Internal air tunnel for HIVE sauna heaters speeds up sauna heating by 25% and extends the life span of heating elements. It is made of stainless steel and installed in the middle of the heater. When using the air tunnel, you need approximately 2 boxes fewer stones.
- compatible with all HIVE models
- shorter heating period
- longer life expectancy for the heating elements
- less stones needed
- stainless steel
