FWIW, My glass heater would have the coils rattle against the glass.
If you want to check it, I would try it in a GFI outlet in a bucket.
Also, remember to let it sit unplugged for a while to equalize the temps before plugging it in.
If you want to check it, I would try it in a GFI outlet in a bucket.
Also, remember to let it sit unplugged for a while to equalize the temps before plugging it in.