In addition to the fact that a round sauna looks nice and is cozy to sit in, the round shape offers a big advantage over the square models. The curved roof shape and the absence of corners allow the hot air to rotate more freely in the sauna. This ensures good heat distribution and high heat output, as the entire sauna is evenly heated. This can be compared to the heat distribution of the usual square sauna. Here the heat is layered so that most of the heat settles like a lid at the top of the sauna.