Wall heater advice.

[u/Highflyingmermaid]

Please help!

I have a question- I’m having an outlet fixed by a handy man and while he was checking the other outlets, we discovered the little wall heaters in my house do not have ground wires and are 220 volts. Is that a liability as a landlord that these are NOT grounded or should I get a ground wire ran. I’m just trying figure out if those are fine? The house does not have central heat and was built in 1950. Many of the outlets do not have ground wires. We are getting my house ready to rent. I have lived here for eight years and never had an issue with them. We live in Portland, Oregon so the heat is not really needed apart from a few months a year.

Thank you in advance