whic is the best small room heater in canada?

Electric heaters do not have to be vented, which is ideal for very small rooms, but you get very little heat at a very high price.

An electric heater can put out only 3 BTUs per watt of electricity.

So if you need 4500 BTUs that means 1500 watts.

And you have to make sure the outlet it is plugged into is not overloaded, and that all circuits that are connected with that outlet to

its circuit breaker will not overload the breaker and cause it to trip
OR
its fuse will not overload the fuse and cause it to blow

a stove, convection, conduction, radiation