Historic American Buildings Survey, C. (1933) Middlesex Canal, Maple Meadow Brook Aqueduct, Wilmington, Middlesex County, MA. Massachusetts Middlesex County Wilmington, 1933. Documentation Compiled After. [Photograph] Retrieved from the Library of Congress, https://www.loc.gov/item/ma0778/.
6. Avoid outstaying your welcome. The appropriate amount of time to spend in the sauna is around 15â20 minutes at the most, and less if you feel too hot or uncomfortable. It is better to go in and out, taking cooling down breaks, than to roast in it for too long.7. Cool down gradually after the sauna.he appropriate amount of time to spend in the sauna is around 15â20 minutes at the most, and less if you feel too hot or uncomfortable. It is better to go in and out, taking cooling down breaks, than to roast in it for too long. 7. Cool down gradually after the sauna.
The optimal sauna temperature varies by individual; some people like a lower temperature heat such as 165F, while others prefer a higher temperature of, say, 190F. As a rule of thumb we say that a sauna room will heat to 165F in about 30-40 minutes and to 190F in less than 60 minutes. Heat-up time is also based on ambient temperature. A sauna located outside in an air temperature of 50F will heat faster than a sauna located in the cooler temperature of 20F.