Overview
- Average 70 m² flat: gas +15% to about €1,180; pellets +20% to €740; oil +3% to €1,055; district heat +2% to €1,245; heat pumps +5% to €715.
- Co2online attributes the 2025 rebound to higher energy prices and a colder start to the year after declines in 2024.
- Operating a heat pump is now the lowest-cost option on average, based on data from roughly 90,000 buildings.
- Nine in ten households could cut bills by about €400 a year through thermostat settings, proper ventilation, lower hot water use and low-cost technical upgrades.
- Over the next two decades, costs for gas and oil could roughly triple, with pellets and district heat roughly doubling, as CO2 pricing rises and gas-network fees increase with fewer customers.