Heater Wattage Formula:
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Definition: This calculator estimates the required wattage of an electric heater based on room volume.
Purpose: It helps determine the appropriate heater size for efficient room heating.
The calculator uses the formula:
Where:
Explanation: The formula assumes 40 watts per cubic meter as a general rule for heating a standard room.
Details: Correct wattage calculation ensures efficient heating, energy savings, and prevents under- or over-heating.
Tips: Enter the room volume in cubic meters. The value must be > 0.
Q1: Why 40 watts per cubic meter?
A: This is a standard estimate for average insulation. Adjust up for poor insulation or down for excellent insulation.
Q2: How do I calculate room volume?
A: Multiply room length × width × height in meters.
Q3: Should I round up the wattage?
A: Yes, it's recommended to round up to the nearest standard heater size.
Q4: Does this work for all room types?
A: This is for standard rooms. Bathrooms may need more, while well-insulated rooms may need less.
Q5: What about room shape and windows?
A: For rooms with many windows or unusual shapes, consider adding 10-20% to the calculated wattage.