### Energy Economics The main difference is efficiency. A gas boiler delivers a maximum of 92–98% of the fuel's energy. An air-to-water heat pump has an average annual efficiency (SCOP) of around 3.5–4.5. This means that for every 1 kW of electricity consumed, you get up to 4.5 kW of heat.
### Comparative Characteristics
**Connection cost:** Gas connection often requires complex projects and permits. Installing a heat pump only requires dedicated electrical capacity.
**Safety:** No open flame, no explosive fuel, no combustion products (carbon monoxide).
**Autonomy and ecology:** A heat pump can be powered by solar panels, making your home energy-independent.
### 2026 Verdict At current Ukrainian energy prices, the payback period for a heat pump compared to a new gas connection is 4–6 years. In addition to heating, the pump provides summer cooling — an extra benefit at no extra cost. A gas boiler remains relevant only as a backup source in bivalent systems for very old buildings with poor insulation.