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Log Burner Size Formula:
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The Log Burner Size Calculator helps determine the appropriate kilowatt (kW) output required for a wood-burning stove based on room volume and desired temperature increase. Proper sizing ensures efficient heating and optimal performance.
The calculator uses the standard log burner sizing formula:
Where:
Explanation: This formula accounts for the room's volume and the temperature difference needed, using a standard heat loss coefficient typical for UK residential properties.
Details: Proper log burner sizing is crucial for energy efficiency, comfort, and safety. An undersized burner won't heat the room adequately, while an oversized one can cause overheating, waste fuel, and potentially create safety hazards.
Tips: Measure your room's length, width, and height to calculate volume in cubic meters. Determine the temperature increase needed from current room temperature to your desired comfort level. All values must be positive numbers.
Q1: What is the standard heat loss coefficient (0.024) based on?
A: This coefficient is derived from typical UK building insulation standards and represents average heat loss through walls, windows, and ventilation.
Q2: How do I calculate room volume?
A: Multiply room length × width × height in meters. For irregular rooms, divide into regular shapes and sum the volumes.
Q3: What ΔT value should I use?
A: Typical ΔT values range from 15-25°C depending on how much you need to raise the temperature from current to desired level.
Q4: Should I consider room insulation quality?
A: Yes, for poorly insulated rooms, you may need to add 10-20% to the calculated kW. For well-insulated rooms, you might reduce by 10-15%.
Q5: Can this calculator be used for other heating systems?
A: While designed for log burners, the principle applies to other heating systems, though specific coefficients may vary.