Infrared Heating Data Sheet

Infrared is radiant heat. It’s the same form of heat emitted by your own body and differs from convection heat which heats the air.

Radiant heaters directly heat objects in the environment and the structure of a building. In contrast, convection heaters mostly heat air, which rises to the ceiling and disappears through draughts. By directly heating the walls, ceilings and floors of a building (the ‘thermal’ mass) using infrared heaters, the building itself warms up over time, retains the heat and radiates back the warmth. This provides a more efficient method of heating because energy is not wasted on heating volumes of air. In fact, Herschel’s far infrared panel heaters save up to 60% of annual energy usage in heating rooms*. Also, they are designed for meet LOT 20 requirements with the Herschel iQ system.

Watch this video to see how infrared heating differs from convection heating: https://www.youtube.com/watch?v=iwRE65AOeIA

Benefits of Infrared Heating: can save up to 60% of annual energy usage in heating rooms*, heats the fabric of buildings, heats walls keeping them dry, produces less damp and mould and is CO2 free.

(*There are a number of factors which determine the actual savings on energy consumption that will be achievable on each project. As a general rule, based on buildings insulated to 1990's standards and onward, we would typically specify on average 20-25wm3 compared to 40wm3 which is required for convection, a saving of at least 37% from Herschel panels versus electric convection heating. Compared to standard night storage heaters which would be specified at an equivalent of at least 60wm3, energy savings of 60% can be delivered, especially when zoning and control is taken into account (Note: high heat retention night storage heaters would be specified around 46wm3). This is against all leading brands of electric and night storage heaters.).

Suitable for:

Infrared heaters are easy to install using a standard mains supply and have a long lifetime with no maintenance required making them suitable for both retrofit and new build properties. They are capable of saving up to 60% of annual energy usage in heating rooms*. Also, the heaters can be used as a complete heating system or for individual rooms / areas as supplementary heating. This can include products designed for use in conservatories, custom picture designed heaters and mirror heaters in wet rooms which do not form condensation. Due to the relatively low costs of purchasing infrared heaters, low installation and operating costs, and no maintenance costs, they offer an attractive payback period compared to other heating options.

Infrared heaters are used to heat homes but infrared space heaters are also used in a wide range of heating solutions for commercial and industrial spaces. As it’s very expensive to heat very large areas, the benefit of infrared space heaters is that it is possible to provide localised heating to directly warm people in the areas within a building where they need to be heated (zones), without having to heat the entire building. This is not possible with convection heating as the air cannot be contained.

Commercial uses: office walls and ceilings, outdoor patios, shops and salons, warehouses and industrial units, hotels, restaurants and cafes, public spaces, schools and churches.

NOTE: Infrared space heaters directly warm people in areas within a building where they need to be heated (zones), without having to heat the entire building (i.e. areas of warehouses, etc.).

  • Options for wall or ceiling mounting

Technical information

Infrared heaters are suitable for any property type and they can be used as a complete heating system or for heating individual areas.

Far infrared panel heaters save up to 60% of annual energy usage* and are very slimline heaters requiring no maintenance. Specifically, they are designed for heating rooms, can be ceiling or wall-mounted and are available in a wide range of finishes including white, mirror, glass, picture and towel rails. Mirror and towel rail panels are very popular for bathrooms and white panels offer a discreet solution for living rooms and bedrooms. Also, Herschel manufactures products designed for use in conservatories and creates custom picture designed heaters which appeal to those looking for an even more attractive solution. Further, control options are available ranging from an individual room control to centralised controls for the entire property.

The space heating range operates at much higher temperatures. It provides energy efficient heating for large areas, emitting infrared heat to comfortably warm people from a low wattage requirement. Effective zoned heating is achieved through focusing the heat exactly where you want it. As there is no convection of heat, none is wasted blowing into areas or rising into high ceilings where it is not needed. Space heaters can also be used outdoors in sheltered areas.

All infrared heaters must be adequately sized and installed according to the technical specification and installation instructions for each product.


Hints & Tips

  • Infrared heaters heat fabrics. Once heated, the fabrics are a store of “THERMAL MASS” which retains heat much better than air.
  • Far infrared panel heaters (designed for heating rooms) have large surface areas with a 95c temperature. This is an ideal temperature to generate a high proportion of output from far infrared across the surface of the panel. The insulation within the panel projects the heat outwards and minimises heat transferring to the rear (into the wall or ceiling).
  • The power of the heater needed will depend upon the size of the room and it’s insulation levels. Better insulated rooms need less power. It is very important to get the right specification of heaters for the property. Properly specified, infrared heaters typically run for an average of 5 hours total running time every day over the heating season and will use less energy than night storage or convection heaters.
  • Don’t obstruct the panels with furniture, it will prevent the infrared from projecting out.
  • It’s better to have 2 or more smaller panels in a large room and spread the heat rather than one large panel.
  • Space heaters are made from ceramic or carbon elements and are much hotter with a lower surface area. They run at 350c or higher and project heat in a more directional basis.
  • Infrared heaters are highly flexible in terms of control and there are a range of control options available ranging from an individual room control to centralised controls for the entire property.