Agreed with the other comment, the sealed oil radiator heaters are near silent (no fan) and have no trouble heating up a small/mid sized room after some time. The newer ones nowadays have a thermostat so you can set the temperature to something specific & have it heat up to that temperature.
That won’t go well for you long term, Paypal will eventually catch on and permaban you. You’ll also lose whatever funds were in the account during that time.
If you still go through with it I suspect you’ll need to figure out how to buy a non-virtual phone number, just seems like a waste of time since Paypal will eventually add it to their permaban/fraud database.