1. What is a Ground Source Heat Pump Cost Calculator?

Definition: This calculator estimates the installation cost of a ground source heat pump system in the UK based on system size, cost per kW, and additional installation costs.

Purpose: It helps homeowners and installers budget for ground source heat pump installations and compare system costs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{Cost} \) — Total installation cost (£)
• \( \text{Size} \) — Heat pump capacity (kW)
• \( \text{Cost per kW} \) — Unit cost of heat pump (£/kW)
• \( \text{Other Costs} \) — Additional installation costs (£)

Explanation: The heat pump size is multiplied by the cost per kW to get the base unit cost, then other installation costs are added.

3. Importance of Cost Calculation

Details: Accurate cost estimation helps with budgeting, securing financing, and comparing different system options and installers.

4. Using the Calculator

Tips: Enter the heat pump size in kW, cost per kW (default £1200/kW), and other installation costs (default £3000). Size and cost per kW must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's included in "other costs"?
A: This typically includes groundworks, pipework, radiators/underfloor heating upgrades, and installation labor.

Q2: What's a typical cost per kW in the UK?
A: Most systems cost between £1,000-£1,500 per kW, with £1,200 being a reasonable average.

Q3: How do I determine the right size heat pump?
A: A heat loss survey of your property is needed for accurate sizing, but a rough estimate is 0.04-0.06 kW per m³ of your home's volume.

Q4: Are there government grants available?
A: Yes, the UK's Boiler Upgrade Scheme offers £7,500 grants for ground source heat pumps (as of 2024).

Q5: Does this include running costs?
A: No, this calculator only estimates installation costs. Running costs depend on your electricity tariff and system efficiency.