Savings Formula:
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Definition: This calculator estimates the potential savings when switching from a gas heating system to a heat pump in the UK.
Purpose: It helps homeowners and businesses evaluate the financial benefits of adopting more energy-efficient heat pump technology.
The calculator uses the formula:
Where:
Explanation: The simple difference between your current gas heating costs and projected heat pump costs shows your potential savings.
Details: Understanding potential savings helps justify the initial investment in heat pump technology and supports energy transition decisions.
Tips: Enter your current annual gas heating costs and estimated annual heat pump running costs. Both values must be ≥ 0.
Q1: What costs should I include in gas cost?
A: Include all gas heating-related expenses - boiler maintenance, standing charges, and actual gas usage costs.
Q2: How do I estimate heat pump costs?
A: Consider electricity costs (about 1/3 of gas per kWh), heat pump efficiency (COP), and any maintenance costs.
Q3: Does this include installation costs?
A: No, this compares annual running costs only. Installation would be a separate upfront cost calculation.
Q4: What's a typical saving in the UK?
A: Savings vary but average £200-£500 annually, depending on property size and insulation.
Q5: Are there government incentives?
A: Yes, check the Boiler Upgrade Scheme (BUS) which offers £7,500 grants for heat pump installations.