The Sauna Twins Podcast - Sauna specialists share their expertise on everything sauna to enjoy an authentic sauna experience and how to sauna properly. Finnmark Sauna is the home of the finest quality Finnish-made, Finnish-designed sauna equipment in the UK. We specialise in the bespoke design and installation of authentic Finnish sauna, cabins, wood burning and electric sauna heaters, as well as sauna parts and accessories. Sauna Business of the Year. Finnmark Sauna are the UK's sole official distributor of many world-leading Finnish sauna brands.