Electric spray booths are no longer a niche choice. Across automotive refinishing, aerospace MRO and volume manufacturing, body shops and finishing facilities are replacing gas-fired systems with electric alternatives — not because legislation is forcing their hand, but because the numbers make the decision obvious.
This article covers what that switch actually looks like: the costs, the efficiency gains, the safety profile, and the regulatory picture for UK operators.
The short answer: yes, in most cases — and the gap is widening. Gas-fired spray booths burn natural gas or LPG to heat the booth to spray temperature (typically 20–22°C) and cure temperature (60–80°C). The efficiency of a gas burner in this context is around 75–85%. Electric resistance heating, by contrast, converts close to 100% of input energy into usable heat, with no flue losses.
Modern electric booths can incorporate air-source heat pump technology, delivering 2.5–3.5 units of heat for every unit of electricity consumed — dramatically undercutting gas on a cost-per-kWh basis. Electric booths also offer solar PV compatibility, no standing charges for gas supply, and eligibility for smart grid demand-response programmes that reduce peak tariff exposure.
For a typical body shop running two cure cycles per day, switching from gas to an electric booth with heat pump assistance has reduced annual energy bills by 30–45% in independent assessments. Your actual figure depends on booth size, usage intensity, and energy contracts.
A single-vehicle electric spray booth (approximately 7m × 4m × 3m) typically draws 4–8 kW during the spray phase and 20–40 kW during the cure phase. A full bake cycle consumes 8–15 kWh depending on ambient temperature and target cure temperature. At current UK commercial electricity rates, that equates to approximately £1.80–£3.50 per cure cycle.
Gas is currently cheaper per kWh at the meter. But the total operating cost picture — when you include maintenance, compliance overhead, and volatility risk — increasingly favours electric. Gas prices have proven significantly more volatile, and the electric figure continues to fall as the grid decarbonises and heat pump performance improves.
Yes — materially so, on several dimensions. Gas-fired booths introduce an ignition source into an environment that handles flammable solvents and paint mist. The burner must be interlocked and isolated from the spray zone, adding complexity and potential failure modes. Electric heating elements, when correctly specified, operate below the auto-ignition temperature of most coatings and contain no open flame.
Under ATEX regulations (retained as UKEX post-Brexit), spray booths are classified as potentially explosive atmospheres during spraying. A properly specified electric booth meets these requirements without the additional gas safety infrastructure — pressure proving, flame supervision, manual isolation — that gas systems require. Electric booths also eliminate the carbon monoxide risk inherent in gas combustion.
Consistency is the critical variable in finishing quality, and electric booths have a meaningful advantage. Gas-fired systems heat air via a burner and heat exchanger, introducing temperature variance during the transition from spray to cure. Electric systems — particularly those using panel heaters or heat pump fan coils — achieve more uniform temperature distribution and a more controllable ramp rate.
For waterborne coatings, which are increasingly mandated under VOC regulations, temperature consistency during the cure phase directly affects flow and levelling, film hardness, and cycle time predictability. Electric systems also allow a controlled low-temperature flash-off phase before the bake — something gas systems with on/off burner control are poorly suited to deliver.
UK operators work within several overlapping frameworks. The Health and Safety at Work Act 1974 and COSHH Regulations 2002 require booths to control exposure to paint mist, solvents, and isocyanates — airflow requirements apply regardless of heat source. ATEX/UKEX regulations govern equipment in potentially explosive atmospheres. The Environmental Permitting Regulations 2016 cover VOC emissions for high-activity sites.
Critically, the Gas Safety (Installation and Use) Regulations 1998 apply only to gas-fired installations. Electric booths are not subject to these requirements — eliminating the need for Gas Safe registered maintenance, mandatory annual inspections of the gas train, and pressure-proving interlocks. For many operators, this compliance simplification alone justifies the switch.
On future regulation: the UK government's net-zero commitments include phasing out new gas installations in commercial properties. While spray booths are not yet specifically targeted, the direction is clear. Gas infrastructure investment today carries stranded-asset risk that electric does not.
Purchase price for an electric booth is broadly comparable to gas — the simpler heat source (no burner, heat exchanger, or gas train) offsets the cost of electrical infrastructure upgrades. The most common additional cost is upgrading to a three-phase power supply (32–63A), which typically runs £3,000–£12,000 depending on proximity to the DNO network.
Lease and finance options from specialist lenders mean the capital cost of switching can often be structured against the operating savings — achieving a cash-flow neutral or positive position from day one. Decommissioning a gas connection carries a one-off cost but eliminates future standing charges and Gas Safe inspection requirements.
For most operators, yes — particularly those replacing an end-of-life gas booth, running waterborne paint systems, operating under OEM or fleet sustainability commitments, or in regions with above-average gas price exposure. The technology is mature. The economics are compelling. And the regulatory direction only points one way.
The operators for whom electric may not yet be the right choice are those with gas supply contracts locked in for several years, or sites where electrical infrastructure upgrade costs are prohibitive. For everyone else, the question is less whether to switch — and more when.