Tank Heater Calculator

Tank and process inputs

Enter the internal tank dimensions and operating conditions. The calculator assumes a water-like solution unless a different density and specific heat are entered.

Internal length (m)

Internal width (m)

Solution depth (m)

Working fill (%)

Starting temperature (°C)

Target temperature (°C)

Desired heat-up time (hours)

Ambient temperature (°C)

Solution density (kg/m³)Water is approximately 1000 kg/m³.

Specific heat (kJ/kg·°C)Water is approximately 4.186 kJ/kg·°C.

Tank construction

Design margin (%)

Tank / process reference

No calculation yetEnter the tank and process details, then select Calculate.

Recommended minimum installed heater capacity —

Working volume—

Solution mass—

Temperature rise—

Energy to heat solution—

Heat-up duty—

Estimated heat loss—

Combined duty before margin—

Estimated maintenance duty—

This is an indicative engineering estimate. Final heater selection should consider tank geometry, covers, ventilation, evaporation, solution chemistry, heater efficiency, electrical supply, local hot spots, circulation, material compatibility and the heater manufacturer’s design guidance.

Heat-up dutyPower needed to raise the solution from its starting temperature to its target temperature within the stated time.

Maintenance dutyEstimated power needed to offset heat loss once the solution reaches operating temperature.

Design marginAdditional allowance for uncertainty and real-world losses not captured by the simplified model.