heat is the least efficient thing to use electricity for..
it is good for turning motors, and other tasks, but for
heating i would suggest gas, too. For one thing most gas
is domestic, natural gas or pressurized gas is from sources
close to home. Who knows how electricity is generated? some
nuclear, some coal, some oil, some hydroelectric. IF you
use electricity you support these forms of industry..
not all of which are bad, but you are dependant on them..
if the power goes out, you can still cook if you are not
tied to grid-based sources. The company you may need to
get gas from might be the same as the electric co. but
usually the ;gas flows even when the electrons don't!