Resistance heaters are a very inefficient way to heat (yes, I know they are 100% efficient), and I wonder if the grid could handle a significant number of homes

Resistance heaters are a very inefficient way to heat (yes, I know they are 100% efficient), and I wonder if the grid could handle a significant number of homes switching to electrical resistance heat? Hopefully the government is already incentivizing switching to heat pumps, but that's not a quick solution.