A landlord of premises which are subject to a residential tenancy and served by a water heater serving only that premises shall set the thermostat of that water heater at no higher than 125 degrees Fahrenheit before any new tenant occupies that premises or at the minimum setting of that water heater if the minimum setting is higher than 125 degrees Fahrenheit.
Wis. Stat. § 704.06
Water heater thermostat settings
1987 a. 102.
Official source: Wisconsin State Legislature. Reproduced from public-domain Wisconsin statutes; confirm against the official source for the current text. Not legal advice.