After seeing heaters like the HUUM I decided to try to make my own Home made heater. Really surprised at how well this thing works!! : r/Sauna
Diy Red Cedar Barrel Sauna Room With Hervia Sauna Heater For 2-4 Persons - Buy Outdoor Sauna Room,Sauna Room,2-4persons Barrel Room Product on Alibaba.com
How to Build a DIY Barrel Sauna From Scratch, and When To Buy a DIY Kit Instead - SaunaMarketplace.com