Using space heater on 950-1200W generator
I got a small used generator 950-1200W, and want it mainly for a space heater and one lamp. Trouble is, the heater is designed to start at 1500W and I'll have to lower it with a single touch pad button with 7 settings as quickly as I can. Will it trip the circuit no matter how fast I lower it? Is there any way I can get rid of the higher settings on the heater, which I never use even when I have power?
And can I mix gas and oil in the same can I use in the summer for the lawnmower, without oil, and throw out excess, or do I need to go buy a separate can? Or can I just pour in a quart of gas, an ounce of oil, etc, and shake it a little? It only takes one gallon.
Thanks as always.
Oh - and how important is the warning 'do not use with small electronics like TVs?' Not that I'd be watching TV because cable will be out too, but I'm just wondering. I assume it's because of how easily they suffer from surge or brownout?