Why Infrared Heating Is the Smart Choice for Decarbonisation Projects

The UK's decarbonisation agenda is accelerating. Public sector bodies, housing associations, schools, local authorities and commercial landlords are all under increasing pressure to move away from fossil fuel heating, and to do it within tightening timescales and budgets. The question is no longer whether to decarbonise, but how to do it practically, affordably and at scale.

Heat pumps dominate the conversation. They receive government grant funding, widespread media coverage, and he lion's share of contractor attention. But for a significant proportion of the UK's building stock, particularly older properties, intermittently occupied buildings, high ceilinged spaces and building with limited outdoor space, heat pumps are not the most practical or cost effective answer. Infrared heating is, here's why.

What is infrared heating?

Infrared heating panels emit radiant heat, the same natural energy as sunlight, that warms the people, surfaces and objects directly rather than heating the air. Unlike convective heating systems, infrared does not rely on warming a volume of air and hoping it stays where it is needed. The heat is absorbed by the thermal mass of the room and radiated back, creating a consistent and comfortable warmth that is both faster to achieve and more efficient to maintain.

Infrared panels are fully electric, zero emission at the point of use and connect to a standard electrical supply. There is no pipework, no boiler, no groundworks and no annual servicing requirement. Panels are wall or ceiling mounted and installation is typically completed in hours rather than days.

Why Infrared Is Particularly Well Suited to Decarbonisation Projects

It Replaces Gas Completely

One of the most common objections to infrared heating in whole building retrofit contexts is that it provides space heating only, leaving hot water as an unresolved requirement. Infrared Group Ltd resolves this directly. We supply and install compatible unvented hot water cylinders alongside our infrared panels systems, delivering a complete space heating and hot water solution in a single package.

This means infrared can replace a gas boiler system in its entirety, from a single supplier, through a single installation programme, with a single warranty. The argument that heat pumps are the only technology capable of replacing gas boilers completely no longer applies.

The Capital Cost Advantage Is Decisive

Decarbonisation programmes are constrained by budget. The capital cost of an infrared heating system, even including an unvented hot water cylinder, is typically 60-80% lower than an equivalent air source heat pump installation across most building types.

For a school block, an infrared complete package typically costs £10,000 to £30,000. An equivalent heat pump installation costs £45,000 to £120,000, before any associated infrastructure, insulation pre-works, or electrical supply upgrades. For social housing, an infrared package per property runs to £2,500 to £6,000 versus £8,000 to £15,000 gross for a heat pump.

That capital cost difference is transformative at scale. A housing association with a budget of £500,000 to spend on decarbonisation can upgrade 80 to 200 properties with infrared heating. The same budget funds 33 to 62 heat pump installations.

Installation Is Faster and Less Disruptive

For decarbonisation programmes operating in occupied buildings, tenanted social housing, schools in term time, operational healthcare facilities, installation disruption is a serious practical and reputational risk.

Heat pump installations in a typical social housing property take two to five days and frequently require tenant decanting. A school block retrofit takes two to six weeks, often spanning into term time. The associated decanting, temporary accommodation, and programme management costs add significantly to the total project cost.

An infrared heating system in a social housing property is typically installed in one or two days, with the tenant remaining in the property throughout. A full school block is completed in two to four days, deliverable within a single holiday period. Modular and temporary buildings can be heated in a single day without structural intervention of any kind.

It Performs Where Heat Pumps Struggle

Heat pumps are well suited to well insulated, continuously occupied buildings with adequate outdoor space and a distribution system capable of operating at low flow temperatures. That describes a relatively small proportion of the UK's existing building stock.

For the remainder, older buildings with solid walls, high ceilinged spaces, rural properties without outdoor plant space, buildings with intermittent occupancy, modular and temporary structures, infrared performs where heat pumps wither cannot or perform poorly.

High ceilinged spaces are a particularly important case. In a school hall, a bus depot, a warehouse or am agricultural building, convective heating systems, including heat pumps, heat the air, which rises and accumulates above the working zone. The energy is wasted. Infrared heats the people and surfaces at floor level directly, regardless of ceiling hight. The efficiency advantage in these environments is not marginal, its substantial and measurable.

Zone Control Saves Real Energy in Real Buildings

Heat pumps are designed for continuous, low temperature operation. They function best when maintaining a steady background temperature across a whole building. In a building where different spaces are occupied at different times, a school with a complex timetable, a block of flats with varied occupancy patterns, a commercial building with meeting rooms and storage areas, continuous background heating is inherently wasteful.

Infrared panels provide inherent room level control. Each space is independently managed by its own thermostat, with its own schedule, set point, and on/off control. Switching a room off saves one hundred per cent of that room's heating energy consumption with no adverse effect on any other zone. There is no efficiency penalty for zoning, and no background temperature maintenance required.

For a school, this means heating only the classrooms that are timetabled for use on any given day. For social housing, it means each tenant controls and pays for only their own heat. For commercial properties, its means a meeting room used three times a week is heated three times a week, not continuously.

EPC and SAP Treatment Is Improving

Infrared heating has historically been penalised in EPC assessments, grouped with basic direct electric panel heaters and assessed against unfavourable default assumptions. That is changing significantly.

The introduction of The Home Energy Model and SAP 11 in 2026 adds infrared as a distinct heating technology in the assessment database, assed on its actual measured performance rather than generic defaults. The Appendix Q FIR category, launched in mid 2025, allows assessors to use real panel data, and evidence from re-assessments using correct data shows improvements of tow EPC grades in some cases.

For decarbonisation programmes targeting EPC C across housing stock, or seeking to improve school and commercial building ratings, the combination of accurate SAP assessment, smart thermostat controls, and solar PV integration positions infrared as a credible and effective route to improved ratings.

Solar PV Integration Is Natural and High Effective

Infrared panels and solar PV are the most natural partnership in low carbon heating. Solar generates electricity during daylight hours, precisely when heating demand exists across schools, commercial buildings, and occupied homes. Infrared's thermostatic, intermittent load profile is far better suited to being powered by on site solar generation than a heat pump's large, continuous draw.

A school or commercial building with a rooftop solar installation running infrared panels on a self generated electricity during the school day can achieve an effective electricity cost of three to five pence per kilowatt hour, dramatically lower than grid electricity rates. Across a full academic or working year, the impact on running costs is substantial.

Where hot water cylinders are included in the package, the cylinder can be programmed to charge during peak solar generation hours, maximising self-consumption across both space heating and hot water and further reducing grid import.

Who Should Be Considering Infrared for Decarbonisation?

Infrared heating is particularly well suited to decarbonisation projects in the following contexts:

Housing associations and local authorities upgrading off gas stock, void properties, or properties where heat pump installation is impractical due to building fabric, space constraints, or cost.

Schools, academies and multi-academy trusts replacing ageing gas boiler systems, where installation during holiday periods and room level control for timetabled occupancy are key requirements.

NHS trusts and healthcare facilities where infection control benefits, infrared does not circulate air or airborne particles, and zero maintenance operation are meaningful advantages.

Modular and temporary building operators for whom infrared is frequently the only practical electric heating solution given the structural and spatial constraints of lightweight construction.

Commercial landlords and facilities managers managing mixed use buildings with variable occupancy patterns where zoned level control and energy efficiency are financial priorities.

Public sector decarbonisation projects working within fixed capital budgets where the volume of properties upgraded matters, and where infrared's lower cost per unit delivers a materially better outcome per pound spent.

The Honest Comparison

Infrared is not the right answer for every building. In a well insulated, continuously occupied property with adequate outdoor space and a distribution system capable of low flow temperatures, a heat pump will deliver a running cost advantage. We say that honestly because we believe decision makers deserve accurate information rather than marketing.

But for the large proportion of the UK's building stock that does not meet those conditions, and for decarbonisation projects operating under a real world budget, time and disruption constraints, infrared heating delivers a compelling, practical and cost effective solution that deserves to be at the centre of the conversation.

Find Out More

Infrared Group Ltd is a specialist infrared heating manufacturer, supplier and installer based in Chesterfield, Derbyshire. We design, supply and install complete infrared heating and hot water systems for public sector decarbonisation projects, housing associations, schools, healthcare facilities and commercial properties across the UK.

We offer free site surveys, full system design and no obligation specifications and costings for any project.

Call us on 0333 090 7160, email info@infraredgroup.co.uk or visit infraredgroup.co.uk to find out more.