Use a vented heater...
https://www.homedepot.com/p/30-000-...-Cabinet-Mounted-Thermostat-3003622/100084617
take it w/ you if you leave..
https://www.homedepot.com/p/30-000-...-Cabinet-Mounted-Thermostat-3003622/100084617
take it w/ you if you leave..