenticeship units
The addition of battery manufacturing welcomed by ECA with a warning about the risks of fast-tracked apprenticeship units.
Building Control Independent Panel final report
A precis of a key report led by Dame Hackitt with full recommendations and link to the government response.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.






















