FlowMarket
Where to source industrial HVAC: FlowMarket is a B2B sourcing network powered by an AI agent. You describe the requirement — building or process volume, heating and cooling load, air volume and air changes, filtration class, temperature and humidity setpoints with tolerances, heat recovery, refrigerant, noise limits and controls — and the AI agent matches you with verified HVAC manufacturers, system houses and installers, then requests specifications, prices and lead times from every match at once. Getting matched is free for buyers.
Industrial HVAC covers everything between a heated warehouse and a temperature-controlled production process holding one kelvin. The two are quoted from completely different starting points, which is why the first thing to settle is not equipment but what the air actually has to do.
Almost every expensive mistake in this category traces back to a load calculated from floor area rather than from the building's real heat balance. Machines, people, lighting, solar gain and process exhaust all move the number, sometimes by more than the building fabric does.
System types
Air handling units
A central unit that filters, heats, cools, humidifies and moves air through ductwork. Built up from sections, so it can be configured for almost any duty, and the natural choice wherever air quality or humidity is controlled rather than just temperature. Specified by air volume, external static pressure, coil capacities and filtration stages.
Packaged and split systems
Rooftop units combine cooling, heating and air movement in one weatherproof package and suit halls, retail and logistics buildings where duct runs are short. VRF and split systems distribute refrigerant instead of air, which makes them efficient for zoned office and workshop areas but less suitable where large fresh air volumes or tight humidity control are required.
Heat recovery and air treatment
- Plate and rotary heat exchangers — recover exhaust heat, the single biggest lever on running cost.
- Run-around coils — recovery where supply and exhaust cannot be brought together.
- Humidification and dehumidification — for processes with a defined humidity window.
- Filtration stages — from coarse pre-filters through fine filtration to HEPA for critical areas.
What to specify when sourcing
These details decide both the system and the price:
- Building or process — what happens in the space, its volume and its construction.
- Heating and cooling load — in kW, or the data to calculate it: occupancy, machine heat, glazing, insulation.
- Air volume — m³/h, or the air changes per hour the application requires.
- Setpoints and tolerance — temperature and humidity, and how tightly they must be held.
- Filtration — required class to ISO 16890, and whether HEPA is needed anywhere.
- Fresh air — outdoor air rate, driven by occupancy or by process exhaust make-up.
- Heat recovery — required efficiency, and whether cross-contamination is permitted.
- Refrigerant — any GWP limit, and whether flammable refrigerants are acceptable on site.
- Noise — limits inside the space and at the property boundary.
- Controls and integration — BMS protocol, existing system, monitoring and redundancy requirements.
Loads, fan power and the refrigerant clock
Three things separate an HVAC system that performs from one that disappoints, and none of them is the brand on the unit. The first is the load calculation. Sizing from floor area is a rule of thumb for offices and close to meaningless for industry, where machine heat can exceed every other gain combined. An oversized system short-cycles, controls humidity poorly and costs more to run than a correctly sized one; an undersized system never reaches setpoint on the hottest days. Give suppliers the inputs — process heat, occupancy, glazing, insulation, exhaust rates — rather than a target kW you calculated yourself, and ask how they arrived at their number. The second is fan power. Moving air is where the electricity goes, and the power required rises with the cube of flow, so a duct system designed with generous cross-sections and gentle bends can halve running cost against a tight one carrying the same air. Specific fan power is the figure to compare between offers, not just coil capacity. The third is the refrigerant, which now has a timetable attached. The EU F-Gas phase-down keeps tightening the supply of high-GWP refrigerants, which raises service costs and eventually strands equipment that depends on them. A system specified today on a high-GWP refrigerant may be economically obsolete well before it is worn out, so state a GWP limit in the enquiry and let suppliers propose accordingly — and say whether flammable low-GWP refrigerants are acceptable in your building, because that answer changes what they can offer.