My water heater went out and I'd like to replace it with a tankless. Electrical setup is as follows:
A.O.Smith 50gal water heater - 1, 30amp double pole breaker
Tankless needs - 2, 40amp double pole breakers
I have a 125amp Eaton breaker box. I'd like to know if I can replace the 30amp DP with a 40amp DP, add another 40amp DP, run 8 gauge wire, and still keep the same 125amp breaker box without doing damage or running the possibility of burning the condo down?
Thanks in advance for any help.