I'm thinking about upgrading my generator. The one I'm using now is small, a 5.50kW portable (on wheels). If we run the water pump & water heater together (with lights etc.) it will pop one of the breakers on the generator. When this happens we have only 1 side of the 220 v supply coming in to the house which causes some weird brownout situation. When I lose one phase I believe I have a miswired fixture in my house that is allowing power to pass from the hot leg in the panel to the dead leg which causes this brownout where some of the lights won't turn on until you turn something else on - then they are dim too. I didn't know the problem existed until I overloaded the generator. I believe it is a ceiling fan/light that was miswired. I'm not too worried about it since it has been this way since he house was built in 2003 but it needs to be fixed obviously. My house wiring has been modified. The previous owners had a 2nd 200W panel installed in the house so they could separate the 1st floor wiring from the 2nd floor. A generator transfer switch was installed too. Theis selector switch toggles the supply for the 1st floor panel between "generator" or "normal". This allows me to run my 1st floor on the generator via an outside cord that was also installed. I would like to install a larger permanent generator outside. I would appreciate any info/experience you can share. Thanks!