Industrial heating systems: a buyer's guide
Heating an industrial building is a six-figure decision at scale, and the wrong system locks in a decade of wasted cost. This guide compares the main industrial heating systems honestly — where each wins, where each loses, and what to check before signing anything.
What is the best heating system for an industrial building?
For high-bay, intermittently occupied or poorly insulated industrial buildings, radiant heating (gas or electric) usually delivers the lowest cost of comfort because it heats people and surfaces, not the air volume. For well-insulated, continuously occupied buildings, warm-air or heat-pump systems can win. The right answer depends on bay height, insulation, occupancy pattern and available fuels — not on which system a supplier happens to sell.
The main system types, honestly compared
Warm-air unit heaters (gas or electric) heat the air, which rises to the roof in a high bay. Cheap to buy, expensive to run in tall or draughty buildings. Radiant systems — gas-fired tube/plaque heaters or electric infrared panels — heat people and the floor directly, so comfort is achieved at lower air temperatures and the heat stays at working level.
Air-source heat pumps deliver the lowest running cost per unit of heat in well-insulated buildings but need low-temperature distribution (large emitters, air handling) and meaningful capital. Destratification fans are not heating but recover warm air trapped at roof level — often the fastest payback in any high-bay building, whatever the heat source.
Gas versus electric radiant
Gas radiant tubes suit large, continuously occupied buildings with mains gas: lower running cost per kWh of heat, but flues, gas pipework, annual servicing and combustion air requirements. Electric infrared suits zoned or intermittent use, buildings without gas, and sites where maintenance access is difficult — zero servicing, instant control, but higher unit cost of electricity.
The honest comparison includes capital, servicing, the building's occupancy pattern and whether you are heating the whole volume or the occupied zones. We model all of these before recommending anything.
What an industrial heating assessment should cover
Bay height and volume, insulation and air-tightness, occupancy pattern by zone, electrical supply capacity and gas availability, racking layout (which blocks radiant paths), and processes that generate or demand heat. Any quote that arrives without a site assessment is a guess.
Send us the building dimensions and current system and we will give you an honest comparison of options with indicative costs — including telling you when the answer is not the systems we refer enquiries for.
A sensible shortlist
- Get a site assessment — never specify from floor area alone.
- Model zoned versus whole-volume heating before choosing a system.
- Include servicing and compliance costs, not just fuel unit rates.
- Check electrical supply capacity for any electric system at scale.
- Price destratification fans alongside any high-bay solution.
Frequently asked questions
Reviewed by the Infrared Heat Solutions technical team · Last updated July 2026 · Data sources: Ofgem price cap, Energy Saving Trust, first-party running-cost model