Documentation of statistics: Use of firewood and other types of biomass for heating purposes in dwellings and holiday cottages
The interviews were collected via a web-based questionnaire, with approximately 20,000 responses most recently collected.
https://www.dst.dk/en/Statistik/dokumentation/documentationofstatistics/use-of-firewood-and-other-types-of-biomass-for-heating-purposes-in-dwellings-and-holiday-cottages
Documentation of statistics