Affordable portable electric models resembling column heaters are plugged into electrical outlets. Wall- or ceiling-mounted heaters, also known as heat strips, are slim, space-saving panels that fit flush with the wall or ceiling and are wired into the home’s electrical system (this must be done by an electrician). They don’t emit light or glow but they are cheaper to run than gas. A bank of heaters can be installed to warm big spaces.
from $80 for portable or $500 for fixed, plus installation