Question: What is the maximum amount of humidity the Polar Steamy sauna heater will put out in my sauna?
Answer: Every room is a little different because of size and the environment surrounding that room. But, the Polar Steamy sauna heater could get the sauna room to approximately 70% humidity.

Question: Do you need a water line for this Polar Steamy sauna heater?
Answer: The Polar Steamy sauna heater can be ordered as a "manual fill" or "auto-fill". The auto fill version will need a water line run to the point of hook-up.