Depends on the temperature of the sauna and on the individual. Anything between a few minutes and several hour.
70°C to 100°C, usually around 80°C.
A dry sauna does not need a exhaust fan
In a Swedish sauna yes, in a Finnish sauna no.
Wet sauna is more beneficial with people with psoriasis
You don't have to 'induce' sweating, your body does it automatically when it gets hot and a sauna will make you hot.
No. Room plan is a blueprint. Sauna is a hot room.
There is the normal bath, the pool, the sauna and the shower.
No, since sauna is very humid and it makes your body sweat more.
Read the assembly manual.
Yes. Sauna doesn't get as hot as say a hair dryer.
A sauna is a bath that uses dry heat to induce perspiration, and steam is produced by pouring water on heated stones. A hot tub is a (usually wooden) tub, usually large enough to sit several people, that is filled with hot aerated water and often equipped with a thermostat and whirlpool. It's used for recreation or physical therapy and often found outside, like on a porch. Summary: sauna - uses steam hot tub - uses water
4000000000 degrees not incredibly hot, but hot enough to make you sweat
Steamroom is Turkish invention and a lot colder, Sauna is Finnish invention and a lot hotter place.