Statistical presentation

Data description

The data basis for the statistics is a sample-based survey. The statistics calculate the number of homes and holiday homes in Denmark that are entirely or partially heated by wood stoves, etc., and the proportion these homes represent of the total housing stock. The statistics cover private homes and holiday homes, and therefore do not include businesses and their use of firewood or other biomass for heating. The total consumption of firewood, etc., measured in Gigajoules (GJ) for the year 2023 is calculated, and the results are presented as totals and broken down by geography, primary heat sources, wood stove types, and housing types.

Classification system

Geography: Some results are broken down by geography, i.e., municipalities or regions.

Housing Types: The statistics distinguish between the following housing types: - Single-family houses (includes the following BBR application codes: 1040099 Parcel, single-family house, 1040084 Farmhouse, 1040089 Row, chain or semi-detached house, 1040097 Other unit for permanent residence). - Apartment buildings (includes the following BBR application code: 1040100 Apartment building complex). - Holiday homes (includes the following BBR application codes: 1040090 Summerhouse, 1040092 Allotment garden house).

For single-family houses, the selection of the sample distinguishes between whether the building's primary heating installation, according to BBR, is district heating (1000363 District heating/block heating) or not.

For holiday homes, a distinction is made between whether residents are registered or not according to the CPR register, to distinguish between holiday homes with or without permanent residents.

Sector coverage

The statistics exclusively concern private households' use of firewood and other biomass for heating purposes. Where a business is located together with the home, the heating often also covers this purpose.

Statistical concepts and definitions

Wood pellet stoves, etc. : Pellet stoves, etc. are primary or secondary heat sources in private homes and holiday homes, typically using wood pellets for space heating and possibly production of hot water. Pellet stoves, etc., include: - Pellet furnace: Usually the main heating source, using wood pellets for space heating and hot water. - Pellet stove: Often a supplementary heating source, using wood pellets for space heating. The two terms are often used interchangeably.

Statistical unit

Homes and uninhabited holiday homes.

Statistical population

Dwellings and uninhabited holiday cottages using firewood and other biomass for heating

Reference area

Denmark.

Time coverage

The statistics cover the year 2023, but similar surveys for 2021 and earlier years are available on the Danish Energy Agency's website.

Base period

Not applicable for these statistics.

Unit of measure

The results are presented in terms of the number of homes with wood stoves, etc., and their share of the total number of homes, as well as the total consumption of firewood measured in Gigajoules (GJ) or Terajoules (TJ). The statistics may eventually be expanded to include pellet stoves, etc., as well as straw and wood chip furnaces. During data collection, consumption is asked for in cubic meters, firewood towers, sacks, or weight, depending on the fuel type.

Reference period

The data collection concerns the respondents' use of firewood, etc., during the heating season 2023/2024, i.e., from June 1, 2023, to May 31, 2024. The results for firewood consumption are converted to the calendar year 2023 by adjusting for the ratio between the number of degree-days in the heating season 2023/2024 and the calendar year 2023.

Frequency of dissemination

The statistics are compiled every other year.

Legal acts and other agreements

Participation in the survey is voluntary and therefore does not require data collection authority.

Cost and burden

The reporting burden has not been calculated for these statistics, as participation in the survey is voluntary.

Comment

For further information, please refer to the statistics' topic page