my rv runs 110 volts ie air con,frige,microwave,coffee maker,slow cooker,toaster,hair drier,straightners,batterie charger,water pump ect ect. i run my tv ,laptop,sky box from my 1200w inverter. i do not have a step up step down transformer and use a yellow site box.my origanal geni died and was replaced with a 3.5 geni with 110 and 240 ,this i just squeezed in the original space,but have to unbolt and slide out to fill it up with petrol (pic). i would like a honda portable but they only do 240v. unless you know diferent???