Electric Radiator BTU Formula:
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Electric radiator sizing calculates the required heating capacity in BTU/hr to effectively heat a room based on its volume and desired temperature difference. Proper sizing ensures efficient heating and energy consumption.
The calculator uses the standard BTU calculation formula:
Where:
Explanation: This formula accounts for the room's heat loss characteristics and the temperature differential needed to maintain comfortable heating.
Details: Correct radiator sizing prevents energy waste from oversized units and ensures adequate heating from undersized units. Proper sizing improves comfort, reduces energy costs, and extends equipment lifespan.
Tips: Measure room volume accurately (length × width × height). Determine ΔT by subtracting the coldest expected outdoor temperature from your desired indoor temperature. All values must be positive numbers.
Q1: What if my room has poor insulation?
A: For poorly insulated rooms, consider using a higher multiplier (40-45 instead of 34) to account for greater heat loss.
Q2: How do I calculate room volume?
A: Multiply room length × width × height in meters. For irregular rooms, divide into rectangular sections and sum the volumes.
Q3: What ΔT should I use?
A: Typical ΔT is 20-25°C (desired 21°C indoor minus -4°C to 1°C outdoor), but adjust based on your climate and comfort needs.
Q4: Can I use this for multiple rooms?
A: Calculate BTU requirements for each room separately, as heating needs vary based on room size, windows, and insulation.
Q5: What about room-specific factors?
A: Consider additional factors like window area, external walls, and ceiling height which may require adjusting the calculated BTU value.