On July 7, 2009 at 18:27, Gizmologist09 said...
Do you truly want to run the water heater and HVAC and stove from a battery backup systems? I have built systems large enough to do this on bus conversions but not a standard stick house. You are talking about an inordinately large battery bank and inverter system.
I doubt they want to run the entire house.. I have never even seen a generator run the entire house before and I have worked on some extremely large projects/homes. You always pick a number of must have life safety items to run and a couple important areas of the house to light and put that on the generator. Even with a generator if you really want to protect correctly you still need a UPS for the period of time when the power goes out and the generator starts and gets running. I have worked on 2 houses where we had a single large UPS to cover this down time rather than various UPS's throughout the house. Much easier to install and maintain.
