[fkim119]

I have 2 tankless water heaters at my house. One for the upstairs and one for downstairs.

I also added buttons to turn on the water heaters in advance in the kitchen, master bath, and guest rooms. You push the little button, wait one or two minutes and you have piping hot water. No need to wait.

The newer models are much better and more efficient then the models of even 5 years ago.

I would highly recommend it.