[TenTec] emergency power via generator

[John]

OK guys I thank all of you for the battery back up for emergency power information.   I have received the OK from the xyl to use some household funds to buy a generator if it can also be used for some household appliances i.e..  Freezer, hotwlater heater some electric etc.  My question is this ... disregarding size what must I have in a generator to be able to run my Ten Tec Orion II and computer ( re thought the use of amplifier emergency use means I would be listening more and transmitting less )  as well as some household items .  I may even be considering a propane generator.  I am concerned in providing clean power to my radio and computer what should I insist on in order not to damage my equipment ?  Thanks again   de   John Molenda  kb2huk