Let's see your controller box

[Jack C]

Very nice, you will keep it close to the boiler with the short cord between the element and controller. Is that a double and a single breaker on the front?

[Dewstiller]

Yes, I am going to reverse the cords and likely install the unit on the wall; with the longer cord reaching down to the boiler over yonder..

It is a triple breaker 1500 watts, a piece. So 4500 watts (220) some, will criticize and say it will be slow compared to say 5500 watts but for the time being.. That's what I am working with.

[Jack C]

It looks great was just curious if it was a 220v plus a 110v power at the box. I am sure it will do great for you.