1. What is Radiant Floor Heating?

Radiant floor heating is a method of heating a building through heating coils or water tubes installed under the floor. It provides comfortable, even heat distribution and is known for its energy efficiency compared to traditional forced-air systems.

2. How Does the Calculator Work?

The calculator uses the radiant floor heating formula:

Where:

• \( Area \) — Floor area in square feet
• \( BTU_{factor} \) — Heat output factor (10-20 BTU/sq ft depending on floor type)

Explanation: The BTU factor varies based on floor construction materials, insulation levels, and desired room temperature.

3. Importance of BTU Calculation

Details: Accurate BTU calculation ensures proper sizing of radiant heating systems, preventing underheating or energy waste from oversized systems.

4. Using the Calculator

Tips: Enter the total floor area in square feet and select the appropriate BTU factor based on your floor type and insulation. Area must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What BTU factor should I use for my floor?
A: Use 10 BTU/sq ft for well-insulated concrete slabs, 15 BTU/sq ft for standard installations, and 20 BTU/sq ft for poorly insulated areas or high heat demand.

Q2: How does floor type affect BTU requirements?
A: Tile and stone floors typically require higher BTU factors than wood or carpet due to better heat conductivity.

Q3: Should I include the entire floor area?
A: Calculate only the heated area. Exclude areas under permanent fixtures like cabinets and built-in furniture.

Q4: What about room-specific calculations?
A: For optimal results, calculate each room separately as BTU requirements vary based on room usage and window exposure.

Q5: Are there limitations to this calculation?
A: This provides a general estimate. Professional assessment is recommended for complex installations or unusual building conditions.