This is a reliable sauna heater with internal control for home and commercial use. You can adjust temperature and time, and enjoy a cozy & comfortable sauna experience.Need Sauna StonesTo ensure safety, please don't use the heater without stones. Please only use the stone for the sauna heater. The machine needs 20-25kg stones.Wall Mount InstallationThis dry sauna heater is easy & quick to install since we will offer the whole accessories. Wall-mount design, with screw holes at the back.SpecificationsName: Electric Sauna heater StovePower: 4.5KWWorking Voltage: 220-240V(If you need a 380V sauna heater, please contact me.)Suitable Sauna Room: 3-6m³Sauna Stone Need: 20-25KG(Not Included)Temperature Range: Max 110℃Package size: 43*32*63cmAttention1. Please ask professional electricians to install the product. 2. The default voltage of the product is 220V. If you need a 380V sauna heater, please contact me.3. If the local voltage is 100V-110V, please purchase a transformer (not included) before installation.