1. What is an Electric Underfloor Heating Calculator?

Definition: This calculator estimates the heat output in BTU/h (British Thermal Units per hour) for electric underfloor heating systems based on power input in Watts.

Purpose: It helps homeowners and installers determine the heating capacity of electric floor heating systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q \) — Heat output (BTU/h)
• \( P \) — Power input (Watts)

Explanation: The conversion factor 3412 represents the number of BTUs produced per hour by one Watt of electrical power.

3. Importance of BTU Calculation

Details: Proper heat output estimation ensures adequate heating for the space, energy efficiency, and system sizing accuracy.

4. Using the Calculator

Tips: Enter the power input in Watts (typically found on the heating system specifications). Value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why 3412 as the conversion factor?
A: 1 Watt = 3.412 BTU/h, so 3412 comes from converting Watts to BTU/h (1 kW = 3412 BTU/h).

Q2: What's a typical power input for underfloor heating?
A: Most systems range between 100-200 Watts per square meter, depending on the room type and insulation.

Q3: Does this account for heat loss?
A: No, this calculates maximum potential output. Actual heating will depend on room insulation and temperature settings.

Q4: How do I find the power input?
A: Check your heating system specifications or multiply the system's wattage per sq ft by your floor area.

Q5: Can I use this for hydronic (water-based) systems?
A: No, this calculator is specifically for electric underfloor heating systems.