Portable electric heaters

We always winter in our trailer. Most of the time in Florida and the nights do get cool to cold sometimes. We just shut the bedroom door and use a regular electric heater with fan and stat. Normally this lasts for 4 or 5 years before the fan wears out. Works great for such a small area. DW gets up first to first to turn on coffee and either the fireplace or the furnace. Works for us for the last 12 years.
Oh yeah it helps a lot to have a trailer that is designed for heat and cold, Jayco has a nice insulation package.