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Heater Sizing Worksheet
Work out the heat load needed to bring a container of fluid from its starting temperature to a target temperature inside a set warm-up window, then see which FlexBlanket model codes cover that range.
Your application
Sensible heat load
—
Standard model codes
| Model | Fits | Installed power |
|---|---|---|
| FLB-BH-1 | 4 L / 1 gallon pail | 150 W |
| FLB-BH-2 | 8 L / 2 gallon pail | 200 W |
| FLB-BH-5 | 19 L / 5 gallon bucket | 400 W |
| FLB-DH-60 | 60 L / 16 gallon drum | 800 W |
| FLB-DH-120 | 120 L / 30 gallon drum | 1,000 W |
| FLB-DH-200 | 200 L / 55 gallon drum | 2,000 W at 230 VAC |
| FLB-IBC-275 | 1,000 L / 275 gallon IBC tote | 3,000 W at 230 VAC, two zones |
| FLB-IBC-330 | 1,250 L / 330 gallon IBC tote | 3,000 W at 230 VAC, two zones |
This worksheet returns the sensible heat load needed to raise the contents. It does not model heat lost through the vessel wall to the surrounding air, which is what the loss allowance is there to cover; the allowance you need depends on ambient temperature, insulation and exposure. A process engineer confirms the final wattage against your vessel.
