So, for quite a while I have wanted to install a whole house generator in my garage. I've got access to my chimney stack, so I can just vent it there (feel better with it inside than out). Anyway, I'm trying to get an idea of what size I would need. I'm an auto mechanic my trade, so i'm most likely looking at cobbling something together, and paying someone to wire it into my main breaker box (also in the garage, very near where I want it). Anyway, on to my question: I'm having trouble picking out what size generator I would need. I've been tracking my IPL kWh readings over the last year, and My peak was 1500 kWh in a month, with an average of 920 over the last year. So figuring my highest over the last year at 1500 kWh for the month of December, so my average would be 1600 kWh / 30 days * 24 hours = and average of 2.2 kWh. I understand this is an average, but I'm just trying to figure all this out in my head. Anyone with an understanding point me in the right direction if I'm off?