BTU Formula:
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Definition: This calculator estimates the British Thermal Units (BTU) needed for radiant floor heating systems based on the area to be heated.
Purpose: It helps HVAC professionals and homeowners determine the heating capacity required for efficient radiant floor systems.
The calculator uses the formula:
Where:
Explanation: The standard calculation uses 25 BTU per square foot as a rule of thumb for radiant floor heating systems.
Details: Proper BTU estimation ensures efficient heating, energy savings, and prevents system over/under sizing.
Tips: Enter the floor area in square feet. The value must be > 0.
Q1: Why 25 BTU per square foot?
A: This is a standard value for well-insulated homes. Adjustments may be needed for specific conditions.
Q2: When would I use a different BTU value?
A: Use higher values (30-35) for poorly insulated spaces or colder climates, lower values (20) for well-insulated spaces.
Q3: Does this include heat loss calculations?
A: This is a simplified calculation. For precise sizing, a professional heat loss calculation is recommended.
Q4: Can I use this for whole-house heating?
A: Yes, if using radiant floor for the primary heat source throughout the home.
Q5: How does this compare to other heating systems?
A: Radiant floors typically require slightly lower BTU than forced-air systems due to more efficient heat distribution.