Do they? A GFCI does not do surge protection. And a surge protector does not protect human life. Those are completely different devices for completely different anomalies.
Googling also says exactly what I have posted.
This is difficult for some because many urban myths exist due to hearsay. Unlearning what is first believed is hard. Best is to always assume any recommendation provided without perspective (ie specification numbers) is a lie. Then urban myths are not believed. Where is any number that says a GFCI is also a surge protector? No numbers is a classic symptom of a scam.
One can let others do numbers for them as Jeanne recommends. Simply buy an oil filled heater with a thermostat already selected only for that heater - that also has a UL listing (which is essential for human safety).









Reply With Quote