1. What is an Underfloor Heating Running Cost Calculator?

Definition: This calculator estimates the daily electricity cost of running underfloor heating systems in the UK.

Purpose: Helps homeowners and businesses estimate heating expenses to budget effectively and compare system efficiency.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Cost — Daily running cost in pounds (£)
• Power — System power consumption in watts (W)
• Time — Daily operating hours (h)
• Price — Electricity cost per kilowatt-hour (£/kWh)

Explanation: Converts watt-hours to kilowatt-hours (dividing by 1000) then multiplies by electricity price.

3. Importance of Running Cost Calculation

Details: Understanding heating costs helps with energy budgeting, system comparisons, and identifying potential savings through usage optimization.

4. Using the Calculator

Tips:

• Find your system's power rating (typically 100-200W/m² for electric systems)
• Multiply by total heated area for total system power
• Default electricity price reflects UK average (34p/kWh)
• All values must be > 0

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: It provides estimates. Actual costs vary based on insulation, thermostat settings, and temperature differences.

Q2: What's a typical power rating for underfloor heating?
A: Electric systems typically use 100-200W per square meter, depending on room type and insulation.

Q3: How can I reduce running costs?
A: Use programmable thermostats, improve insulation, and consider running during off-peak electricity hours.

Q4: Does this work for water-based systems?
A: No, this calculates electric system costs. Water systems require boiler efficiency and gas price inputs.

Q5: Should I include the whole system power or just active zones?
A: Include only the power for zones that will be actively heated during the specified time period.