This short media release provides guidance on decommissioning a heating oil tank.

In 2020–2022, owners of detached and semi-detached houses which are in year-round residential use may apply for a discretionary government grant for decommissioning an oil-heating system and replacing the oil-heating system with other forms of heating. 

Details of discretionary government grants are available at  https://www.ely-keskus.fi/avustus-oljylammityksen-vaihtajalle-ukk (in Finnish).