Radiator Size Formula:
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Definition: This calculator estimates the required wattage for an electric radiator based on room volume.
Purpose: It helps homeowners and professionals determine the appropriate radiator size for efficient room heating.
The calculator uses the formula:
Where:
Explanation: The standard calculation uses 40 Watts per cubic meter as a general rule for well-insulated rooms.
Details: Correct radiator sizing ensures efficient heating, energy savings, and prevents under- or over-heating of spaces.
Tips: Simply enter the room volume in cubic meters. The value must be greater than 0.
Q1: Why 40 Watts per cubic meter?
A: This is a standard value for well-insulated rooms. Poor insulation may require 50-60 W/m³.
Q2: How do I calculate room volume?
A: Multiply room length × width × height in meters.
Q3: When would I need more than 40 W/m³?
A: For rooms with high ceilings, poor insulation, or in very cold climates.
Q4: Does this work for all room types?
A: Bathrooms typically need more (about 60 W/m³), while bedrooms may need less.
Q5: Should I round up the calculated wattage?
A: Yes, it's recommended to round up to the nearest available radiator size.