The 2025 heating season: legal requirements and grants for pellet boilers

Pellet boilers are one of the most popular environmentally friendly heat sources in Polish homes. In 2025, specific legal requirements and funding opportunities apply, which are worth understanding before deciding to invest.

Legal requirements

For a pellet boiler to be used and qualify for funding, it must meet specific conditions:

• Technical and environmental standards – only appliances that comply with current requirements may be installed in homes.
• ZUM List – the boiler must be included in the List of Green Appliances and Materials (ZUM), maintained by National Fund for Environmental Protection and Water Management (NFOŚiGW).
• No grates or pre-furnaces – appliances must not have components that allow fuels other than pellets to be burnt, preventing increased pollutant emissions.
• Installation requirements – the boiler must be installed in accordance with the manufacturer’s guidelines and applicable building and sanitary regulations.

Funding programmes

The main source of financial support for those investing remains the programme „Czyste Powietrze”.

What the funding covers

Funding covers:

• purchase of the boiler,
• its installation,
• initial commissioning.

Support levels

The grant amount depends on household income:

• 40–55% of eligible costs – the basic threshold for people with an annual income of up to 135 thousand zł,
• 70–80% of costs – for households with lower monthly incomes,
• up to 100% of costs – for households with the lowest incomes.

The maximum grant for a pellet boiler can be as much as 20 400 zł.

Grant eligibility requirements

To obtain funding, you must:

• submit an application online or at the relevant office,
• provide documents confirming ownership of the property,
• demonstrate that the chosen boiler meets the technical requirements and is included in the ZUM List.

Summary

The 2025 heating season is a good time to invest in an environmentally friendly heat source. Pellet boilers meet high technical and environmental requirements, and their purchase cost can be significantly reduced through the programme „Czyste Powietrze”. Before buying, it is essential to check that the appliance is included in the ZUM List. This means the investment supports environmental protection and also provides access to attractive funding.