Cost and load

Price the run time before you leave kit on.

Temporary heaters and drying kit can run for hours or days. Estimate the running cost, but keep the amp warning in view before anyone plugs it in.

Running cost and load estimator

Use the input watts from the rating label, not heat output or cooling BTU. The cost is only as good as the tariff and run time you enter.

Supply voltage Supply rating for load warning Warning point Equipment watts each Quantity running together Hours per day Days Electricity tariff, p/kWh

Load first, cost second. A cheap-looking setup is still a bad plan if it overloads the socket, lead or circuit.

Compare temporary heater options once the load and run time look realistic.