Aaahhhh ... I forgot you live in a BIG house
I am jealous ! I live in a small 1 bedroom apartment. I hear you, my air conditioner is sucking 1800W for each too. But I can't let the fish enjoy all the cool with the chiller and let us suffer with the heat, so we bought the air conditioners instead
I showed my husband all the pictures from your sump and your electrical boards (because I want him to do it for me the same) and he said he couldn't believe they were built from someone that is just getting into reef hobby. He said you must have done a lot of homework beforehand and must be a very talent handy person too.
Unfortunately, I don't have a husband who has a talent like you