A longer stated warranty, on at least part of the product: Almost Heaven Saunas Hillsboro 2 Person Indoor Sauna
Almost Heaven Saunas states: Almost Heaven Saunas come with a Limited Lifetime Warranty covering manufacturing defects, while Harvia heaters include a 1-year warranty on heating elements and 5 years on other components. Finnleo states for the Hallmark 57: 5-year limited warranty on wood cabinetry (parts, incl. freight for 5 years).