Heritage Building Case Study
Historic Mill Conversion with Invisible Infrared Heating
This historic mill conversion required a modern heating solution that would provide comfortable room temperatures without compromising the building’s original character.
The property features exposed brick walls, original timber beams, large open-plan spaces and high ceilings.
iHelios infrared heating film was installed discreetly behind selected wall and ceiling finishes, allowing the building surfaces themselves to provide radiant heat without visible radiators, boilers or heating pipework.
The project
The project involved upgrading a former industrial mill to provide modern thermal comfort while retaining its historic appearance.
Original exposed brickwork, substantial timber beams, tall ceilings and open-plan interiors were central to the character of the building.
The heating system therefore needed to remain visually discreet and avoid intrusive pipe routes, radiator positions or major structural alterations.
The selected solution transformed selected wall and ceiling surfaces into low-temperature radiant heat emitters.
Why conventional heating was unsuitable
Traditional convection heating was not well suited to the scale and form of the building.
In rooms with high ceilings, warm air naturally rises and can accumulate above the occupied area. This can lead to uneven comfort, slower warm-up and unnecessary heating of the upper air volume.
Wall-mounted radiators would also have interrupted the exposed brickwork, reduced usable wall space and required visible pipework or boxing.
Wet underfloor heating was not selected because the required floor build-up and structural work would have affected the existing construction.
System installed
• iHelios electric infrared radiant heating film
• Heating installed within selected walls and ceilings
• Hidden installation behind finished surfaces
• Zoned programmable thermostats
• Weekly heating schedules
• Temperature setback modes
• Open-window detection
• Independent room control
• No boiler or plant room
• No wet heating pipework
• No visible radiators
The result
The completed installation provides even radiant comfort across large internal spaces while remaining hidden behind the finished walls and ceilings.
The system offers a faster response than a high-mass wet heating system and allows rooms to be heated independently.
The original brickwork, timber beams and architectural features remain unobstructed by radiators or heating pipework.
The fully electric design is also ready to operate alongside renewable electricity, solar PV and battery storage.
Historic building infrared heating frequently asked questions
Is infrared heating suitable for historic mill conversions?
Yes. Infrared heating can be particularly useful in mill conversions with high ceilings, exposed materials and open-plan spaces because it warms occupants and surfaces directly rather than relying only on heating the full air volume.
Can a historic building be heated without visible radiators?
Yes. Infrared heating film can be installed behind suitable wall or ceiling finishes so that the surface becomes the heat emitter. This removes the need for visible radiators and wet heating pipework.
Can different rooms be controlled independently?
Yes. Separate programmable thermostats can control individual rooms or zones, with independent temperatures, schedules and setback settings.
Why is infrared heating useful in high-ceiling buildings?
Infrared heating directs radiant warmth toward people and surfaces in the occupied area. This can reduce the impact of warm air rising and collecting above head height.
Can infrared heating be installed in walls as well as ceilings?
Yes. Depending on the room design and installation build-up, infrared heating film can be incorporated behind suitable wall or ceiling finishes.
