So I wanted to throw this out there, and have a pro take a look at it.
My questions are:
A) With 2 5500w elements @ 240v - I'm looking at roughly 44 amps combined. With both chuggers, a total of 47. Call it 50 with the vent fan and some lights. The rule of thumb is add 25% to get breaker value, right? 62.5... Is a 60 amp spa panel going to cut it, or will I be spiking it and potentially be shut off?
2) If I have the spa panel - more breakers seems excessive. I get redundancy, but is is really necessary? Does this make it safer somehow? Everyone seems to suggest having breakers directly in the panel.
D) Is there any limit on distance from the spa panel? Like, if my main panel is in the basement and this is going in the garage, does it matter if the sub panel is in the basement or garage? Simplicity for reset suggests to put it in the garage, but do I have to have it a certain distance from the main panel instead?
The panel I designed. I already own the panel and just about every component. I'm having the cover cut out with a waterjet so I don't have to drill and dremel 9 million holes.
The schematic. It's not the prettiest thing in the world. I used Microsoft Visio basically because it's all I have. Curious if there's any good freeware schematic software out there. I'm always doing diagrams for DC automotive applications. It'd be nice to have a better software. Thigs may look crammed but the schematic is loosely based on where components will physically sit - to make wiring day possibly a tad easier.