Originally Posted by 95SLE
Breakers do wear out with age, should not be an issue here, or when running at max current draw for extended periods of time. I would replace with a new 15 amp breaker and see if that cures the problem.
Yes they do wear out. some sooner than others. replace it with another 15 amp.only
by the way... an electric space heaters, toasters and an cloths Iron use the most electricity than just about anything else in your house.
you may want to run a heavy extention cord from another power source
for when you need the heater.