My parents have one of these. They work great, but have a few limitations: * the oil typically needs changed every 100 hours of operation. That was fine, unt

My parents have one of these. They work great, but have a few limitations: * the oil typically needs changed every 100 hours of operation. That was fine, until an ice storm knocked out power for 11 days to my parents house. * if you live in an earthquake zone, most likely after a major quake the gas lines will be down.