Temporary HVAC power
Use the tools as a chain: equipment amps → cable/voltage drop → RCD leakage → generator kVA → phase balance → exportable power note.
A guided flow for answering: can this site supply run the electric heaters without cooking reels, dropping voltage or overloading one phase?
Turn room size, humidity and available power into a drying stack: dehumidifiers, air movers, heater support, RCD split and daily log.
Estimate cooling, start current, exhaust duct losses, condensate handling and generator demand for temporary cooling.
Link high-bay heat loss, door ventilation, destratification and temporary electric heater power into one plan.
Diagnose why drying, cooling or heating equipment trips protection: leakage budget, start current, panel map, lead condition and visual heat-risk scan.
Build a generator plan for heaters, AC, dehumidifiers and fans with kVA, compressor start, voltage drop, RCD and sequencing checks.
Check whether a 110V site transformer can realistically power temporary heaters, dehumidifiers, fans or drying kit without overload or ugly voltage drop.
Estimate cumulative leakage from compressors, dehumidifiers, portable AC, heaters, pumps and long wet leads before stacking everything behind one RCD.
Size a generator for portable AC, dehumidifiers, fans and heaters with a start-current allowance rather than only running watts.
Check whether a coiled, partly unwound or long extension reel is a bad match for a 2kW or 3kW temporary heater.
Allocate single-phase heaters, dehumidifiers, fans and portable AC units across L1/L2/L3 to reduce imbalance and nuisance trips.
Convert heater kW into current at 110V, 230V or 400V and check 13A, 16A, 32A and three-phase supply classes.
Pick the likely connection class for an electric heater: 13A plug, 16A, 32A, 63A or three-phase.
Plan staged heater switching and phase allocation so large temporary heating sets do not hit one supply at once.
Estimate extra heat needed when extract fans, open doors or air changes are dragging warm air out of a workspace.
Estimate litres/day capacity from room volume, temperature, humidity and drying target, then check power requirements.
Choose a dehumidifier type based on temperature, RH, target and site conditions.
Calculate dew point and cold-surface condensation risk, then decide whether heat, dehumidification or airflow is the first lever.
Combine dehumidifiers, air movers and support heaters into a staged circuit plan for drying jobs.
Check whether a dehumidifier or portable AC condensate route is likely to need a pump or a shorter drain path.
Create a simple daily drying log with RH, temperature, moisture readings, equipment and circuit notes.
Estimate airflow required for workshops, drying rooms, stores and warehouses by room volume and target air changes.
Suggest count and placement pattern for air movers in a drying room based on wet surface area and room shape.
Estimate how duct length, bends, inlet restrictions and outlet restrictions reduce nominal fan airflow.
Estimate air scrubber airflow needed to maintain containment or repeated air cleaning in a work zone.
Estimate whether destratification fans could reduce heat stacking and improve heater effectiveness in high spaces.
Estimate portable AC capacity in kW and BTU/h for offices, plant rooms, events, kitchens and workshops.
Estimate spot cooling for server rooms, production lines, events and overheated work zones.
Estimate start-current pressure on breakers or generators for portable AC and compressor loads.
Estimate cooling performance loss from long exhaust duct runs, bends and recirculation risk.
Plan tank emptying, gravity drain or pump route for unattended portable AC operation.
Select a likely temporary connection class based on load current, voltage, environment and duty cycle.
A selector aid for AC, dehumidifiers, inverter drives, electronic controls and mixed temporary HVAC equipment.
Estimate whether fan or compressor starting current is likely to be harsh for a B, C or D curve MCB.
Lay out a temporary board for heaters, drying equipment, fans, portable AC and lighting, with circuit groups and notes.
A practical visual checklist for plugs, sockets, reels, commando connectors and temporary HVAC leads before use.
