Halo 4.8 – 7.8kW Infrared Heater
FROM £5,999.00
Halo Infrared Heater for Heritage Buildings and Churches
Halo Infrared Heater for Heritage Buildings and Churches Halo installed in a Lady chapel Halo - The ultimate heating option for heritage buildings Halo Far Infrared Heaters heating a church Herschel Halo used in Sarah Beeny's project Stokeford Studios Herschel Halo St Michael's Church, Aynho, Installation Halo is completely CO2 free Herschel Halo Bespoke heritage heater Halo with no decorative elements available Herschel Halo with a discreet black finish Bespoke Contemporary Halo Design

Halo 4.8 – 7.8kW Infrared Heater

FROM £5,999.00

Key Features:

  • Zero light heater with optional LED lighting
  • UK manufacture with British made steel
  • Optional bespoke decorative designs
  • Fast warm up times
  • Far infrared preserves historic interiors
  • Ideal for places of worship & heritage properties

Please note this is a Special Order item that is made to order. Delivery charges will apply, subject to quote. Please contact Herschel to discuss your Halo specification, and APX controls, prior to ordering.



4800W standard

141.5 x 110 x 38cm

20 - 30




4800W with lights

160 x 110 x 38cm

20 - 30




4800W with decor

141.5 x 110 x 38cm

20 - 30




4800W with lights & decor

160 x 110 x 38cm

20 - 30




7800W standard

141.5 x 110 x 38cm

30 - 50




7800W with lights

160 x 110 x 38cm

30 - 50




7800W with decor

141.5 x 110 x 38cm

30 - 50




7800W with lights & decor

160 x 110 x 38cm

30 - 50



Special Delivery

5 year warranty

Reduce heating Cost

Energy efficient

Professional Install

Zero Maintenance

Find Out More

  • Description


    The Herschel Halo is our highly innovative, zero light specialist heater designed to provide churches and heritage buildings with a net zero heating solution – delivering cost-efficient radiant comfort whilst preserving and protecting historic interiors and artifacts. The Halo has been designed in direct response to high demand (Registered UK Design No. 6321585).

    Following extensive research and development the Halo is manufactured in the UK by Herschel, using British made steel along with aerospace-grade aluminium. Beautifully designed to complement the heritage aesthetic, Halo suspends from high ceilings to effectively warm hard to heat spaces.  Emitting zero light heat using far infrared radiant technology, the Halo will directly, gently and safely warm people, objects and the building rather than warming volumes of air like alternative convection heaters. With the option to add dimmable LED lights and stunning decorative finishes, the Halo provides the ideal heating solution for places of worship, listed properties, theatres, hotel lobbies as well as large industrial spaces.

    Energy monitoring of Halo heaters in a UK Church over the winter of 2022/23 showed an 80% reduction in energy used and 63% reduction in the heating bill compared to running the gas heating system. Per service this equates to a cost of around £17-20 because the heaters only need to be on for the duration of the service. In comparison the gas system would have to run on full for many hours in advance of the service to heat the church and at current prices would be costing up to £100 per service on cold days.

    The Halo is available in 4.8kW and 7.8kW and should be used in conjunction with the Herschel APX Controller. Herschel provides a range of bespoke APX control options including simple on/off operation to more sophisticated controls including three power levels (2.6kW, 5.2kW and 7.8kW) for the 7.8kW model, thermostat and remote App control plus motion detection to ensure efficient operation according to your requirements.  With Herschel’s long life Kanthal ceramic elements and no moving parts, Halo is maintenance free, has no hazardous components and is 98% recyclable. To ensure the Herschel Heritage range incorporates the very best components and finishings, the grill has been nickel-plated to deliver longevity and protection against corrosion. Delivering fast warm up times and the ultimate flexibility in control, Halo can be used to either gently heat occupants in defined bubbles, within large spaces, or alternatively heat the entire building. Compared to heat pumps and convection based systems savings of over 50% on consumption can be achieved, delivering reduced energy consumption via a 100% CO2 free sustainable solution, when combined with renewables.

    The recommended height for installation of the 4.8kW Halo is 3.5 – 4m, with a heated area of 20 – 30m2. The recommended height for installation of the 7.8kW Halo is 4 – 5m, with a heated area of 30 – 50m2.  These areas are a guideline only and will be impacted by airflow and ambient temperatures. Dependent upon the property age/type, insulation levels and levels of airflow present, the number of heaters required and running times will vary. For larger domestic or commercial projects we recommend the Herschel Heritage team carry out a survey or detailed desktop assessment.

    Our Heritage team offer a full specification service including 3D scans and visual representations, where appropriate, using the very latest technology. Take a look at this link to see a 3D scan of the Halo heaters installed at St Matthew’s Church in Bristol.

    Please note this is a Special Order item that is made to order. Delivery charges will apply, subject to quote. Please contact Herschel to discuss your Halo specification, and APX controls, prior to ordering.

    Registered UK Design No. 6321585.

    Running times will be impacted by airflow, ambient temperatures and how the areas are used. Dependent upon the property age/type and levels of airflow present, the number of heaters required and running times will vary.

  • Technical

    Technical Specifications

    Heater Type: Fixed electric high temperature infrared heater

    Surface: British steel with aerospace-grade aluminium & nickel-plated grill

    Cable Length: Not included. Terminal box in the top section for connection.

    Voltage: 220 - 240V 50/60Hz

    Protection Class: IP20

    Installation: Ceiling-mounted only

    Heating Element: Herschel Kanthal Ceramic Element

    Warm-up Time: <10 Minutes

    Useful Wavelength: 3 - 10µm

    4.8KW Halo:       Single Phase 220-240V – Wired as a single circuit

    7.8KW Halo:       220-240V – Wired as 3x 2.6KW, line to neutral circuits, suitable for single-phase or 3-phase supply

    Please contact Herschel Infrared for more information and to discuss how the Halo heaters and lighting can be controlled by our own APX system offering different options of control.

    Electromagnetic tolerance: Low emission


    Options available for with/without LED lights and with/without decorative finish. Bespoke decor/colour options also available.


    Hanging System: This unit is for ceiling mounting only and must be installed beyond the reach of people due to the high surface temperature. It can be hung using a number of different mechanisms from wires to chains (provided by others) which must be capable of handling 4 x the weight of the heater.

    Heated Zone: 20m2 – 30m2 (4.8kW Halo), 30m2 – 50m2 (7.8kW Halo)

    The heater will directly warm people and objects within the Heated Zone (note: air movement may reduce area coverage). Within enclosed areas the thermal mass of the building will also be heated within the entire zone.  Dependent upon the property age/type, insulation levels, number of heaters used and running times this will increase the ambient temperatures. For larger commercial projects or where different mounting heights are required we would always recommend Herschel carry out a survey or detailed desktop assessment.

    The heaters are not suitable for household or similar use. Also, the heaters must not be used or installed in any commercial premises where they can be accidentally touched.

    Quality & Safety


    EU/ UK Electrical Safety: For Commercial Use Only

    Restriction of Hazardous Substances (RoHS): IEC62321

    Ecodesign Compliance: ErP Regulation (EU) 2015/1188 and Supplement (EU) 2016/2282 (Lot 20) when using Herschel Controls

    Warranty: 5 Years

    Note: Warranty excluding Ceramic Elements 12 months plus any cost of installation or consequential losses.

  • Manuals and Guides
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Halo Infrared Heater for Churches and Heritage Buildings

Heritage Specification Service

Herschel has a dedicated team of in-house surveyors and specialists who perform on-site and desktop estimating services,  using the latest technology to offer 3D scans and visual representations for commercial heating projects. The team will work with you to understand your requirements and tailor a bespoke solution for your needs.

Heritage Specification Service available

Contact us with your project details
Herschel Halo St Michael's Church, Aynho, Installation

Explore our Heritage Videos

Listen from people who have had Halo installed in their church on our Heritage Videos page, featuring testimonials and behind-the-scenes videos showing the manufacturing process of the Halo in Herschel’s UK Production Facility.

Browse Heritage Videos

How effective is the Halo at heating people when sat for long periods of time? Can the Halo be used for heating churches in regular use?

The Halo can be used to heat people effectively and comfortably regardless of the duration the warmth is required for. Feedback from an installation of Halo heaters at St Matthew’s Church is that the Halo provides very good levels of comfort which St Matthew’s characterise as ‘better than we ever had from the radiators’ and they describe the actual effect to feeling like a ‘bubble of heat’ – to the point that they note it ‘doesn’t feel like it’s actually coming from the heaters themselves’.
Halo will work very well for churches that are in regular use. As an example, St Matthew’s is in regular, daily use and they run the Halo heating in exactly the same way as one would turn on the lighting. They have confirmed that Halo is switched on only as and when required, and when the use is occurring. Within 10 minutes they have their required comfort – with no need for background heating at other times. This is completely different to alternative systems which require low background convective heat to be kept on for long periods and this subsequently requires boosting to heat services and events. This is not required when using Halo and this is why Halo is such an efficient system for providing comfort.

How warm will the church be?

With sufficient heaters we can heat the entire church. However, this is unlikely to be the most cost-effective way of heating as it will consume a high amount of energy, especially in older, poorly insulated churches that were never built to be heated.

For churches with less frequent use “Sunday Churches” and those that are rarely fully occupied, by far the most cost-effective method will be to provide zones or “bubbles” of heat focused on the area in use. For example the main nave. Other areas not in use can remain unheated. People will be directly warmed by the heaters when they are on within proximity of the infrared heater and often, a shorter pre-heat time is needed to take the chill off the area. The feeling of thermal comfort will be affected by cold air but the radiant heat will provide a good level of comfort for people within the heated area. We usually aim for “real feel” temperatures (the temperature you perceive) of between 17-19°C unless higher comfort levels are required.

If the church is investing in solar, our APX system can automatically provide background heating for the building when electricity is being generated from the solar PV. This can be a useful way of raising the overall internal temperature of the church at nil cost, and zero CO2, and will reduce the demand for heating during services. Our systems will also work with smart “time of use” tariffs from energy providers (such as cheap overnight rates).

It is important to understand that currently, the daytime electricity rate is around 3 times more expensive per kilowatt of energy than fossil fuels. This will change in the future but in the meantime as we transition to net zero, heating bills will be higher if switching from a gas / oil boiler unless the new infrared heating system is used differently to traditional ways of heating and occupants’ expectations levels are managed.

Control, zoning and the placement/heights of the heaters are crucial to a successful installation and energy efficiency.

Will the Halo heaters work in providing comfortable warmth during cold winters?

Yes the Halo heaters will work well in providing comfortable warmth during cold winters and the Herschel Heritage team will ensure the required number of heaters are specified in accordance with your requirements. In the installation at St Matthew’s, the Halo heater specification totals 31.2 kW (on full power). This compares to their existing central heating (at St Matthew’s) of 186kW. So far (during October/ November 2022) the results show that Halo is providing comfort at 1/3 of the total power, and therefore we do not anticipate any problems in dealing with colder temperatures at full power for St Matthew’s or any other church or heritage property.

Will the Halo chandelier heaters frazzle heads and freeze feet?

No they will not. The Halo emitters are completely different to the old quartz ray emitters that were previously common for this type of application. The effect felt is more of a space heating, gentle comfort and this was specifically tested with occupiers at St Matthew’s – no frazzle of heads or cold feet was detected.

What technology does the Halo use and how does this differ from other radiant space heaters?

The technology used within the Halo heater is far infrared. This is different from the technology used by other more ‘traditional radiant heaters’ from other providers, which have typically used shortwave infrared technology and the feeling of comfort from far infrared is a much more gentle feeling of warmth, ideal for the heating of people. We use the analogy of watering a tender plant with a hose. The old technology is akin to the hose being on ‘jet’, highly targeted, whereas the technology in Halo is akin to the hose being on ‘fine mist’ – everything gets gently wetted (or gently and comfortably heated).

Can the Halo damage the fabric of the interior or valuable objects and artefacts or cause delicate surfaces to expand?

No, there is no risk of damage from the Halo. The radiant wavelength is similar to that which humans radiate, and the measurable surface temperatures are no greater than they would be through human contact. The feeling of heat is similar to that of the heat of the sun through a window and there is no additional risk of differential expansion than that. (Conversely, this has previously been a risk from using quartz ray/near IR type heaters and is also true of radiators).

Will the Halo be unsightly and ruin the aesthetics of the interior?

No, not at all, in fact the design of the Halo has been specially developed to complement interiors and also comes with the option to add dimmable LED lighting and bespoke décor/colours to the finish. Traditional radiant solutions have emitted a strong red, intrusive glow from the heating element however Halo emitters do not glow, they emit zero light heat. We fully expect the aesthetic design of the Halo to be very well received and another one of the benefits from installing the Halo.

Is the Halo heater expensive to run? Will it be costly to heat our church which is used regularly.

The Halo presents a hugely efficient solution for churches and hard to heat listed properties as it directly heats people and buildings, rather than wasting energy heating the air. After the initial trial at St Matthew’s the treasurer is predicting (via monitoring use so far) that the energy use of Halo for a typical service is less than 1/9th of the existing use via the central heating. This is a huge saving on energy consumption and as the cost per unit of electricity comes more into line with the unit cost of gas, this saving will become greater still. In addition, when the electricity is powered by renewables, this is a hugely sustainable heating solution.

Is installation of the Halo disruptive and do you need specialists to install it?

The Halo heater can be installed by qualified electricians, providing a non-intrusive installation for building managers with no skills shortage issues.

Are there any maintenance requirements for Halo and do you need an annual service?

The Halo has no moving parts and requires no servicing, unlike heat pumps and boilers. This represents a significant cost saving over the lifetime of the heating system. Halo has been designed so that all parts have long lifetimes and are easily replaceable.

Does Halo qualify under the Listed Places of Worship Scheme?

Yes absolutely. Under the scheme listed churches can claim a grant in lieu of VAT, and thus significantly reduce the net capital cost in installation.