Rheem Richmond tankless water heater repair, look for flame rods code 11 or 12

Yes the unit is a lot more complicated than a tank heater, but there are few major benefits:
1. Endless hot water. Even when whole family takes a bath and bubble bath and whirlpool.
2. Savings on not heating lots of water you may not use. Heat only water you use.
1. Comlexity of the unit
2. Needing to provide soft waree

Our unit worked for 10 years I'say its worth it.
I really dodn't have to do much. Just clean the filter. I even use hot water outside the house for kids water parties and dog washing.

I love it.